Reider, Bruce
Activating the Omega 13 Journal Article
In: American Journal of Sports Medicine, vol. 45, no. 2, pp. 275–277, 2017, ISBN: 03635465.
Links | BibTeX | Tags: ACL tear, Concussion, female athlete triad, football, Injury prevention, rugby, Soccer
@article{Reider2017,
title = {Activating the Omega 13},
author = {Reider, Bruce},
doi = {10.1177/0363546517690145},
isbn = {03635465},
year = {2017},
date = {2017-01-01},
journal = {American Journal of Sports Medicine},
volume = {45},
number = {2},
pages = {275--277},
keywords = {ACL tear, Concussion, female athlete triad, football, Injury prevention, rugby, Soccer},
pubstate = {published},
tppubtype = {article}
}
Zusman, E E; Zopfi, P; Kuluva, J; Zuckerman, S
Can Ideas From United States Youth Sports Reduce Judo-Related Head Injuries in Japan? Journal Article
In: World Neurosurgery, vol. 97, pp. 725–727, 2017.
Links | BibTeX | Tags: Concussion, head injury, judo, Secondary impact syndrome, Soccer, traumatic brain injury, Youth sports
@article{Zusman2017,
title = {Can Ideas From United States Youth Sports Reduce Judo-Related Head Injuries in Japan?},
author = {Zusman, E E and Zopfi, P and Kuluva, J and Zuckerman, S},
doi = {10.1016/j.wneu.2016.05.096},
year = {2017},
date = {2017-01-01},
journal = {World Neurosurgery},
volume = {97},
pages = {725--727},
keywords = {Concussion, head injury, judo, Secondary impact syndrome, Soccer, traumatic brain injury, Youth sports},
pubstate = {published},
tppubtype = {article}
}
Hwang, Sungjae; Ma, Lei; Kawata, Keisuke; Tierney, Ryan; Jeka, John J
Vestibular dysfunction after subconcussive head impact Journal Article
In: Journal of Neurotrauma, vol. 34, no. 1, pp. 8–15, 2017, ISBN: 0897-7151 1557-9042.
Abstract | Links | BibTeX | Tags: 2017, BEHAVIORAL assessment, Behavioral assessments, Head trauma, Human studies, Outcome measures, Sensory Feedback, sensory function, Soccer, traumatic brain injury
@article{Hwang2017,
title = {Vestibular dysfunction after subconcussive head impact},
author = {Hwang, Sungjae and Ma, Lei and Kawata, Keisuke and Tierney, Ryan and Jeka, John J},
doi = {10.1089/neu.2015.4238},
isbn = {0897-7151
1557-9042},
year = {2017},
date = {2017-01-01},
journal = {Journal of Neurotrauma},
volume = {34},
number = {1},
pages = {8--15},
publisher = {Mary Ann Liebert, Inc.},
address = {US},
abstract = {Current thinking views mild head impact (i.e., subconcussion) as an underrecognized phenomenon that has the ability to cause significant current and future detrimental neurological effects. Repeated mild impacts to the head, however, often display no observable behavioral deficits based on standard clinical tests, which may lack sensitivity. The current study investigates the effects of subconcussive impacts from soccer heading with innovative measures of vestibular function and walking stability in a pre- 0\textendash2 h, post- 24 h post-heading repeated measures design. The heading group (n = 10) executed 10 headers with soccer balls projected at a velocity of 25 mph (11.2 m/sec) over 10 min. Subjects were evaluated 24 h before, immediately after, and 24 h after soccer heading with: the modified Balance Error Scoring System (mBESS); a walking stability task with visual feedback of trunk movement; and galvanic vestibular stimulation (GVS) while standing with eyes closed on foam. A control group (n = 10) followed the same protocol with no heading. The results showed significant decrease in trunk angle, leg angle gain, and center of mass gain relative to GVS for the heading group compared with controls. Medial-lateral trunk orientation displacement and velocity during treadmill walking increased immediately after mild head impact for the heading group compared with controls. Controls showed an improvement in mBESS scores over time, indicating a learning effect, which was not observed with the heading group. These results suggest that mild head impact leads to a transient dysfunction in vestibular processing, which deters walking stability during task performance. (PsycINFO Database Record (c) 2017 APA, all rights reserved)},
keywords = {2017, BEHAVIORAL assessment, Behavioral assessments, Head trauma, Human studies, Outcome measures, Sensory Feedback, sensory function, Soccer, traumatic brain injury},
pubstate = {published},
tppubtype = {article}
}
Caccese, J B; Lamond, L C; Buckley, T A; Kaminski, T W
Reducing purposeful headers from goal kicks and punts may reduce cumulative exposure to head acceleration Journal Article
In: Research in Sports Medicine, vol. 24, no. 4, pp. 407–415, 2016.
Abstract | Links | BibTeX | Tags: Concussion, Repetitive head impacts, Soccer, subconcussion
@article{Caccese2016b,
title = {Reducing purposeful headers from goal kicks and punts may reduce cumulative exposure to head acceleration},
author = {Caccese, J B and Lamond, L C and Buckley, T A and Kaminski, T W},
doi = {10.1080/15438627.2016.1230549},
year = {2016},
date = {2016-01-01},
journal = {Research in Sports Medicine},
volume = {24},
number = {4},
pages = {407--415},
abstract = {The purpose of this study was to measure peak linear and rotational head acceleration in women’s collegiate soccer and explore the variations in acceleration across different strategic scenarios. Game videos from 14 games were used to identify the strategic scenario in which the athlete headed the ball. Strategic scenarios included: bounce, secondary header, punt, throw-in, goal kick, corner kick, and kick. Peak linear and rotational accelerations were measured using the Smart Impact Monitor (Triax Technologies Inc., Norwalk, CT). Goal kick (38.8 ± 19.4 g, p = 0.001, \ss = 8.9; 9.3 ± 3.9 krad/s2, p = 0.004, \ss = 1.9) and punt (36.0 ± 15.1 g, p = 0.055, \ss = 6.3; 10.1 ± 4.8 krad/s2, p = 0.002, \ss = 2.5) impacts resulted in higher linear and rotational head accelerations than the base variable, kick (30.0 ± 19.5 g; 7.5 ± 4.1 krad/s2). This suggests that limiting headers from goal kicks and punts in younger athletes who are still learning proper heading technique may limit cumulative linear and rotational accelerations. © 2016 Informa UK Limited, trading as Taylor \& Francis Group.},
keywords = {Concussion, Repetitive head impacts, Soccer, subconcussion},
pubstate = {published},
tppubtype = {article}
}
Svaldi, Diana O; McCuen, Emily C; Joshi, Chetas; Robinson, Meghan E; Nho, Yeseul; Hannemann, Robert; Nauman, Eric A; Leverenz, Larry J; Talavage, Thomas M
Cerebrovascular reactivity changes in asymptomatic female athletes attributable to high school soccer participation Journal Article
In: Brain Imaging & Behavior, 2016, ISBN: 1931-7557.
Abstract | Links | BibTeX | Tags: 2016, Cerebrovascular reactivity, Collision sports, Head impacts, mild traumatic brain injury, No terms assigned, Soccer
@article{Svaldi2016,
title = {Cerebrovascular reactivity changes in asymptomatic female athletes attributable to high school soccer participation},
author = {Svaldi, Diana O and McCuen, Emily C and Joshi, Chetas and Robinson, Meghan E and Nho, Yeseul and Hannemann, Robert and Nauman, Eric A and Leverenz, Larry J and Talavage, Thomas M},
doi = {10.1007/s11682-016-9509-6},
isbn = {1931-7557},
year = {2016},
date = {2016-01-01},
journal = {Brain Imaging \& Behavior},
publisher = {Springer},
address = {Germany},
abstract = {As participation in women’s soccer continues to grow and the longevity of female athletes’ careers continues to increase, prevention and care for mTBI in women’s soccer has become a major concern for female athletes since the long-term risks associated with a history of mTBI are well documented. Among women’s sports, soccer exhibits among the highest concussion rates, on par with those of men’s football at the collegiate level. Head impact monitoring technology has revealed that 'concussive hits' occurring directly before symptomatic injury are not predictive of mTBI, suggesting that the cumulative effect of repetitive head impacts experienced by collision sport athletes should be assessed. Neuroimaging biomarkers have proven to be valuable in detecting brain changes that occur before neurocognitive symptoms in collision sport athletes. Quantifying the relationship between changes in these biomarkers and head impacts experienced by female soccer athletes may prove valuable to developing preventative measures for mTBI. This study paired functional magnetic resonance imaging with head impact monitoring to track cerebrovascular reactivity changes throughout a season and to test whether the observed changes could be attributed to mechanical loading experienced by female athletes participating in high school soccer. Marked cerebrovascular reactivity changes were observed in female soccer athletes, relative both to non-collision sport control measures and pre-season measures and were localized to fronto-temporal aspects of the brain. These changes persisted 4\textendash5 months after the season ended and recovered by 8 months after the season. Segregation of the total soccer cohort into cumulative loading groups revealed that population-level changes were driven by athletes experiencing high cumulative loads, although athletes experiencing lower cumulative loads still contributed to group changes. The results of this study imply a non-linear relationship between cumulative loading and cerebrovascular changes with a threshold, above which the risk, of injury likely increases significantly. (PsycINFO Database Record (c) 2016 APA, all rights reserved)},
keywords = {2016, Cerebrovascular reactivity, Collision sports, Head impacts, mild traumatic brain injury, No terms assigned, Soccer},
pubstate = {published},
tppubtype = {article}
}
Andelinović, M; Titlić, M; Andelinović, D
Functional Changes of P300 Values among Young Football Players as a Measure of a Cognitive Function Journal Article
In: Collegium antropologicum, vol. 39, no. 3, pp. 641–645, 2015.
Abstract | BibTeX | Tags: Adolescent, brain concussion, cognition, Craniocerebral Trauma, event related potential, Event-Related Potentials, Evoked Potentials, evoked response, head injury, human, Humans, Male, P300, Pathophysiology, PHYSIOLOGY, psychology, reaction time, Soccer
@article{Andelinovic2015,
title = {Functional Changes of P300 Values among Young Football Players as a Measure of a Cognitive Function},
author = {Andelinovi\'{c}, M and Titli\'{c}, M and Andelinovi\'{c}, D},
year = {2015},
date = {2015-01-01},
journal = {Collegium antropologicum},
volume = {39},
number = {3},
pages = {641--645},
abstract = {Numerous studies have shown that evaluation of evoked potentials (EP) is an excellent estimation tool for a cognitive function. During daily practices footballers are exposed to headers that can leave mild head traumas. In this study, young footballers were examined, while the control group included their coevals who don't practice contact sports. Results of the study have shown that footballers have longer latency value of the P300 wave when target stimulus is presented on N1, N2 and P3, but not on P2. Also, they have longer latency values when non-target stimulus is presented. Amplitude values of target stimulus are not different, but footballers have lower amplitudes of non-target stimulus. This study suggests that EP evaluation method can be used to detect first and mild changes of the brain function.},
keywords = {Adolescent, brain concussion, cognition, Craniocerebral Trauma, event related potential, Event-Related Potentials, Evoked Potentials, evoked response, head injury, human, Humans, Male, P300, Pathophysiology, PHYSIOLOGY, psychology, reaction time, Soccer},
pubstate = {published},
tppubtype = {article}
}
Ellis, M J; Cordingley, D; Vis, S; Reimer, K; Leiter, J; Russell, K
Vestibulo-ocular dysfunction in pediatric sports-related concussion Journal Article
In: Journal of Neurosurgery: Pediatrics, vol. 16, no. 3, pp. 248–255, 2015.
Abstract | Links | BibTeX | Tags: Adolescent, amnesia, Article, Athletic Injuries, Baseball, BASKETBALL, blurred vision, brain concussion, CANADA, Child, childhood disease, cohort analysis, complication, Concussion, consultation, controlled study, disease duration, Dizziness, Female, follow up, football, Hockey, human, Humans, interdisciplinary communication, major clinical study, Male, Manitoba, migraine, neuroimaging, neuropsychological test, Neuropsychological Tests, ODDS ratio, Pathophysiology, Pediatric, Physical Examination, physiotherapy, Post-Concussion Syndrome, postconcussion syndrome, Prevalence, priority journal, Reflex, Retrospective Studies, retrospective study, return to sport, saccadic eye movement, skating, skiing, Soccer, sport injury, sport related concussion, Sports-related concussion, Trauma, vestibular physiotherapy, Vestibular therapy, vestibulo ocular dysfunction, Vestibulo-Ocular, Vestibulo-ocular dysfunction, vestibuloocular reflex, VOLLEYBALL, Young Adult, youth sport
@article{Ellis2015,
title = {Vestibulo-ocular dysfunction in pediatric sports-related concussion},
author = {Ellis, M J and Cordingley, D and Vis, S and Reimer, K and Leiter, J and Russell, K},
doi = {10.3171/2015.1.PEDS14524},
year = {2015},
date = {2015-01-01},
journal = {Journal of Neurosurgery: Pediatrics},
volume = {16},
number = {3},
pages = {248--255},
abstract = {Object The objective of this study was 2-fold: 1) to examine the prevalence of vestibulo-ocular dysfunction (VOD) among children and adolescents with acute sports-related concussion (SRC) and postconcussion syndrome (PCS) who were referred to a multidisciplinary pediatric concussion program; and 2) to determine if VOD is associated with the development of PCS in this cohort. Methods The authors conducted a retrospective review of all patients with acute SRC (presenting 30 days or less postinjury) and PCS (3 or more symptoms for at least 1 month) referred to a multidisciplinary pediatric concussion program between September 2013 and July 2014. Initial assessment included clinical history, physical examination, and Post-Concussion Symptom Scale assessment. Patients were also assessed for VOD, which was defined as more than one subjective vestibular and oculomotor complaint (dizziness, blurred vision, and so on) and more than one objective physical examination finding (abnormal smooth pursuits, saccades, vestibulo-ocular reflex, and so on). This study was approved by the local institutional ethics review board. Results A total of 101 patients (mean age 14.2 years, SD 2.3 years; 63 male and 38 female patients) participated, including 77 (76.2%) with acute SRC and 24 (23.8%) with PCS. Twenty-two of the 77 patients (28.6%) with acute SRC and 15 of the 24 (62.5%) with PCS met the clinical criteria for VOD. The median duration of symptoms was 40 days (interquartile range [IQR] 28.5-54 days) for patients with acute SRC who had VOD compared with 21 days (IQR 13-32 days) for those without VOD (p = 0.0001). There was a statistically significant increase in the adjusted odds of developing PCS among patients with acute SRC who had VOD compared with those without VOD (adjusted OR 4.10; 95% CI 1.04-16.16). Conclusions Evidence of VOD was detected in a significant proportion of children and adolescents with acute SRC and PCS who were referred to a multidisciplinary pediatric concussion program. This clinical feature was a significant risk factor for the subsequent development of PCS in this pediatric acute SRC cohort. © AANS, 2015.},
keywords = {Adolescent, amnesia, Article, Athletic Injuries, Baseball, BASKETBALL, blurred vision, brain concussion, CANADA, Child, childhood disease, cohort analysis, complication, Concussion, consultation, controlled study, disease duration, Dizziness, Female, follow up, football, Hockey, human, Humans, interdisciplinary communication, major clinical study, Male, Manitoba, migraine, neuroimaging, neuropsychological test, Neuropsychological Tests, ODDS ratio, Pathophysiology, Pediatric, Physical Examination, physiotherapy, Post-Concussion Syndrome, postconcussion syndrome, Prevalence, priority journal, Reflex, Retrospective Studies, retrospective study, return to sport, saccadic eye movement, skating, skiing, Soccer, sport injury, sport related concussion, Sports-related concussion, Trauma, vestibular physiotherapy, Vestibular therapy, vestibulo ocular dysfunction, Vestibulo-Ocular, Vestibulo-ocular dysfunction, vestibuloocular reflex, VOLLEYBALL, Young Adult, youth sport},
pubstate = {published},
tppubtype = {article}
}
Edlow, B L; Hinson, H E
Blowing the whistle on sports concussions Journal Article
In: Neurology, vol. 85, no. 17, pp. 1442–1443, 2015.
Abstract | Links | BibTeX | Tags: Alzheimer disease, Chronic traumatic encephalopathy, Concussion, contact sport, Diffusion Tensor Imaging, football, functional magnetic resonance imaging, histopathology, Hockey, human, memory disorder, mood disorder, pathogenesis, Pathophysiology, priority journal, Review, rugby, Soccer, sport injury, sports concussion, traumatic brain injury, wrestling
@article{Edlow2015,
title = {Blowing the whistle on sports concussions},
author = {Edlow, B L and Hinson, H E},
doi = {10.1212/WNL.0000000000001902},
year = {2015},
date = {2015-01-01},
journal = {Neurology},
volume = {85},
number = {17},
pages = {1442--1443},
abstract = {On March 13, 2015, Chris Borland, a star rookie linebacker on the San Francisco 49ers, announced his early retirement from professional football, citing concerns about chronic traumatic encephalopathy (CTE). Borland, who had a history of 2 diagnosed concussions, walked away from a multi-million-dollar contract and potential sports superstardom, explaining that "from what I've researched and what I've experienced, I don't think it's worth the risk." 1 Perhaps just as surprising as Borland's announcement was the support he received from teammates and other athletes-support that reflects a growing recognition in the athletic community that repetitive head trauma may be associated with CTE and other forms of dementia. 2 Indeed, in a recent legal settlement, the National Football League estimated that approximately 30% of its former players will develop dementia. At the high school and college levels, state legislatures and universities have enacted limits to the number of full-contact practices, citing similar concerns about concussions. These developments have prompted a societal conversation about the risks of contact sports. © 2015 American Academy of Neurology.},
keywords = {Alzheimer disease, Chronic traumatic encephalopathy, Concussion, contact sport, Diffusion Tensor Imaging, football, functional magnetic resonance imaging, histopathology, Hockey, human, memory disorder, mood disorder, pathogenesis, Pathophysiology, priority journal, Review, rugby, Soccer, sport injury, sports concussion, traumatic brain injury, wrestling},
pubstate = {published},
tppubtype = {article}
}
Keishiro, Narimatsu; Tomotaka, Takeda; Kazunori, Nakajima; Michiyo, Konno; Takamitsu, Ozawa; Keiichi, Ishigami
Effect of clenching with a mouthguard on head acceleration during heading of a soccer ball Journal Article
In: General Dentistry, vol. 63, no. 6, pp. 41–47, 2015, ISBN: 0363-6771.
BibTeX | Tags: ACCELERATION (Physiology), ADOLESCENCE, Athletes, Brain Concussion -- Prevention and Control, Continuing (Credit), Data Analysis Software, DESCRIPTIVE statistics, Education, Head, High School -- United States, human, Male, Masseter Muscle -- Physiology, Mouthguards -- Utilization, muscle contraction, P-Value, Paired T-Tests, Soccer, Sternocleidomastoid Muscles -- Physiology, UNITED States, Waveforms
@article{Keishiro2015,
title = {Effect of clenching with a mouthguard on head acceleration during heading of a soccer ball},
author = {Keishiro, Narimatsu and Tomotaka, Takeda and Kazunori, Nakajima and Michiyo, Konno and Takamitsu, Ozawa and Keiichi, Ishigami},
isbn = {0363-6771},
year = {2015},
date = {2015-01-01},
journal = {General Dentistry},
volume = {63},
number = {6},
pages = {41--47},
publisher = {Academy of General Dentistry},
address = {Chicago, Illinois},
keywords = {ACCELERATION (Physiology), ADOLESCENCE, Athletes, Brain Concussion -- Prevention and Control, Continuing (Credit), Data Analysis Software, DESCRIPTIVE statistics, Education, Head, High School -- United States, human, Male, Masseter Muscle -- Physiology, Mouthguards -- Utilization, muscle contraction, P-Value, Paired T-Tests, Soccer, Sternocleidomastoid Muscles -- Physiology, UNITED States, Waveforms},
pubstate = {published},
tppubtype = {article}
}
Marinides, Z; Galetta, K M; Andrews, C N; Wilson, J A; Herman, D C; Robinson, C D; Smith, M S; Bentley, B C; Galetta, S L; Balcer, L J; Clugston, J R
Vision testing is additive to the sideline assessment of sports-related concussion Journal Article
In: Neurology: Clinical Practice, vol. 5, no. 1, pp. 25–34, 2015.
Abstract | Links | BibTeX | Tags: Article, athlete, Balance Error Scoring System, brain concussion, clinical assessment, Female, football, human, King Devick Test, major clinical study, Male, priority journal, Soccer, sport injury, Standardized Assessment of Concussion, vision test
@article{Marinides2015,
title = {Vision testing is additive to the sideline assessment of sports-related concussion},
author = {Marinides, Z and Galetta, K M and Andrews, C N and Wilson, J A and Herman, D C and Robinson, C D and Smith, M S and Bentley, B C and Galetta, S L and Balcer, L J and Clugston, J R},
doi = {10.1212/CPJ.0000000000000060},
year = {2015},
date = {2015-01-01},
journal = {Neurology: Clinical Practice},
volume = {5},
number = {1},
pages = {25--34},
abstract = {We examined the King-Devick (K-D) test, a vision-based test of rapid number naming, as a complement to components of the Sport Concussion Assessment Tool, 3rd edition (SCAT3) for diagnosis of concussion. Baseline and postconcussion data for the University of Florida men's football, women's soccer, and women's lacrosse teams were collected, including the K-D test, Standardized Assessment of Concussion (SAC), and Balance Error Scoring System (BESS). Among 30 athletes with first concussion during their athletic season (n 5 217 total), differences from baseline to postinjury showed worsening of K-D time scores in 79%, while SAC showed a ≥2- point worsening in 52%. Combining K-D and SAC captured abnormalities in 89%; adding the BESS identified 100% of concussions. Adding a vision-based test may enhance the detection of athletes with concussion. © 2015 American Academy of Neurology.},
keywords = {Article, athlete, Balance Error Scoring System, brain concussion, clinical assessment, Female, football, human, King Devick Test, major clinical study, Male, priority journal, Soccer, sport injury, Standardized Assessment of Concussion, vision test},
pubstate = {published},
tppubtype = {article}
}
Meehan, W P; Jordaan, M; Prabhu, S P; Carew, L; Mannix, R C; Proctor, M R
Risk of athletes with chiari malformations suffering catastrophic injuries during sports participation is low Journal Article
In: Clinical Journal of Sport Medicine, vol. 25, no. 2, pp. 133–137, 2015.
Abstract | Links | BibTeX | Tags: Adolescent, adult, Arnold Chiari malformation, Arnold-Chiari Malformation, Article, athlete, Athletes, Athletic Injuries, BASKETBALL, Brain Injuries, cerebrospinal fluid, cerebrospinal fluid flow, Child, cohort analysis, Cohort Studies, coma, Concussion, Death, descriptive research, digestive tract parameters, Female, football, foramen magnum, human, Humans, ice hockey, Magnetic Resonance Imaging, major clinical study, Male, MORTALITY, nuclear magnetic resonance imaging, paralysis, paresthesia, pathology, patient participation, priority journal, questionnaire, Retrospective Studies, retrospective study, RISK assessment, risk factor, Soccer, sport injury, Surveys and Questionnaires, terminal disease, Young Adult
@article{Meehan2015,
title = {Risk of athletes with chiari malformations suffering catastrophic injuries during sports participation is low},
author = {Meehan, W P and Jordaan, M and Prabhu, S P and Carew, L and Mannix, R C and Proctor, M R},
doi = {10.1097/JSM.0000000000000107},
year = {2015},
date = {2015-01-01},
journal = {Clinical Journal of Sport Medicine},
volume = {25},
number = {2},
pages = {133--137},
abstract = {Objective: To estimate the risk of athletes with Chiari malformations sustaining a catastrophic injury. Design: Retrospective, descriptive cohort study. Participants: All patients diagnosed with Chiari malformation at our institution between June 2008 and November 2011. Assessment of Risk Factors: Participants were mailed a questionnaire regarding the number of seasons they participated in organized athletics. Magnetic resonance images were reviewed to describe the characteristics of respondent's Chiari malformations. Main Outcome Measures: Whether or not the patient had sustained an injury resulting in death, coma, or paralysis. Results: We had a 53% (N = 147) response rate. Respondents were of a mean age of 15 years (SD, 2 years) at the time of diagnosis. The mean length of protrusion of the cerebellar tonsils below the foramen magnum was 11.2 mm (SD, 5.7 mm). Most of the respondents had pointed cerebellar tonsils and some degree of crowding within the foramen magnum. During a total of 1627 athletic seasons played by patients with Chiari malformation, 0 respondents [95% confidence interval (CI), 0.0000-0.0023] sustained an injury resulting in death, coma, or paralysis. Likewise, during 191 collision sport athletic seasons, 0 (95% CI, 0.0000-0.0191) respondents sustained an injury resulting in death, coma, or paralysis. Conclusions: The risk of athletes with Chiari malformations suffering catastrophic injuries during sports participation is low. This estimate of risk should be considered when making return-toplay decisions. Given the variability of anatomical consideration for patients with Chiari malformations, however, each return-to-play decision must continue to be made on a case-by-case basis, considering all of the available information. Clinical Relevance: The low risk of athletes with Chiari malformations suffering catastrophic injuries in sports should be considered when making return-to-play decisions. © 2014 Wolters Kluwer Health, Inc. All rights reserved.},
keywords = {Adolescent, adult, Arnold Chiari malformation, Arnold-Chiari Malformation, Article, athlete, Athletes, Athletic Injuries, BASKETBALL, Brain Injuries, cerebrospinal fluid, cerebrospinal fluid flow, Child, cohort analysis, Cohort Studies, coma, Concussion, Death, descriptive research, digestive tract parameters, Female, football, foramen magnum, human, Humans, ice hockey, Magnetic Resonance Imaging, major clinical study, Male, MORTALITY, nuclear magnetic resonance imaging, paralysis, paresthesia, pathology, patient participation, priority journal, questionnaire, Retrospective Studies, retrospective study, RISK assessment, risk factor, Soccer, sport injury, Surveys and Questionnaires, terminal disease, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Kerr, Hamish A; Mjaanes, Jeffrey M
Concerns about concussion rates in female youth soccer...JAMA Pediatr. 2014 Mar;168(3):258-64 Journal Article
In: JAMA Pediatr, vol. 168, no. 10, pp. 967–968, 2014, ISBN: 2168-6203.
Links | BibTeX | Tags: Athletic Injuries -- Epidemiology, Brain Concussion -- Epidemiology, Female, Patient Attitudes, Soccer, Students -- Statistics and Numerical Data
@article{Kerr2014,
title = {Concerns about concussion rates in female youth soccer...JAMA Pediatr. 2014 Mar;168(3):258-64},
author = {Kerr, Hamish A and Mjaanes, Jeffrey M},
doi = {10.1001/jamapediatrics.2014.783},
isbn = {2168-6203},
year = {2014},
date = {2014-01-01},
journal = {JAMA Pediatr},
volume = {168},
number = {10},
pages = {967--968},
publisher = {American Medical Association},
address = {Chicago, Illinois},
keywords = {Athletic Injuries -- Epidemiology, Brain Concussion -- Epidemiology, Female, Patient Attitudes, Soccer, Students -- Statistics and Numerical Data},
pubstate = {published},
tppubtype = {article}
}
Buzas, David; Jacobson, Nathan A; Morawa, Lawrence G
Concussions From 9 Youth Organized Sports: Results From NEISS Hospitals Over an 11-Year Time Frame, 2002-2012 Journal Article
In: Orthopaedic Journal of Sports Medicine, pp. 1–8, 2014.
Links | BibTeX | Tags: ADOLESCENCE, Adolescent Health, Age Factors, Athletic Injuries -- Epidemiology -- In Infancy an, Baseball, BASKETBALL, Brain Concussion -- Epidemiology -- In Infancy and, Child, Child Health, Data Analysis Software, descriptive research, DESCRIPTIVE statistics, Disease Surveillance, emergency care, Epidemiological Research, Female, football, Gymnastics, Hockey, human, Male, MICHIGAN, Pearson's Correlation Coefficient, Preschool, Prospective Studies, Racquet Sports, Soccer, unconsciousness, UNITED States, wrestling
@article{Buzas2014,
title = {Concussions From 9 Youth Organized Sports: Results From NEISS Hospitals Over an 11-Year Time Frame, 2002-2012},
author = {Buzas, David and Jacobson, Nathan A and Morawa, Lawrence G},
doi = {10.1177/2325967114528460},
year = {2014},
date = {2014-01-01},
journal = {Orthopaedic Journal of Sports Medicine},
pages = {1--8},
publisher = {Sage Publications Inc.},
address = {Thousand Oaks, California},
keywords = {ADOLESCENCE, Adolescent Health, Age Factors, Athletic Injuries -- Epidemiology -- In Infancy an, Baseball, BASKETBALL, Brain Concussion -- Epidemiology -- In Infancy and, Child, Child Health, Data Analysis Software, descriptive research, DESCRIPTIVE statistics, Disease Surveillance, emergency care, Epidemiological Research, Female, football, Gymnastics, Hockey, human, Male, MICHIGAN, Pearson's Correlation Coefficient, Preschool, Prospective Studies, Racquet Sports, Soccer, unconsciousness, UNITED States, wrestling},
pubstate = {published},
tppubtype = {article}
}
Straume-Naesheim, Truls M; Andersen, Thor Einar; K Holme, Ingar Morten; McIntosh, Andrew S; Dvorak, Jiri; Bahr, Roald
Do minor head impacts in soccer cause concussive injury? A prospective case-control study Journal Article
In: Neurosurgery, vol. 64, pp. 719–25; discussion 725, 2009.
Abstract | BibTeX | Tags: Soccer
@article{Straume-Naesheim2009,
title = {Do minor head impacts in soccer cause concussive injury? A prospective case-control study},
author = {Straume-Naesheim, Truls M and Andersen, Thor Einar and {K Holme}, Ingar Morten and McIntosh, Andrew S and Dvorak, Jiri and Bahr, Roald},
year = {2009},
date = {2009-01-01},
journal = {Neurosurgery},
volume = {64},
pages = {719--25; discussion 725},
address = {Department of Sports Medicine, Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway. truls.straume-nesheim@nih.no},
abstract = {OBJECTIVE: Our objective was to determine whether minor head trauma in elite soccer matches causes measurable impairment in brain function. METHODS: Baseline neuropsychological testing was completed by professional soccer players in the Norwegian elite league, Tippeligaen, before the 2004 and 2005 seasons (n = 462). A player who experienced a head impact during a league match completed a follow-up test the next day (head impact group). Videotapes of all impacts were collected and reviewed. A group of players without head impacts was also tested after a league match to serve as controls (matched control group; n = 47). RESULTS: A total of 228 impacts were identified, and 44 (19.3%) of these were followed up with a CogSport test (CogState, Ltd., Charlton South, Australia; the players who were tested tended to have more severe injuries, but there were only 6 cases with loss of consciousness). The head impact group had a greater change in reaction time from baseline to follow-up compared with the matched control group with regard to the 3 simplest tasks. The largest deficits were seen among the players reporting acute symptoms after the impact, but deficits were also demonstrated among asymptomatic players. Players who experienced 1 or more head impacts during the 2004 season showed a reduction in neuropsychological performance when tested before the 2005 season. However, none of these players was impaired when compared with the test manufacturer's normative data. CONCLUSION: A reduced neuropsychological performance was found after minor head impacts in soccer, even in allegedly asymptomatic players. However, the long-term cognitive consequences are uncertain.},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
McCrory, Paul R
Brain injury and heading in soccer Journal Article
In: BMJ, vol. 327, pp. 351–352, 2003.
@article{McCrory2003,
title = {Brain injury and heading in soccer},
author = {McCrory, Paul R},
year = {2003},
date = {2003-01-01},
journal = {BMJ},
volume = {327},
pages = {351--352},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Naunheim, Rosanne S; Standeven, John; Bayly, Philip
Cumulative effects of soccer heading are not fully known Journal Article
In: BMJ, vol. 327, pp. 1168, 2003.
@article{Naunheim2003,
title = {Cumulative effects of soccer heading are not fully known},
author = {Naunheim, Rosanne S and Standeven, John and Bayly, Philip},
year = {2003},
date = {2003-01-01},
journal = {BMJ},
volume = {327},
pages = {1168},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Kirkendall, D T; Jordan, S E; Garrett, W E
Heading and head injuries in soccer Journal Article
In: Sports Medicine, vol. 31, pp. 369–386, 2001.
Abstract | BibTeX | Tags: Soccer
@article{Kirkendall2001,
title = {Heading and head injuries in soccer},
author = {Kirkendall, D T and Jordan, S E and Garrett, W E},
year = {2001},
date = {2001-01-01},
journal = {Sports Medicine},
volume = {31},
pages = {369--386},
address = {United States Soccer Federation, Chicago, Illinois, USA.},
abstract = {In the world of sports, soccer is unique because of the purposeful use of the unprotected head for controlling and advancing the ball. This skill obviously places the player at risk of head injury and the game does carry some risk. Head injury can be a result of contact of the head with another head (or other body parts), ground, goal post, other unknown objects or even the ball. Such impacts can lead to contusions, fractures, eye injuries, concussions or even, in rare cases, death. Coaches, players, parents and physicians are rightly concerned about the risk of head injury in soccer. Current research shows that selected soccer players have some degree of cognitive dysfunction. It is important to determine the reasons behind such deficits. Purposeful heading has been blamed, but a closer look at the studies that focus on heading has revealed methodological concerns that question the validity of blaming purposeful heading of the ball. The player's history and age (did they play when the ball was leather and could absorb significant amounts of water), alcohol intake, drug intake, learning disabilities, concussion definition and control group use/composition are all factors that cloud the ability to blame purposeful heading. What does seem clear is that a player's history of concussive episodes is a more likely explanation for cognitive deficits. While it is likely that the subconcussive impact of purposeful heading is a doubtful factor in the noted deficits, it is unknown whether multiple subconcussive impacts might have some lingering effects. In addition, it is unknown whether the noted deficits have any affect on daily life. Proper instruction in the technique is critical because if the ball contacts an unprepared head (as in accidental head-ball contacts), the potential for serious injury is possible. To further our understanding of the relationship of heading, head injury and cognitive deficits, we need to: learn more about the actual impact of a ball on the head, verify the exposure to heading at all ages and competitive levels, determine stable estimates of concussive injury rates across the soccer spectrum, conduct prospective longitudinal studies on soccer players focusing on exposure, injury and cognition, and determine the minimum safe age to begin instruction on the skill of heading. Only then will we be able to speak with some authority on the issue of heading and head injuries in soccer. [References: 62]},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Kernick, D P
Heading in soccer--time for a rethink? Journal Article
In: British Journal of General Practice, vol. 49, pp. 171, 1999.
@article{Kernick1999,
title = {Heading in soccer--time for a rethink?},
author = {Kernick, D P},
year = {1999},
date = {1999-01-01},
journal = {British Journal of General Practice},
volume = {49},
pages = {171},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Kent, H
Ball rolling on research into heading injuries Journal Article
In: CMAJ Canadian Medical Association Journal, vol. 161, pp. 1434, 1999.
@article{Kent1999,
title = {Ball rolling on research into heading injuries},
author = {Kent, H},
year = {1999},
date = {1999-01-01},
journal = {CMAJ Canadian Medical Association Journal},
volume = {161},
pages = {1434},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Green, G A; Jordan, S E
Are brain injuries a significant problem in soccer? Journal Article
In: Clinics in Sports Medicine, vol. 17, pp. 795–809, 1998.
Abstract | BibTeX | Tags: Soccer
@article{Green1998,
title = {Are brain injuries a significant problem in soccer?},
author = {Green, G A and Jordan, S E},
year = {1998},
date = {1998-01-01},
journal = {Clinics in Sports Medicine},
volume = {17},
pages = {795--809},
address = {Department of Family Medicine, University of California at Los Angeles, USA. GGREEN@MedNet.ucla.edu},
abstract = {This article examines the types of forces that the brain is subjected to in soccer, secondary to both acute brain injury and repetitive heading of the ball. The incidence of acute brain injury is reviewed, as well as studies documenting the effects of heading the ball. Finally, 10 actions are proposed that would make soccer a safer sport with respect to brain injuries and provide avenues for further study in this area.},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Baroff, G S
Is heading a soccer ball injurious to brain function? Journal Article
In: Journal of Head Trauma Rehabilitation, vol. 13, pp. 45–52, 1998.
Abstract | BibTeX | Tags: Soccer
@article{Baroff1998,
title = {Is heading a soccer ball injurious to brain function?},
author = {Baroff, G S},
year = {1998},
date = {1998-01-01},
journal = {Journal of Head Trauma Rehabilitation},
volume = {13},
pages = {45--52},
address = {Developmental Disabilities Training Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3370, USA.},
abstract = {With the growing popularity of soccer both in the United States and worldwide, reports of adverse effects of 'heading' on brain function are a source of concern. This article reviews the related research literature on neurologic and neuropsychological findings. Neurologic and neuropsychological abnormalities have been reported in a significant minority of older former professional players in Norway. Purportedly unrelated to age, the most prominent findings were cerebral atrophy and impairment on intelligence test abilities that are particularly vulnerable to brain damage. Also noteworthy in these retired players were persistent physical, cognitive, and emotional complaints consistent with a postconcussive syndrome. Younger amateur players appear to be free of major abnormalities, although some report persistent difficulties with memory and concentration. The severity of these complaints may be related to a history of soccer-related head injuries and not necessarily specific to heading. Research findings specific to heading are not more than suggestive at best, and clarification of the risks of heading a soccer ball awaits more definitive studies. [References: 20]},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Tysvaer, A; Storli, O
Association football injuries to the brain. A preliminary report Journal Article
In: British Journal of Sports Medicine, vol. 15, pp. 163–166, 1981.
Abstract | BibTeX | Tags: Soccer
@article{Tysvaer1981,
title = {Association football injuries to the brain. A preliminary report},
author = {Tysvaer, A and Storli, O},
year = {1981},
date = {1981-01-01},
journal = {British Journal of Sports Medicine},
volume = {15},
pages = {163--166},
abstract = {In 1975 the authors sent a questionnaire to all players in the Norwegian First Division League Clubs to record the incidence of head injuries due to heading. The conclusion of the questionnaire is that there seems to be a low percentage of serious head injuries. None of the players had been operated on for epi- or subdural hematoma or other brain damage and only a few have had concussion due to heading. In sixty per cent of the players a full neurological examination and EEG recording was undertaken. The result of these studies will be published in a subsequent article.},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Reider, Bruce
Activating the Omega 13 Journal Article
In: American Journal of Sports Medicine, vol. 45, no. 2, pp. 275–277, 2017, ISBN: 03635465.
@article{Reider2017,
title = {Activating the Omega 13},
author = {Reider, Bruce},
doi = {10.1177/0363546517690145},
isbn = {03635465},
year = {2017},
date = {2017-01-01},
journal = {American Journal of Sports Medicine},
volume = {45},
number = {2},
pages = {275--277},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Zusman, E E; Zopfi, P; Kuluva, J; Zuckerman, S
Can Ideas From United States Youth Sports Reduce Judo-Related Head Injuries in Japan? Journal Article
In: World Neurosurgery, vol. 97, pp. 725–727, 2017.
@article{Zusman2017,
title = {Can Ideas From United States Youth Sports Reduce Judo-Related Head Injuries in Japan?},
author = {Zusman, E E and Zopfi, P and Kuluva, J and Zuckerman, S},
doi = {10.1016/j.wneu.2016.05.096},
year = {2017},
date = {2017-01-01},
journal = {World Neurosurgery},
volume = {97},
pages = {725--727},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hwang, Sungjae; Ma, Lei; Kawata, Keisuke; Tierney, Ryan; Jeka, John J
Vestibular dysfunction after subconcussive head impact Journal Article
In: Journal of Neurotrauma, vol. 34, no. 1, pp. 8–15, 2017, ISBN: 0897-7151 1557-9042.
@article{Hwang2017,
title = {Vestibular dysfunction after subconcussive head impact},
author = {Hwang, Sungjae and Ma, Lei and Kawata, Keisuke and Tierney, Ryan and Jeka, John J},
doi = {10.1089/neu.2015.4238},
isbn = {0897-7151
1557-9042},
year = {2017},
date = {2017-01-01},
journal = {Journal of Neurotrauma},
volume = {34},
number = {1},
pages = {8--15},
publisher = {Mary Ann Liebert, Inc.},
address = {US},
abstract = {Current thinking views mild head impact (i.e., subconcussion) as an underrecognized phenomenon that has the ability to cause significant current and future detrimental neurological effects. Repeated mild impacts to the head, however, often display no observable behavioral deficits based on standard clinical tests, which may lack sensitivity. The current study investigates the effects of subconcussive impacts from soccer heading with innovative measures of vestibular function and walking stability in a pre- 0\textendash2 h, post- 24 h post-heading repeated measures design. The heading group (n = 10) executed 10 headers with soccer balls projected at a velocity of 25 mph (11.2 m/sec) over 10 min. Subjects were evaluated 24 h before, immediately after, and 24 h after soccer heading with: the modified Balance Error Scoring System (mBESS); a walking stability task with visual feedback of trunk movement; and galvanic vestibular stimulation (GVS) while standing with eyes closed on foam. A control group (n = 10) followed the same protocol with no heading. The results showed significant decrease in trunk angle, leg angle gain, and center of mass gain relative to GVS for the heading group compared with controls. Medial-lateral trunk orientation displacement and velocity during treadmill walking increased immediately after mild head impact for the heading group compared with controls. Controls showed an improvement in mBESS scores over time, indicating a learning effect, which was not observed with the heading group. These results suggest that mild head impact leads to a transient dysfunction in vestibular processing, which deters walking stability during task performance. (PsycINFO Database Record (c) 2017 APA, all rights reserved)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Caccese, J B; Lamond, L C; Buckley, T A; Kaminski, T W
Reducing purposeful headers from goal kicks and punts may reduce cumulative exposure to head acceleration Journal Article
In: Research in Sports Medicine, vol. 24, no. 4, pp. 407–415, 2016.
@article{Caccese2016b,
title = {Reducing purposeful headers from goal kicks and punts may reduce cumulative exposure to head acceleration},
author = {Caccese, J B and Lamond, L C and Buckley, T A and Kaminski, T W},
doi = {10.1080/15438627.2016.1230549},
year = {2016},
date = {2016-01-01},
journal = {Research in Sports Medicine},
volume = {24},
number = {4},
pages = {407--415},
abstract = {The purpose of this study was to measure peak linear and rotational head acceleration in women’s collegiate soccer and explore the variations in acceleration across different strategic scenarios. Game videos from 14 games were used to identify the strategic scenario in which the athlete headed the ball. Strategic scenarios included: bounce, secondary header, punt, throw-in, goal kick, corner kick, and kick. Peak linear and rotational accelerations were measured using the Smart Impact Monitor (Triax Technologies Inc., Norwalk, CT). Goal kick (38.8 ± 19.4 g, p = 0.001, \ss = 8.9; 9.3 ± 3.9 krad/s2, p = 0.004, \ss = 1.9) and punt (36.0 ± 15.1 g, p = 0.055, \ss = 6.3; 10.1 ± 4.8 krad/s2, p = 0.002, \ss = 2.5) impacts resulted in higher linear and rotational head accelerations than the base variable, kick (30.0 ± 19.5 g; 7.5 ± 4.1 krad/s2). This suggests that limiting headers from goal kicks and punts in younger athletes who are still learning proper heading technique may limit cumulative linear and rotational accelerations. © 2016 Informa UK Limited, trading as Taylor \& Francis Group.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Svaldi, Diana O; McCuen, Emily C; Joshi, Chetas; Robinson, Meghan E; Nho, Yeseul; Hannemann, Robert; Nauman, Eric A; Leverenz, Larry J; Talavage, Thomas M
Cerebrovascular reactivity changes in asymptomatic female athletes attributable to high school soccer participation Journal Article
In: Brain Imaging & Behavior, 2016, ISBN: 1931-7557.
@article{Svaldi2016,
title = {Cerebrovascular reactivity changes in asymptomatic female athletes attributable to high school soccer participation},
author = {Svaldi, Diana O and McCuen, Emily C and Joshi, Chetas and Robinson, Meghan E and Nho, Yeseul and Hannemann, Robert and Nauman, Eric A and Leverenz, Larry J and Talavage, Thomas M},
doi = {10.1007/s11682-016-9509-6},
isbn = {1931-7557},
year = {2016},
date = {2016-01-01},
journal = {Brain Imaging \& Behavior},
publisher = {Springer},
address = {Germany},
abstract = {As participation in women’s soccer continues to grow and the longevity of female athletes’ careers continues to increase, prevention and care for mTBI in women’s soccer has become a major concern for female athletes since the long-term risks associated with a history of mTBI are well documented. Among women’s sports, soccer exhibits among the highest concussion rates, on par with those of men’s football at the collegiate level. Head impact monitoring technology has revealed that 'concussive hits' occurring directly before symptomatic injury are not predictive of mTBI, suggesting that the cumulative effect of repetitive head impacts experienced by collision sport athletes should be assessed. Neuroimaging biomarkers have proven to be valuable in detecting brain changes that occur before neurocognitive symptoms in collision sport athletes. Quantifying the relationship between changes in these biomarkers and head impacts experienced by female soccer athletes may prove valuable to developing preventative measures for mTBI. This study paired functional magnetic resonance imaging with head impact monitoring to track cerebrovascular reactivity changes throughout a season and to test whether the observed changes could be attributed to mechanical loading experienced by female athletes participating in high school soccer. Marked cerebrovascular reactivity changes were observed in female soccer athletes, relative both to non-collision sport control measures and pre-season measures and were localized to fronto-temporal aspects of the brain. These changes persisted 4\textendash5 months after the season ended and recovered by 8 months after the season. Segregation of the total soccer cohort into cumulative loading groups revealed that population-level changes were driven by athletes experiencing high cumulative loads, although athletes experiencing lower cumulative loads still contributed to group changes. The results of this study imply a non-linear relationship between cumulative loading and cerebrovascular changes with a threshold, above which the risk, of injury likely increases significantly. (PsycINFO Database Record (c) 2016 APA, all rights reserved)},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Andelinović, M; Titlić, M; Andelinović, D
Functional Changes of P300 Values among Young Football Players as a Measure of a Cognitive Function Journal Article
In: Collegium antropologicum, vol. 39, no. 3, pp. 641–645, 2015.
@article{Andelinovic2015,
title = {Functional Changes of P300 Values among Young Football Players as a Measure of a Cognitive Function},
author = {Andelinovi\'{c}, M and Titli\'{c}, M and Andelinovi\'{c}, D},
year = {2015},
date = {2015-01-01},
journal = {Collegium antropologicum},
volume = {39},
number = {3},
pages = {641--645},
abstract = {Numerous studies have shown that evaluation of evoked potentials (EP) is an excellent estimation tool for a cognitive function. During daily practices footballers are exposed to headers that can leave mild head traumas. In this study, young footballers were examined, while the control group included their coevals who don't practice contact sports. Results of the study have shown that footballers have longer latency value of the P300 wave when target stimulus is presented on N1, N2 and P3, but not on P2. Also, they have longer latency values when non-target stimulus is presented. Amplitude values of target stimulus are not different, but footballers have lower amplitudes of non-target stimulus. This study suggests that EP evaluation method can be used to detect first and mild changes of the brain function.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Ellis, M J; Cordingley, D; Vis, S; Reimer, K; Leiter, J; Russell, K
Vestibulo-ocular dysfunction in pediatric sports-related concussion Journal Article
In: Journal of Neurosurgery: Pediatrics, vol. 16, no. 3, pp. 248–255, 2015.
@article{Ellis2015,
title = {Vestibulo-ocular dysfunction in pediatric sports-related concussion},
author = {Ellis, M J and Cordingley, D and Vis, S and Reimer, K and Leiter, J and Russell, K},
doi = {10.3171/2015.1.PEDS14524},
year = {2015},
date = {2015-01-01},
journal = {Journal of Neurosurgery: Pediatrics},
volume = {16},
number = {3},
pages = {248--255},
abstract = {Object The objective of this study was 2-fold: 1) to examine the prevalence of vestibulo-ocular dysfunction (VOD) among children and adolescents with acute sports-related concussion (SRC) and postconcussion syndrome (PCS) who were referred to a multidisciplinary pediatric concussion program; and 2) to determine if VOD is associated with the development of PCS in this cohort. Methods The authors conducted a retrospective review of all patients with acute SRC (presenting 30 days or less postinjury) and PCS (3 or more symptoms for at least 1 month) referred to a multidisciplinary pediatric concussion program between September 2013 and July 2014. Initial assessment included clinical history, physical examination, and Post-Concussion Symptom Scale assessment. Patients were also assessed for VOD, which was defined as more than one subjective vestibular and oculomotor complaint (dizziness, blurred vision, and so on) and more than one objective physical examination finding (abnormal smooth pursuits, saccades, vestibulo-ocular reflex, and so on). This study was approved by the local institutional ethics review board. Results A total of 101 patients (mean age 14.2 years, SD 2.3 years; 63 male and 38 female patients) participated, including 77 (76.2%) with acute SRC and 24 (23.8%) with PCS. Twenty-two of the 77 patients (28.6%) with acute SRC and 15 of the 24 (62.5%) with PCS met the clinical criteria for VOD. The median duration of symptoms was 40 days (interquartile range [IQR] 28.5-54 days) for patients with acute SRC who had VOD compared with 21 days (IQR 13-32 days) for those without VOD (p = 0.0001). There was a statistically significant increase in the adjusted odds of developing PCS among patients with acute SRC who had VOD compared with those without VOD (adjusted OR 4.10; 95% CI 1.04-16.16). Conclusions Evidence of VOD was detected in a significant proportion of children and adolescents with acute SRC and PCS who were referred to a multidisciplinary pediatric concussion program. This clinical feature was a significant risk factor for the subsequent development of PCS in this pediatric acute SRC cohort. © AANS, 2015.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Edlow, B L; Hinson, H E
Blowing the whistle on sports concussions Journal Article
In: Neurology, vol. 85, no. 17, pp. 1442–1443, 2015.
@article{Edlow2015,
title = {Blowing the whistle on sports concussions},
author = {Edlow, B L and Hinson, H E},
doi = {10.1212/WNL.0000000000001902},
year = {2015},
date = {2015-01-01},
journal = {Neurology},
volume = {85},
number = {17},
pages = {1442--1443},
abstract = {On March 13, 2015, Chris Borland, a star rookie linebacker on the San Francisco 49ers, announced his early retirement from professional football, citing concerns about chronic traumatic encephalopathy (CTE). Borland, who had a history of 2 diagnosed concussions, walked away from a multi-million-dollar contract and potential sports superstardom, explaining that "from what I've researched and what I've experienced, I don't think it's worth the risk." 1 Perhaps just as surprising as Borland's announcement was the support he received from teammates and other athletes-support that reflects a growing recognition in the athletic community that repetitive head trauma may be associated with CTE and other forms of dementia. 2 Indeed, in a recent legal settlement, the National Football League estimated that approximately 30% of its former players will develop dementia. At the high school and college levels, state legislatures and universities have enacted limits to the number of full-contact practices, citing similar concerns about concussions. These developments have prompted a societal conversation about the risks of contact sports. © 2015 American Academy of Neurology.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Keishiro, Narimatsu; Tomotaka, Takeda; Kazunori, Nakajima; Michiyo, Konno; Takamitsu, Ozawa; Keiichi, Ishigami
Effect of clenching with a mouthguard on head acceleration during heading of a soccer ball Journal Article
In: General Dentistry, vol. 63, no. 6, pp. 41–47, 2015, ISBN: 0363-6771.
@article{Keishiro2015,
title = {Effect of clenching with a mouthguard on head acceleration during heading of a soccer ball},
author = {Keishiro, Narimatsu and Tomotaka, Takeda and Kazunori, Nakajima and Michiyo, Konno and Takamitsu, Ozawa and Keiichi, Ishigami},
isbn = {0363-6771},
year = {2015},
date = {2015-01-01},
journal = {General Dentistry},
volume = {63},
number = {6},
pages = {41--47},
publisher = {Academy of General Dentistry},
address = {Chicago, Illinois},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Marinides, Z; Galetta, K M; Andrews, C N; Wilson, J A; Herman, D C; Robinson, C D; Smith, M S; Bentley, B C; Galetta, S L; Balcer, L J; Clugston, J R
Vision testing is additive to the sideline assessment of sports-related concussion Journal Article
In: Neurology: Clinical Practice, vol. 5, no. 1, pp. 25–34, 2015.
@article{Marinides2015,
title = {Vision testing is additive to the sideline assessment of sports-related concussion},
author = {Marinides, Z and Galetta, K M and Andrews, C N and Wilson, J A and Herman, D C and Robinson, C D and Smith, M S and Bentley, B C and Galetta, S L and Balcer, L J and Clugston, J R},
doi = {10.1212/CPJ.0000000000000060},
year = {2015},
date = {2015-01-01},
journal = {Neurology: Clinical Practice},
volume = {5},
number = {1},
pages = {25--34},
abstract = {We examined the King-Devick (K-D) test, a vision-based test of rapid number naming, as a complement to components of the Sport Concussion Assessment Tool, 3rd edition (SCAT3) for diagnosis of concussion. Baseline and postconcussion data for the University of Florida men's football, women's soccer, and women's lacrosse teams were collected, including the K-D test, Standardized Assessment of Concussion (SAC), and Balance Error Scoring System (BESS). Among 30 athletes with first concussion during their athletic season (n 5 217 total), differences from baseline to postinjury showed worsening of K-D time scores in 79%, while SAC showed a ≥2- point worsening in 52%. Combining K-D and SAC captured abnormalities in 89%; adding the BESS identified 100% of concussions. Adding a vision-based test may enhance the detection of athletes with concussion. © 2015 American Academy of Neurology.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Meehan, W P; Jordaan, M; Prabhu, S P; Carew, L; Mannix, R C; Proctor, M R
Risk of athletes with chiari malformations suffering catastrophic injuries during sports participation is low Journal Article
In: Clinical Journal of Sport Medicine, vol. 25, no. 2, pp. 133–137, 2015.
@article{Meehan2015,
title = {Risk of athletes with chiari malformations suffering catastrophic injuries during sports participation is low},
author = {Meehan, W P and Jordaan, M and Prabhu, S P and Carew, L and Mannix, R C and Proctor, M R},
doi = {10.1097/JSM.0000000000000107},
year = {2015},
date = {2015-01-01},
journal = {Clinical Journal of Sport Medicine},
volume = {25},
number = {2},
pages = {133--137},
abstract = {Objective: To estimate the risk of athletes with Chiari malformations sustaining a catastrophic injury. Design: Retrospective, descriptive cohort study. Participants: All patients diagnosed with Chiari malformation at our institution between June 2008 and November 2011. Assessment of Risk Factors: Participants were mailed a questionnaire regarding the number of seasons they participated in organized athletics. Magnetic resonance images were reviewed to describe the characteristics of respondent's Chiari malformations. Main Outcome Measures: Whether or not the patient had sustained an injury resulting in death, coma, or paralysis. Results: We had a 53% (N = 147) response rate. Respondents were of a mean age of 15 years (SD, 2 years) at the time of diagnosis. The mean length of protrusion of the cerebellar tonsils below the foramen magnum was 11.2 mm (SD, 5.7 mm). Most of the respondents had pointed cerebellar tonsils and some degree of crowding within the foramen magnum. During a total of 1627 athletic seasons played by patients with Chiari malformation, 0 respondents [95% confidence interval (CI), 0.0000-0.0023] sustained an injury resulting in death, coma, or paralysis. Likewise, during 191 collision sport athletic seasons, 0 (95% CI, 0.0000-0.0191) respondents sustained an injury resulting in death, coma, or paralysis. Conclusions: The risk of athletes with Chiari malformations suffering catastrophic injuries during sports participation is low. This estimate of risk should be considered when making return-toplay decisions. Given the variability of anatomical consideration for patients with Chiari malformations, however, each return-to-play decision must continue to be made on a case-by-case basis, considering all of the available information. Clinical Relevance: The low risk of athletes with Chiari malformations suffering catastrophic injuries in sports should be considered when making return-to-play decisions. © 2014 Wolters Kluwer Health, Inc. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Kerr, Hamish A; Mjaanes, Jeffrey M
Concerns about concussion rates in female youth soccer...JAMA Pediatr. 2014 Mar;168(3):258-64 Journal Article
In: JAMA Pediatr, vol. 168, no. 10, pp. 967–968, 2014, ISBN: 2168-6203.
@article{Kerr2014,
title = {Concerns about concussion rates in female youth soccer...JAMA Pediatr. 2014 Mar;168(3):258-64},
author = {Kerr, Hamish A and Mjaanes, Jeffrey M},
doi = {10.1001/jamapediatrics.2014.783},
isbn = {2168-6203},
year = {2014},
date = {2014-01-01},
journal = {JAMA Pediatr},
volume = {168},
number = {10},
pages = {967--968},
publisher = {American Medical Association},
address = {Chicago, Illinois},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Buzas, David; Jacobson, Nathan A; Morawa, Lawrence G
Concussions From 9 Youth Organized Sports: Results From NEISS Hospitals Over an 11-Year Time Frame, 2002-2012 Journal Article
In: Orthopaedic Journal of Sports Medicine, pp. 1–8, 2014.
@article{Buzas2014,
title = {Concussions From 9 Youth Organized Sports: Results From NEISS Hospitals Over an 11-Year Time Frame, 2002-2012},
author = {Buzas, David and Jacobson, Nathan A and Morawa, Lawrence G},
doi = {10.1177/2325967114528460},
year = {2014},
date = {2014-01-01},
journal = {Orthopaedic Journal of Sports Medicine},
pages = {1--8},
publisher = {Sage Publications Inc.},
address = {Thousand Oaks, California},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Straume-Naesheim, Truls M; Andersen, Thor Einar; K Holme, Ingar Morten; McIntosh, Andrew S; Dvorak, Jiri; Bahr, Roald
Do minor head impacts in soccer cause concussive injury? A prospective case-control study Journal Article
In: Neurosurgery, vol. 64, pp. 719–25; discussion 725, 2009.
@article{Straume-Naesheim2009,
title = {Do minor head impacts in soccer cause concussive injury? A prospective case-control study},
author = {Straume-Naesheim, Truls M and Andersen, Thor Einar and {K Holme}, Ingar Morten and McIntosh, Andrew S and Dvorak, Jiri and Bahr, Roald},
year = {2009},
date = {2009-01-01},
journal = {Neurosurgery},
volume = {64},
pages = {719--25; discussion 725},
address = {Department of Sports Medicine, Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway. truls.straume-nesheim@nih.no},
abstract = {OBJECTIVE: Our objective was to determine whether minor head trauma in elite soccer matches causes measurable impairment in brain function. METHODS: Baseline neuropsychological testing was completed by professional soccer players in the Norwegian elite league, Tippeligaen, before the 2004 and 2005 seasons (n = 462). A player who experienced a head impact during a league match completed a follow-up test the next day (head impact group). Videotapes of all impacts were collected and reviewed. A group of players without head impacts was also tested after a league match to serve as controls (matched control group; n = 47). RESULTS: A total of 228 impacts were identified, and 44 (19.3%) of these were followed up with a CogSport test (CogState, Ltd., Charlton South, Australia; the players who were tested tended to have more severe injuries, but there were only 6 cases with loss of consciousness). The head impact group had a greater change in reaction time from baseline to follow-up compared with the matched control group with regard to the 3 simplest tasks. The largest deficits were seen among the players reporting acute symptoms after the impact, but deficits were also demonstrated among asymptomatic players. Players who experienced 1 or more head impacts during the 2004 season showed a reduction in neuropsychological performance when tested before the 2005 season. However, none of these players was impaired when compared with the test manufacturer's normative data. CONCLUSION: A reduced neuropsychological performance was found after minor head impacts in soccer, even in allegedly asymptomatic players. However, the long-term cognitive consequences are uncertain.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
McCrory, Paul R
Brain injury and heading in soccer Journal Article
In: BMJ, vol. 327, pp. 351–352, 2003.
@article{McCrory2003,
title = {Brain injury and heading in soccer},
author = {McCrory, Paul R},
year = {2003},
date = {2003-01-01},
journal = {BMJ},
volume = {327},
pages = {351--352},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Naunheim, Rosanne S; Standeven, John; Bayly, Philip
Cumulative effects of soccer heading are not fully known Journal Article
In: BMJ, vol. 327, pp. 1168, 2003.
@article{Naunheim2003,
title = {Cumulative effects of soccer heading are not fully known},
author = {Naunheim, Rosanne S and Standeven, John and Bayly, Philip},
year = {2003},
date = {2003-01-01},
journal = {BMJ},
volume = {327},
pages = {1168},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Kirkendall, D T; Jordan, S E; Garrett, W E
Heading and head injuries in soccer Journal Article
In: Sports Medicine, vol. 31, pp. 369–386, 2001.
@article{Kirkendall2001,
title = {Heading and head injuries in soccer},
author = {Kirkendall, D T and Jordan, S E and Garrett, W E},
year = {2001},
date = {2001-01-01},
journal = {Sports Medicine},
volume = {31},
pages = {369--386},
address = {United States Soccer Federation, Chicago, Illinois, USA.},
abstract = {In the world of sports, soccer is unique because of the purposeful use of the unprotected head for controlling and advancing the ball. This skill obviously places the player at risk of head injury and the game does carry some risk. Head injury can be a result of contact of the head with another head (or other body parts), ground, goal post, other unknown objects or even the ball. Such impacts can lead to contusions, fractures, eye injuries, concussions or even, in rare cases, death. Coaches, players, parents and physicians are rightly concerned about the risk of head injury in soccer. Current research shows that selected soccer players have some degree of cognitive dysfunction. It is important to determine the reasons behind such deficits. Purposeful heading has been blamed, but a closer look at the studies that focus on heading has revealed methodological concerns that question the validity of blaming purposeful heading of the ball. The player's history and age (did they play when the ball was leather and could absorb significant amounts of water), alcohol intake, drug intake, learning disabilities, concussion definition and control group use/composition are all factors that cloud the ability to blame purposeful heading. What does seem clear is that a player's history of concussive episodes is a more likely explanation for cognitive deficits. While it is likely that the subconcussive impact of purposeful heading is a doubtful factor in the noted deficits, it is unknown whether multiple subconcussive impacts might have some lingering effects. In addition, it is unknown whether the noted deficits have any affect on daily life. Proper instruction in the technique is critical because if the ball contacts an unprepared head (as in accidental head-ball contacts), the potential for serious injury is possible. To further our understanding of the relationship of heading, head injury and cognitive deficits, we need to: learn more about the actual impact of a ball on the head, verify the exposure to heading at all ages and competitive levels, determine stable estimates of concussive injury rates across the soccer spectrum, conduct prospective longitudinal studies on soccer players focusing on exposure, injury and cognition, and determine the minimum safe age to begin instruction on the skill of heading. Only then will we be able to speak with some authority on the issue of heading and head injuries in soccer. [References: 62]},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Kernick, D P
Heading in soccer--time for a rethink? Journal Article
In: British Journal of General Practice, vol. 49, pp. 171, 1999.
@article{Kernick1999,
title = {Heading in soccer--time for a rethink?},
author = {Kernick, D P},
year = {1999},
date = {1999-01-01},
journal = {British Journal of General Practice},
volume = {49},
pages = {171},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Kent, H
Ball rolling on research into heading injuries Journal Article
In: CMAJ Canadian Medical Association Journal, vol. 161, pp. 1434, 1999.
@article{Kent1999,
title = {Ball rolling on research into heading injuries},
author = {Kent, H},
year = {1999},
date = {1999-01-01},
journal = {CMAJ Canadian Medical Association Journal},
volume = {161},
pages = {1434},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Green, G A; Jordan, S E
Are brain injuries a significant problem in soccer? Journal Article
In: Clinics in Sports Medicine, vol. 17, pp. 795–809, 1998.
@article{Green1998,
title = {Are brain injuries a significant problem in soccer?},
author = {Green, G A and Jordan, S E},
year = {1998},
date = {1998-01-01},
journal = {Clinics in Sports Medicine},
volume = {17},
pages = {795--809},
address = {Department of Family Medicine, University of California at Los Angeles, USA. GGREEN@MedNet.ucla.edu},
abstract = {This article examines the types of forces that the brain is subjected to in soccer, secondary to both acute brain injury and repetitive heading of the ball. The incidence of acute brain injury is reviewed, as well as studies documenting the effects of heading the ball. Finally, 10 actions are proposed that would make soccer a safer sport with respect to brain injuries and provide avenues for further study in this area.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Reider, Bruce
Activating the Omega 13 Journal Article
In: American Journal of Sports Medicine, vol. 45, no. 2, pp. 275–277, 2017, ISBN: 03635465.
Links | BibTeX | Tags: ACL tear, Concussion, female athlete triad, football, Injury prevention, rugby, Soccer
@article{Reider2017,
title = {Activating the Omega 13},
author = {Reider, Bruce},
doi = {10.1177/0363546517690145},
isbn = {03635465},
year = {2017},
date = {2017-01-01},
journal = {American Journal of Sports Medicine},
volume = {45},
number = {2},
pages = {275--277},
keywords = {ACL tear, Concussion, female athlete triad, football, Injury prevention, rugby, Soccer},
pubstate = {published},
tppubtype = {article}
}
Zusman, E E; Zopfi, P; Kuluva, J; Zuckerman, S
Can Ideas From United States Youth Sports Reduce Judo-Related Head Injuries in Japan? Journal Article
In: World Neurosurgery, vol. 97, pp. 725–727, 2017.
Links | BibTeX | Tags: Concussion, head injury, judo, Secondary impact syndrome, Soccer, traumatic brain injury, Youth sports
@article{Zusman2017,
title = {Can Ideas From United States Youth Sports Reduce Judo-Related Head Injuries in Japan?},
author = {Zusman, E E and Zopfi, P and Kuluva, J and Zuckerman, S},
doi = {10.1016/j.wneu.2016.05.096},
year = {2017},
date = {2017-01-01},
journal = {World Neurosurgery},
volume = {97},
pages = {725--727},
keywords = {Concussion, head injury, judo, Secondary impact syndrome, Soccer, traumatic brain injury, Youth sports},
pubstate = {published},
tppubtype = {article}
}
Hwang, Sungjae; Ma, Lei; Kawata, Keisuke; Tierney, Ryan; Jeka, John J
Vestibular dysfunction after subconcussive head impact Journal Article
In: Journal of Neurotrauma, vol. 34, no. 1, pp. 8–15, 2017, ISBN: 0897-7151 1557-9042.
Abstract | Links | BibTeX | Tags: 2017, BEHAVIORAL assessment, Behavioral assessments, Head trauma, Human studies, Outcome measures, Sensory Feedback, sensory function, Soccer, traumatic brain injury
@article{Hwang2017,
title = {Vestibular dysfunction after subconcussive head impact},
author = {Hwang, Sungjae and Ma, Lei and Kawata, Keisuke and Tierney, Ryan and Jeka, John J},
doi = {10.1089/neu.2015.4238},
isbn = {0897-7151
1557-9042},
year = {2017},
date = {2017-01-01},
journal = {Journal of Neurotrauma},
volume = {34},
number = {1},
pages = {8--15},
publisher = {Mary Ann Liebert, Inc.},
address = {US},
abstract = {Current thinking views mild head impact (i.e., subconcussion) as an underrecognized phenomenon that has the ability to cause significant current and future detrimental neurological effects. Repeated mild impacts to the head, however, often display no observable behavioral deficits based on standard clinical tests, which may lack sensitivity. The current study investigates the effects of subconcussive impacts from soccer heading with innovative measures of vestibular function and walking stability in a pre- 0\textendash2 h, post- 24 h post-heading repeated measures design. The heading group (n = 10) executed 10 headers with soccer balls projected at a velocity of 25 mph (11.2 m/sec) over 10 min. Subjects were evaluated 24 h before, immediately after, and 24 h after soccer heading with: the modified Balance Error Scoring System (mBESS); a walking stability task with visual feedback of trunk movement; and galvanic vestibular stimulation (GVS) while standing with eyes closed on foam. A control group (n = 10) followed the same protocol with no heading. The results showed significant decrease in trunk angle, leg angle gain, and center of mass gain relative to GVS for the heading group compared with controls. Medial-lateral trunk orientation displacement and velocity during treadmill walking increased immediately after mild head impact for the heading group compared with controls. Controls showed an improvement in mBESS scores over time, indicating a learning effect, which was not observed with the heading group. These results suggest that mild head impact leads to a transient dysfunction in vestibular processing, which deters walking stability during task performance. (PsycINFO Database Record (c) 2017 APA, all rights reserved)},
keywords = {2017, BEHAVIORAL assessment, Behavioral assessments, Head trauma, Human studies, Outcome measures, Sensory Feedback, sensory function, Soccer, traumatic brain injury},
pubstate = {published},
tppubtype = {article}
}
Caccese, J B; Lamond, L C; Buckley, T A; Kaminski, T W
Reducing purposeful headers from goal kicks and punts may reduce cumulative exposure to head acceleration Journal Article
In: Research in Sports Medicine, vol. 24, no. 4, pp. 407–415, 2016.
Abstract | Links | BibTeX | Tags: Concussion, Repetitive head impacts, Soccer, subconcussion
@article{Caccese2016b,
title = {Reducing purposeful headers from goal kicks and punts may reduce cumulative exposure to head acceleration},
author = {Caccese, J B and Lamond, L C and Buckley, T A and Kaminski, T W},
doi = {10.1080/15438627.2016.1230549},
year = {2016},
date = {2016-01-01},
journal = {Research in Sports Medicine},
volume = {24},
number = {4},
pages = {407--415},
abstract = {The purpose of this study was to measure peak linear and rotational head acceleration in women’s collegiate soccer and explore the variations in acceleration across different strategic scenarios. Game videos from 14 games were used to identify the strategic scenario in which the athlete headed the ball. Strategic scenarios included: bounce, secondary header, punt, throw-in, goal kick, corner kick, and kick. Peak linear and rotational accelerations were measured using the Smart Impact Monitor (Triax Technologies Inc., Norwalk, CT). Goal kick (38.8 ± 19.4 g, p = 0.001, \ss = 8.9; 9.3 ± 3.9 krad/s2, p = 0.004, \ss = 1.9) and punt (36.0 ± 15.1 g, p = 0.055, \ss = 6.3; 10.1 ± 4.8 krad/s2, p = 0.002, \ss = 2.5) impacts resulted in higher linear and rotational head accelerations than the base variable, kick (30.0 ± 19.5 g; 7.5 ± 4.1 krad/s2). This suggests that limiting headers from goal kicks and punts in younger athletes who are still learning proper heading technique may limit cumulative linear and rotational accelerations. © 2016 Informa UK Limited, trading as Taylor \& Francis Group.},
keywords = {Concussion, Repetitive head impacts, Soccer, subconcussion},
pubstate = {published},
tppubtype = {article}
}
Svaldi, Diana O; McCuen, Emily C; Joshi, Chetas; Robinson, Meghan E; Nho, Yeseul; Hannemann, Robert; Nauman, Eric A; Leverenz, Larry J; Talavage, Thomas M
Cerebrovascular reactivity changes in asymptomatic female athletes attributable to high school soccer participation Journal Article
In: Brain Imaging & Behavior, 2016, ISBN: 1931-7557.
Abstract | Links | BibTeX | Tags: 2016, Cerebrovascular reactivity, Collision sports, Head impacts, mild traumatic brain injury, No terms assigned, Soccer
@article{Svaldi2016,
title = {Cerebrovascular reactivity changes in asymptomatic female athletes attributable to high school soccer participation},
author = {Svaldi, Diana O and McCuen, Emily C and Joshi, Chetas and Robinson, Meghan E and Nho, Yeseul and Hannemann, Robert and Nauman, Eric A and Leverenz, Larry J and Talavage, Thomas M},
doi = {10.1007/s11682-016-9509-6},
isbn = {1931-7557},
year = {2016},
date = {2016-01-01},
journal = {Brain Imaging \& Behavior},
publisher = {Springer},
address = {Germany},
abstract = {As participation in women’s soccer continues to grow and the longevity of female athletes’ careers continues to increase, prevention and care for mTBI in women’s soccer has become a major concern for female athletes since the long-term risks associated with a history of mTBI are well documented. Among women’s sports, soccer exhibits among the highest concussion rates, on par with those of men’s football at the collegiate level. Head impact monitoring technology has revealed that 'concussive hits' occurring directly before symptomatic injury are not predictive of mTBI, suggesting that the cumulative effect of repetitive head impacts experienced by collision sport athletes should be assessed. Neuroimaging biomarkers have proven to be valuable in detecting brain changes that occur before neurocognitive symptoms in collision sport athletes. Quantifying the relationship between changes in these biomarkers and head impacts experienced by female soccer athletes may prove valuable to developing preventative measures for mTBI. This study paired functional magnetic resonance imaging with head impact monitoring to track cerebrovascular reactivity changes throughout a season and to test whether the observed changes could be attributed to mechanical loading experienced by female athletes participating in high school soccer. Marked cerebrovascular reactivity changes were observed in female soccer athletes, relative both to non-collision sport control measures and pre-season measures and were localized to fronto-temporal aspects of the brain. These changes persisted 4\textendash5 months after the season ended and recovered by 8 months after the season. Segregation of the total soccer cohort into cumulative loading groups revealed that population-level changes were driven by athletes experiencing high cumulative loads, although athletes experiencing lower cumulative loads still contributed to group changes. The results of this study imply a non-linear relationship between cumulative loading and cerebrovascular changes with a threshold, above which the risk, of injury likely increases significantly. (PsycINFO Database Record (c) 2016 APA, all rights reserved)},
keywords = {2016, Cerebrovascular reactivity, Collision sports, Head impacts, mild traumatic brain injury, No terms assigned, Soccer},
pubstate = {published},
tppubtype = {article}
}
Andelinović, M; Titlić, M; Andelinović, D
Functional Changes of P300 Values among Young Football Players as a Measure of a Cognitive Function Journal Article
In: Collegium antropologicum, vol. 39, no. 3, pp. 641–645, 2015.
Abstract | BibTeX | Tags: Adolescent, brain concussion, cognition, Craniocerebral Trauma, event related potential, Event-Related Potentials, Evoked Potentials, evoked response, head injury, human, Humans, Male, P300, Pathophysiology, PHYSIOLOGY, psychology, reaction time, Soccer
@article{Andelinovic2015,
title = {Functional Changes of P300 Values among Young Football Players as a Measure of a Cognitive Function},
author = {Andelinovi\'{c}, M and Titli\'{c}, M and Andelinovi\'{c}, D},
year = {2015},
date = {2015-01-01},
journal = {Collegium antropologicum},
volume = {39},
number = {3},
pages = {641--645},
abstract = {Numerous studies have shown that evaluation of evoked potentials (EP) is an excellent estimation tool for a cognitive function. During daily practices footballers are exposed to headers that can leave mild head traumas. In this study, young footballers were examined, while the control group included their coevals who don't practice contact sports. Results of the study have shown that footballers have longer latency value of the P300 wave when target stimulus is presented on N1, N2 and P3, but not on P2. Also, they have longer latency values when non-target stimulus is presented. Amplitude values of target stimulus are not different, but footballers have lower amplitudes of non-target stimulus. This study suggests that EP evaluation method can be used to detect first and mild changes of the brain function.},
keywords = {Adolescent, brain concussion, cognition, Craniocerebral Trauma, event related potential, Event-Related Potentials, Evoked Potentials, evoked response, head injury, human, Humans, Male, P300, Pathophysiology, PHYSIOLOGY, psychology, reaction time, Soccer},
pubstate = {published},
tppubtype = {article}
}
Ellis, M J; Cordingley, D; Vis, S; Reimer, K; Leiter, J; Russell, K
Vestibulo-ocular dysfunction in pediatric sports-related concussion Journal Article
In: Journal of Neurosurgery: Pediatrics, vol. 16, no. 3, pp. 248–255, 2015.
Abstract | Links | BibTeX | Tags: Adolescent, amnesia, Article, Athletic Injuries, Baseball, BASKETBALL, blurred vision, brain concussion, CANADA, Child, childhood disease, cohort analysis, complication, Concussion, consultation, controlled study, disease duration, Dizziness, Female, follow up, football, Hockey, human, Humans, interdisciplinary communication, major clinical study, Male, Manitoba, migraine, neuroimaging, neuropsychological test, Neuropsychological Tests, ODDS ratio, Pathophysiology, Pediatric, Physical Examination, physiotherapy, Post-Concussion Syndrome, postconcussion syndrome, Prevalence, priority journal, Reflex, Retrospective Studies, retrospective study, return to sport, saccadic eye movement, skating, skiing, Soccer, sport injury, sport related concussion, Sports-related concussion, Trauma, vestibular physiotherapy, Vestibular therapy, vestibulo ocular dysfunction, Vestibulo-Ocular, Vestibulo-ocular dysfunction, vestibuloocular reflex, VOLLEYBALL, Young Adult, youth sport
@article{Ellis2015,
title = {Vestibulo-ocular dysfunction in pediatric sports-related concussion},
author = {Ellis, M J and Cordingley, D and Vis, S and Reimer, K and Leiter, J and Russell, K},
doi = {10.3171/2015.1.PEDS14524},
year = {2015},
date = {2015-01-01},
journal = {Journal of Neurosurgery: Pediatrics},
volume = {16},
number = {3},
pages = {248--255},
abstract = {Object The objective of this study was 2-fold: 1) to examine the prevalence of vestibulo-ocular dysfunction (VOD) among children and adolescents with acute sports-related concussion (SRC) and postconcussion syndrome (PCS) who were referred to a multidisciplinary pediatric concussion program; and 2) to determine if VOD is associated with the development of PCS in this cohort. Methods The authors conducted a retrospective review of all patients with acute SRC (presenting 30 days or less postinjury) and PCS (3 or more symptoms for at least 1 month) referred to a multidisciplinary pediatric concussion program between September 2013 and July 2014. Initial assessment included clinical history, physical examination, and Post-Concussion Symptom Scale assessment. Patients were also assessed for VOD, which was defined as more than one subjective vestibular and oculomotor complaint (dizziness, blurred vision, and so on) and more than one objective physical examination finding (abnormal smooth pursuits, saccades, vestibulo-ocular reflex, and so on). This study was approved by the local institutional ethics review board. Results A total of 101 patients (mean age 14.2 years, SD 2.3 years; 63 male and 38 female patients) participated, including 77 (76.2%) with acute SRC and 24 (23.8%) with PCS. Twenty-two of the 77 patients (28.6%) with acute SRC and 15 of the 24 (62.5%) with PCS met the clinical criteria for VOD. The median duration of symptoms was 40 days (interquartile range [IQR] 28.5-54 days) for patients with acute SRC who had VOD compared with 21 days (IQR 13-32 days) for those without VOD (p = 0.0001). There was a statistically significant increase in the adjusted odds of developing PCS among patients with acute SRC who had VOD compared with those without VOD (adjusted OR 4.10; 95% CI 1.04-16.16). Conclusions Evidence of VOD was detected in a significant proportion of children and adolescents with acute SRC and PCS who were referred to a multidisciplinary pediatric concussion program. This clinical feature was a significant risk factor for the subsequent development of PCS in this pediatric acute SRC cohort. © AANS, 2015.},
keywords = {Adolescent, amnesia, Article, Athletic Injuries, Baseball, BASKETBALL, blurred vision, brain concussion, CANADA, Child, childhood disease, cohort analysis, complication, Concussion, consultation, controlled study, disease duration, Dizziness, Female, follow up, football, Hockey, human, Humans, interdisciplinary communication, major clinical study, Male, Manitoba, migraine, neuroimaging, neuropsychological test, Neuropsychological Tests, ODDS ratio, Pathophysiology, Pediatric, Physical Examination, physiotherapy, Post-Concussion Syndrome, postconcussion syndrome, Prevalence, priority journal, Reflex, Retrospective Studies, retrospective study, return to sport, saccadic eye movement, skating, skiing, Soccer, sport injury, sport related concussion, Sports-related concussion, Trauma, vestibular physiotherapy, Vestibular therapy, vestibulo ocular dysfunction, Vestibulo-Ocular, Vestibulo-ocular dysfunction, vestibuloocular reflex, VOLLEYBALL, Young Adult, youth sport},
pubstate = {published},
tppubtype = {article}
}
Edlow, B L; Hinson, H E
Blowing the whistle on sports concussions Journal Article
In: Neurology, vol. 85, no. 17, pp. 1442–1443, 2015.
Abstract | Links | BibTeX | Tags: Alzheimer disease, Chronic traumatic encephalopathy, Concussion, contact sport, Diffusion Tensor Imaging, football, functional magnetic resonance imaging, histopathology, Hockey, human, memory disorder, mood disorder, pathogenesis, Pathophysiology, priority journal, Review, rugby, Soccer, sport injury, sports concussion, traumatic brain injury, wrestling
@article{Edlow2015,
title = {Blowing the whistle on sports concussions},
author = {Edlow, B L and Hinson, H E},
doi = {10.1212/WNL.0000000000001902},
year = {2015},
date = {2015-01-01},
journal = {Neurology},
volume = {85},
number = {17},
pages = {1442--1443},
abstract = {On March 13, 2015, Chris Borland, a star rookie linebacker on the San Francisco 49ers, announced his early retirement from professional football, citing concerns about chronic traumatic encephalopathy (CTE). Borland, who had a history of 2 diagnosed concussions, walked away from a multi-million-dollar contract and potential sports superstardom, explaining that "from what I've researched and what I've experienced, I don't think it's worth the risk." 1 Perhaps just as surprising as Borland's announcement was the support he received from teammates and other athletes-support that reflects a growing recognition in the athletic community that repetitive head trauma may be associated with CTE and other forms of dementia. 2 Indeed, in a recent legal settlement, the National Football League estimated that approximately 30% of its former players will develop dementia. At the high school and college levels, state legislatures and universities have enacted limits to the number of full-contact practices, citing similar concerns about concussions. These developments have prompted a societal conversation about the risks of contact sports. © 2015 American Academy of Neurology.},
keywords = {Alzheimer disease, Chronic traumatic encephalopathy, Concussion, contact sport, Diffusion Tensor Imaging, football, functional magnetic resonance imaging, histopathology, Hockey, human, memory disorder, mood disorder, pathogenesis, Pathophysiology, priority journal, Review, rugby, Soccer, sport injury, sports concussion, traumatic brain injury, wrestling},
pubstate = {published},
tppubtype = {article}
}
Keishiro, Narimatsu; Tomotaka, Takeda; Kazunori, Nakajima; Michiyo, Konno; Takamitsu, Ozawa; Keiichi, Ishigami
Effect of clenching with a mouthguard on head acceleration during heading of a soccer ball Journal Article
In: General Dentistry, vol. 63, no. 6, pp. 41–47, 2015, ISBN: 0363-6771.
BibTeX | Tags: ACCELERATION (Physiology), ADOLESCENCE, Athletes, Brain Concussion -- Prevention and Control, Continuing (Credit), Data Analysis Software, DESCRIPTIVE statistics, Education, Head, High School -- United States, human, Male, Masseter Muscle -- Physiology, Mouthguards -- Utilization, muscle contraction, P-Value, Paired T-Tests, Soccer, Sternocleidomastoid Muscles -- Physiology, UNITED States, Waveforms
@article{Keishiro2015,
title = {Effect of clenching with a mouthguard on head acceleration during heading of a soccer ball},
author = {Keishiro, Narimatsu and Tomotaka, Takeda and Kazunori, Nakajima and Michiyo, Konno and Takamitsu, Ozawa and Keiichi, Ishigami},
isbn = {0363-6771},
year = {2015},
date = {2015-01-01},
journal = {General Dentistry},
volume = {63},
number = {6},
pages = {41--47},
publisher = {Academy of General Dentistry},
address = {Chicago, Illinois},
keywords = {ACCELERATION (Physiology), ADOLESCENCE, Athletes, Brain Concussion -- Prevention and Control, Continuing (Credit), Data Analysis Software, DESCRIPTIVE statistics, Education, Head, High School -- United States, human, Male, Masseter Muscle -- Physiology, Mouthguards -- Utilization, muscle contraction, P-Value, Paired T-Tests, Soccer, Sternocleidomastoid Muscles -- Physiology, UNITED States, Waveforms},
pubstate = {published},
tppubtype = {article}
}
Marinides, Z; Galetta, K M; Andrews, C N; Wilson, J A; Herman, D C; Robinson, C D; Smith, M S; Bentley, B C; Galetta, S L; Balcer, L J; Clugston, J R
Vision testing is additive to the sideline assessment of sports-related concussion Journal Article
In: Neurology: Clinical Practice, vol. 5, no. 1, pp. 25–34, 2015.
Abstract | Links | BibTeX | Tags: Article, athlete, Balance Error Scoring System, brain concussion, clinical assessment, Female, football, human, King Devick Test, major clinical study, Male, priority journal, Soccer, sport injury, Standardized Assessment of Concussion, vision test
@article{Marinides2015,
title = {Vision testing is additive to the sideline assessment of sports-related concussion},
author = {Marinides, Z and Galetta, K M and Andrews, C N and Wilson, J A and Herman, D C and Robinson, C D and Smith, M S and Bentley, B C and Galetta, S L and Balcer, L J and Clugston, J R},
doi = {10.1212/CPJ.0000000000000060},
year = {2015},
date = {2015-01-01},
journal = {Neurology: Clinical Practice},
volume = {5},
number = {1},
pages = {25--34},
abstract = {We examined the King-Devick (K-D) test, a vision-based test of rapid number naming, as a complement to components of the Sport Concussion Assessment Tool, 3rd edition (SCAT3) for diagnosis of concussion. Baseline and postconcussion data for the University of Florida men's football, women's soccer, and women's lacrosse teams were collected, including the K-D test, Standardized Assessment of Concussion (SAC), and Balance Error Scoring System (BESS). Among 30 athletes with first concussion during their athletic season (n 5 217 total), differences from baseline to postinjury showed worsening of K-D time scores in 79%, while SAC showed a ≥2- point worsening in 52%. Combining K-D and SAC captured abnormalities in 89%; adding the BESS identified 100% of concussions. Adding a vision-based test may enhance the detection of athletes with concussion. © 2015 American Academy of Neurology.},
keywords = {Article, athlete, Balance Error Scoring System, brain concussion, clinical assessment, Female, football, human, King Devick Test, major clinical study, Male, priority journal, Soccer, sport injury, Standardized Assessment of Concussion, vision test},
pubstate = {published},
tppubtype = {article}
}
Meehan, W P; Jordaan, M; Prabhu, S P; Carew, L; Mannix, R C; Proctor, M R
Risk of athletes with chiari malformations suffering catastrophic injuries during sports participation is low Journal Article
In: Clinical Journal of Sport Medicine, vol. 25, no. 2, pp. 133–137, 2015.
Abstract | Links | BibTeX | Tags: Adolescent, adult, Arnold Chiari malformation, Arnold-Chiari Malformation, Article, athlete, Athletes, Athletic Injuries, BASKETBALL, Brain Injuries, cerebrospinal fluid, cerebrospinal fluid flow, Child, cohort analysis, Cohort Studies, coma, Concussion, Death, descriptive research, digestive tract parameters, Female, football, foramen magnum, human, Humans, ice hockey, Magnetic Resonance Imaging, major clinical study, Male, MORTALITY, nuclear magnetic resonance imaging, paralysis, paresthesia, pathology, patient participation, priority journal, questionnaire, Retrospective Studies, retrospective study, RISK assessment, risk factor, Soccer, sport injury, Surveys and Questionnaires, terminal disease, Young Adult
@article{Meehan2015,
title = {Risk of athletes with chiari malformations suffering catastrophic injuries during sports participation is low},
author = {Meehan, W P and Jordaan, M and Prabhu, S P and Carew, L and Mannix, R C and Proctor, M R},
doi = {10.1097/JSM.0000000000000107},
year = {2015},
date = {2015-01-01},
journal = {Clinical Journal of Sport Medicine},
volume = {25},
number = {2},
pages = {133--137},
abstract = {Objective: To estimate the risk of athletes with Chiari malformations sustaining a catastrophic injury. Design: Retrospective, descriptive cohort study. Participants: All patients diagnosed with Chiari malformation at our institution between June 2008 and November 2011. Assessment of Risk Factors: Participants were mailed a questionnaire regarding the number of seasons they participated in organized athletics. Magnetic resonance images were reviewed to describe the characteristics of respondent's Chiari malformations. Main Outcome Measures: Whether or not the patient had sustained an injury resulting in death, coma, or paralysis. Results: We had a 53% (N = 147) response rate. Respondents were of a mean age of 15 years (SD, 2 years) at the time of diagnosis. The mean length of protrusion of the cerebellar tonsils below the foramen magnum was 11.2 mm (SD, 5.7 mm). Most of the respondents had pointed cerebellar tonsils and some degree of crowding within the foramen magnum. During a total of 1627 athletic seasons played by patients with Chiari malformation, 0 respondents [95% confidence interval (CI), 0.0000-0.0023] sustained an injury resulting in death, coma, or paralysis. Likewise, during 191 collision sport athletic seasons, 0 (95% CI, 0.0000-0.0191) respondents sustained an injury resulting in death, coma, or paralysis. Conclusions: The risk of athletes with Chiari malformations suffering catastrophic injuries during sports participation is low. This estimate of risk should be considered when making return-toplay decisions. Given the variability of anatomical consideration for patients with Chiari malformations, however, each return-to-play decision must continue to be made on a case-by-case basis, considering all of the available information. Clinical Relevance: The low risk of athletes with Chiari malformations suffering catastrophic injuries in sports should be considered when making return-to-play decisions. © 2014 Wolters Kluwer Health, Inc. All rights reserved.},
keywords = {Adolescent, adult, Arnold Chiari malformation, Arnold-Chiari Malformation, Article, athlete, Athletes, Athletic Injuries, BASKETBALL, Brain Injuries, cerebrospinal fluid, cerebrospinal fluid flow, Child, cohort analysis, Cohort Studies, coma, Concussion, Death, descriptive research, digestive tract parameters, Female, football, foramen magnum, human, Humans, ice hockey, Magnetic Resonance Imaging, major clinical study, Male, MORTALITY, nuclear magnetic resonance imaging, paralysis, paresthesia, pathology, patient participation, priority journal, questionnaire, Retrospective Studies, retrospective study, RISK assessment, risk factor, Soccer, sport injury, Surveys and Questionnaires, terminal disease, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Kerr, Hamish A; Mjaanes, Jeffrey M
Concerns about concussion rates in female youth soccer...JAMA Pediatr. 2014 Mar;168(3):258-64 Journal Article
In: JAMA Pediatr, vol. 168, no. 10, pp. 967–968, 2014, ISBN: 2168-6203.
Links | BibTeX | Tags: Athletic Injuries -- Epidemiology, Brain Concussion -- Epidemiology, Female, Patient Attitudes, Soccer, Students -- Statistics and Numerical Data
@article{Kerr2014,
title = {Concerns about concussion rates in female youth soccer...JAMA Pediatr. 2014 Mar;168(3):258-64},
author = {Kerr, Hamish A and Mjaanes, Jeffrey M},
doi = {10.1001/jamapediatrics.2014.783},
isbn = {2168-6203},
year = {2014},
date = {2014-01-01},
journal = {JAMA Pediatr},
volume = {168},
number = {10},
pages = {967--968},
publisher = {American Medical Association},
address = {Chicago, Illinois},
keywords = {Athletic Injuries -- Epidemiology, Brain Concussion -- Epidemiology, Female, Patient Attitudes, Soccer, Students -- Statistics and Numerical Data},
pubstate = {published},
tppubtype = {article}
}
Buzas, David; Jacobson, Nathan A; Morawa, Lawrence G
Concussions From 9 Youth Organized Sports: Results From NEISS Hospitals Over an 11-Year Time Frame, 2002-2012 Journal Article
In: Orthopaedic Journal of Sports Medicine, pp. 1–8, 2014.
Links | BibTeX | Tags: ADOLESCENCE, Adolescent Health, Age Factors, Athletic Injuries -- Epidemiology -- In Infancy an, Baseball, BASKETBALL, Brain Concussion -- Epidemiology -- In Infancy and, Child, Child Health, Data Analysis Software, descriptive research, DESCRIPTIVE statistics, Disease Surveillance, emergency care, Epidemiological Research, Female, football, Gymnastics, Hockey, human, Male, MICHIGAN, Pearson's Correlation Coefficient, Preschool, Prospective Studies, Racquet Sports, Soccer, unconsciousness, UNITED States, wrestling
@article{Buzas2014,
title = {Concussions From 9 Youth Organized Sports: Results From NEISS Hospitals Over an 11-Year Time Frame, 2002-2012},
author = {Buzas, David and Jacobson, Nathan A and Morawa, Lawrence G},
doi = {10.1177/2325967114528460},
year = {2014},
date = {2014-01-01},
journal = {Orthopaedic Journal of Sports Medicine},
pages = {1--8},
publisher = {Sage Publications Inc.},
address = {Thousand Oaks, California},
keywords = {ADOLESCENCE, Adolescent Health, Age Factors, Athletic Injuries -- Epidemiology -- In Infancy an, Baseball, BASKETBALL, Brain Concussion -- Epidemiology -- In Infancy and, Child, Child Health, Data Analysis Software, descriptive research, DESCRIPTIVE statistics, Disease Surveillance, emergency care, Epidemiological Research, Female, football, Gymnastics, Hockey, human, Male, MICHIGAN, Pearson's Correlation Coefficient, Preschool, Prospective Studies, Racquet Sports, Soccer, unconsciousness, UNITED States, wrestling},
pubstate = {published},
tppubtype = {article}
}
Straume-Naesheim, Truls M; Andersen, Thor Einar; K Holme, Ingar Morten; McIntosh, Andrew S; Dvorak, Jiri; Bahr, Roald
Do minor head impacts in soccer cause concussive injury? A prospective case-control study Journal Article
In: Neurosurgery, vol. 64, pp. 719–25; discussion 725, 2009.
Abstract | BibTeX | Tags: Soccer
@article{Straume-Naesheim2009,
title = {Do minor head impacts in soccer cause concussive injury? A prospective case-control study},
author = {Straume-Naesheim, Truls M and Andersen, Thor Einar and {K Holme}, Ingar Morten and McIntosh, Andrew S and Dvorak, Jiri and Bahr, Roald},
year = {2009},
date = {2009-01-01},
journal = {Neurosurgery},
volume = {64},
pages = {719--25; discussion 725},
address = {Department of Sports Medicine, Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway. truls.straume-nesheim@nih.no},
abstract = {OBJECTIVE: Our objective was to determine whether minor head trauma in elite soccer matches causes measurable impairment in brain function. METHODS: Baseline neuropsychological testing was completed by professional soccer players in the Norwegian elite league, Tippeligaen, before the 2004 and 2005 seasons (n = 462). A player who experienced a head impact during a league match completed a follow-up test the next day (head impact group). Videotapes of all impacts were collected and reviewed. A group of players without head impacts was also tested after a league match to serve as controls (matched control group; n = 47). RESULTS: A total of 228 impacts were identified, and 44 (19.3%) of these were followed up with a CogSport test (CogState, Ltd., Charlton South, Australia; the players who were tested tended to have more severe injuries, but there were only 6 cases with loss of consciousness). The head impact group had a greater change in reaction time from baseline to follow-up compared with the matched control group with regard to the 3 simplest tasks. The largest deficits were seen among the players reporting acute symptoms after the impact, but deficits were also demonstrated among asymptomatic players. Players who experienced 1 or more head impacts during the 2004 season showed a reduction in neuropsychological performance when tested before the 2005 season. However, none of these players was impaired when compared with the test manufacturer's normative data. CONCLUSION: A reduced neuropsychological performance was found after minor head impacts in soccer, even in allegedly asymptomatic players. However, the long-term cognitive consequences are uncertain.},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
McCrory, Paul R
Brain injury and heading in soccer Journal Article
In: BMJ, vol. 327, pp. 351–352, 2003.
@article{McCrory2003,
title = {Brain injury and heading in soccer},
author = {McCrory, Paul R},
year = {2003},
date = {2003-01-01},
journal = {BMJ},
volume = {327},
pages = {351--352},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Naunheim, Rosanne S; Standeven, John; Bayly, Philip
Cumulative effects of soccer heading are not fully known Journal Article
In: BMJ, vol. 327, pp. 1168, 2003.
@article{Naunheim2003,
title = {Cumulative effects of soccer heading are not fully known},
author = {Naunheim, Rosanne S and Standeven, John and Bayly, Philip},
year = {2003},
date = {2003-01-01},
journal = {BMJ},
volume = {327},
pages = {1168},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Kirkendall, D T; Jordan, S E; Garrett, W E
Heading and head injuries in soccer Journal Article
In: Sports Medicine, vol. 31, pp. 369–386, 2001.
Abstract | BibTeX | Tags: Soccer
@article{Kirkendall2001,
title = {Heading and head injuries in soccer},
author = {Kirkendall, D T and Jordan, S E and Garrett, W E},
year = {2001},
date = {2001-01-01},
journal = {Sports Medicine},
volume = {31},
pages = {369--386},
address = {United States Soccer Federation, Chicago, Illinois, USA.},
abstract = {In the world of sports, soccer is unique because of the purposeful use of the unprotected head for controlling and advancing the ball. This skill obviously places the player at risk of head injury and the game does carry some risk. Head injury can be a result of contact of the head with another head (or other body parts), ground, goal post, other unknown objects or even the ball. Such impacts can lead to contusions, fractures, eye injuries, concussions or even, in rare cases, death. Coaches, players, parents and physicians are rightly concerned about the risk of head injury in soccer. Current research shows that selected soccer players have some degree of cognitive dysfunction. It is important to determine the reasons behind such deficits. Purposeful heading has been blamed, but a closer look at the studies that focus on heading has revealed methodological concerns that question the validity of blaming purposeful heading of the ball. The player's history and age (did they play when the ball was leather and could absorb significant amounts of water), alcohol intake, drug intake, learning disabilities, concussion definition and control group use/composition are all factors that cloud the ability to blame purposeful heading. What does seem clear is that a player's history of concussive episodes is a more likely explanation for cognitive deficits. While it is likely that the subconcussive impact of purposeful heading is a doubtful factor in the noted deficits, it is unknown whether multiple subconcussive impacts might have some lingering effects. In addition, it is unknown whether the noted deficits have any affect on daily life. Proper instruction in the technique is critical because if the ball contacts an unprepared head (as in accidental head-ball contacts), the potential for serious injury is possible. To further our understanding of the relationship of heading, head injury and cognitive deficits, we need to: learn more about the actual impact of a ball on the head, verify the exposure to heading at all ages and competitive levels, determine stable estimates of concussive injury rates across the soccer spectrum, conduct prospective longitudinal studies on soccer players focusing on exposure, injury and cognition, and determine the minimum safe age to begin instruction on the skill of heading. Only then will we be able to speak with some authority on the issue of heading and head injuries in soccer. [References: 62]},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Kernick, D P
Heading in soccer--time for a rethink? Journal Article
In: British Journal of General Practice, vol. 49, pp. 171, 1999.
@article{Kernick1999,
title = {Heading in soccer--time for a rethink?},
author = {Kernick, D P},
year = {1999},
date = {1999-01-01},
journal = {British Journal of General Practice},
volume = {49},
pages = {171},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Kent, H
Ball rolling on research into heading injuries Journal Article
In: CMAJ Canadian Medical Association Journal, vol. 161, pp. 1434, 1999.
@article{Kent1999,
title = {Ball rolling on research into heading injuries},
author = {Kent, H},
year = {1999},
date = {1999-01-01},
journal = {CMAJ Canadian Medical Association Journal},
volume = {161},
pages = {1434},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Green, G A; Jordan, S E
Are brain injuries a significant problem in soccer? Journal Article
In: Clinics in Sports Medicine, vol. 17, pp. 795–809, 1998.
Abstract | BibTeX | Tags: Soccer
@article{Green1998,
title = {Are brain injuries a significant problem in soccer?},
author = {Green, G A and Jordan, S E},
year = {1998},
date = {1998-01-01},
journal = {Clinics in Sports Medicine},
volume = {17},
pages = {795--809},
address = {Department of Family Medicine, University of California at Los Angeles, USA. GGREEN@MedNet.ucla.edu},
abstract = {This article examines the types of forces that the brain is subjected to in soccer, secondary to both acute brain injury and repetitive heading of the ball. The incidence of acute brain injury is reviewed, as well as studies documenting the effects of heading the ball. Finally, 10 actions are proposed that would make soccer a safer sport with respect to brain injuries and provide avenues for further study in this area.},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Baroff, G S
Is heading a soccer ball injurious to brain function? Journal Article
In: Journal of Head Trauma Rehabilitation, vol. 13, pp. 45–52, 1998.
Abstract | BibTeX | Tags: Soccer
@article{Baroff1998,
title = {Is heading a soccer ball injurious to brain function?},
author = {Baroff, G S},
year = {1998},
date = {1998-01-01},
journal = {Journal of Head Trauma Rehabilitation},
volume = {13},
pages = {45--52},
address = {Developmental Disabilities Training Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3370, USA.},
abstract = {With the growing popularity of soccer both in the United States and worldwide, reports of adverse effects of 'heading' on brain function are a source of concern. This article reviews the related research literature on neurologic and neuropsychological findings. Neurologic and neuropsychological abnormalities have been reported in a significant minority of older former professional players in Norway. Purportedly unrelated to age, the most prominent findings were cerebral atrophy and impairment on intelligence test abilities that are particularly vulnerable to brain damage. Also noteworthy in these retired players were persistent physical, cognitive, and emotional complaints consistent with a postconcussive syndrome. Younger amateur players appear to be free of major abnormalities, although some report persistent difficulties with memory and concentration. The severity of these complaints may be related to a history of soccer-related head injuries and not necessarily specific to heading. Research findings specific to heading are not more than suggestive at best, and clarification of the risks of heading a soccer ball awaits more definitive studies. [References: 20]},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}
Tysvaer, A; Storli, O
Association football injuries to the brain. A preliminary report Journal Article
In: British Journal of Sports Medicine, vol. 15, pp. 163–166, 1981.
Abstract | BibTeX | Tags: Soccer
@article{Tysvaer1981,
title = {Association football injuries to the brain. A preliminary report},
author = {Tysvaer, A and Storli, O},
year = {1981},
date = {1981-01-01},
journal = {British Journal of Sports Medicine},
volume = {15},
pages = {163--166},
abstract = {In 1975 the authors sent a questionnaire to all players in the Norwegian First Division League Clubs to record the incidence of head injuries due to heading. The conclusion of the questionnaire is that there seems to be a low percentage of serious head injuries. None of the players had been operated on for epi- or subdural hematoma or other brain damage and only a few have had concussion due to heading. In sixty per cent of the players a full neurological examination and EEG recording was undertaken. The result of these studies will be published in a subsequent article.},
keywords = {Soccer},
pubstate = {published},
tppubtype = {article}
}