Loosemore, Michael P; Butler, Charles F; Khadri, Abdelhamid; McDonagh, David; Patel, Vimal A; Bailes, Julian E
Use of Head Guards in AIBA Boxing Tournaments--A Cross-Sectional Observational Study Journal Article
In: Clinical Journal of Sport Medicine, vol. 27, no. 1, pp. 86–88, 2017, ISBN: 1050642X.
Abstract | BibTeX | Tags: acute brain injuries, Boxing, BOXING injuries, Concussion, CONFIDENCE intervals, CROSS-sectional method, DISEASE incidence, Head Protective Devices, LONGITUDINAL method, Poisson distribution, PREVENTION, PROBABILITY theory, Relative risk (Medicine), SAFETY hats, SPORTS events, STATISTICAL hypothesis testing, traumatic brain injury, WOUNDS & injuries
@article{Loosemore2017,
title = {Use of Head Guards in AIBA Boxing Tournaments--A Cross-Sectional Observational Study},
author = {Loosemore, Michael P and Butler, Charles F and Khadri, Abdelhamid and McDonagh, David and Patel, Vimal A and Bailes, Julian E},
isbn = {1050642X},
year = {2017},
date = {2017-01-01},
journal = {Clinical Journal of Sport Medicine},
volume = {27},
number = {1},
pages = {86--88},
abstract = {Objective: This study looks at the changes in injuries after the implementation of a new rule by the International Boxing Association (AIBA) to remove head guards from its competitions. Design: A cross-sectional observational study performed prospectively. This brief report examines the removal of head guards in 2 different ways. The first was to examine the stoppages due to blows to the head by comparing World Series Boxing (WSB), without head guards, to other AIBA competitions with head guards. Secondly, we examined the last 3 world championships: 2009 and 2011 (with head guards) and 2013 (without head guards). Setting: World Series Boxing and AIBA world championship boxing. Participants: Boxers from WSB and AIBA world championships. Interventions: The information was recorded by ringside medical physicians. Main Outcome Measures: Stoppages per 10 000 rounds; stoppages per 1000 hours. Results: Both studies show that the number of stoppages due to head blows was significantly decreased without head guards. The studies also showed that there was a notable increase in cuts. Conclusions: Removing head guards may reduce the already small risk of acute brain injury in amateur boxing. [ABSTRACT FROM AUTHOR]},
keywords = {acute brain injuries, Boxing, BOXING injuries, Concussion, CONFIDENCE intervals, CROSS-sectional method, DISEASE incidence, Head Protective Devices, LONGITUDINAL method, Poisson distribution, PREVENTION, PROBABILITY theory, Relative risk (Medicine), SAFETY hats, SPORTS events, STATISTICAL hypothesis testing, traumatic brain injury, WOUNDS \& injuries},
pubstate = {published},
tppubtype = {article}
}
Bachynski, K E
Tolerable Risks? Physicians and Youth Tackle Football Journal Article
In: New England Journal of Medicine, vol. 374, no. 5, pp. 405–407, 2016.
BibTeX | Tags: *Athletic Injuries/pc [Prevention & Control], *Brain Concussion/pc [Prevention & Control], *Football/in [Injuries], *Guidelines as Topic, *Physician's Role, *SPORTS medicine, Adolescent, Brain Concussion/et [Etiology], Child, Craniocerebral Trauma/et [Etiology], Craniocerebral Trauma/pc [Prevention & Control], Head Protective Devices, Humans, Medical, pediatrics, Societies, UNITED States
@article{Bachynski2016,
title = {Tolerable Risks? Physicians and Youth Tackle Football},
author = {Bachynski, K E},
year = {2016},
date = {2016-01-01},
journal = {New England Journal of Medicine},
volume = {374},
number = {5},
pages = {405--407},
keywords = {*Athletic Injuries/pc [Prevention \& Control], *Brain Concussion/pc [Prevention \& Control], *Football/in [Injuries], *Guidelines as Topic, *Physician's Role, *SPORTS medicine, Adolescent, Brain Concussion/et [Etiology], Child, Craniocerebral Trauma/et [Etiology], Craniocerebral Trauma/pc [Prevention \& Control], Head Protective Devices, Humans, Medical, pediatrics, Societies, UNITED States},
pubstate = {published},
tppubtype = {article}
}
Stieg, P E; Perrine, K
Helmet Use and Traumatic Brain Injury in Snowboarding Journal Article
In: World Neurosurgery, vol. 86, pp. 65–68, 2016.
Links | BibTeX | Tags: brain hemorrhage, Concussion, disability, emergency ward, Female, head injury, Head Protective Devices, Helmet, human, Humans, Injuries, Male, Morbidity, MORTALITY, Neuroprotection, Review, skiing, skull fracture, Snowboarding, Traumatic, traumatic brain injury, UNITED States, winter sport
@article{Stieg2016,
title = {Helmet Use and Traumatic Brain Injury in Snowboarding},
author = {Stieg, P E and Perrine, K},
doi = {10.1016/j.wneu.2015.07.044},
year = {2016},
date = {2016-01-01},
journal = {World Neurosurgery},
volume = {86},
pages = {65--68},
keywords = {brain hemorrhage, Concussion, disability, emergency ward, Female, head injury, Head Protective Devices, Helmet, human, Humans, Injuries, Male, Morbidity, MORTALITY, Neuroprotection, Review, skiing, skull fracture, Snowboarding, Traumatic, traumatic brain injury, UNITED States, winter sport},
pubstate = {published},
tppubtype = {article}
}
Williams, R M; Dowling, M; O'Connor, K L
Head Impact Measurement Devices Journal Article
In: Sports & Health, vol. 8, no. 3, pp. 270–273, 2016.
Abstract | BibTeX | Tags: *Accelerometry, *Athletic Injuries/di [Diagnosis], *Brain Concussion/di [Diagnosis], Athletic Injuries/pp [Physiopathology], Biomechanical Phenomena, Brain Concussion/pp [Physiopathology], Head Protective Devices, Head/pp [Physiopathology], Humans
@article{Williams2016b,
title = {Head Impact Measurement Devices},
author = {Williams, R M and Dowling, M and O'Connor, K L},
year = {2016},
date = {2016-01-01},
journal = {Sports \& Health},
volume = {8},
number = {3},
pages = {270--273},
abstract = {CONTEXT: Concussive injuries are at the forefront of sports medicine research. Recently, researchers have used a variety of head- and helmet-based impact-monitoring devices to quantify impacts sustained during contact sport participation. This review provides an up-to-date collection of head accelerometer use at the youth, high school, and collegiate levels. EVIDENCE ACQUISITION: PubMed was searched for articles published between 1980 and 2015 using the terms accelerometer and concussion, impact sensor and concussion, head impact telemetry system, head impact telemetry, and linear acceleration and concussion. An additional Google search was performed to capture devices without publications. STUDY DESIGN: Clinical review. LEVEL OF EVIDENCE: Level 4. RESULTS: Twenty-four products track and/or record head impact for clinical or research use. Ten of these head impact devices have publications supporting their utility. CONCLUSION: Head impact measuring devices can describe athlete exposure in terms of magnitude and/or frequency, highlighting their utility within a multimodal approach for concussion assessment and diagnosis.},
keywords = {*Accelerometry, *Athletic Injuries/di [Diagnosis], *Brain Concussion/di [Diagnosis], Athletic Injuries/pp [Physiopathology], Biomechanical Phenomena, Brain Concussion/pp [Physiopathology], Head Protective Devices, Head/pp [Physiopathology], Humans},
pubstate = {published},
tppubtype = {article}
}
Hernandez, F; Shull, P B; Camarillo, D B
Evaluation of a laboratory model of human head impact biomechanics Journal Article
In: Journal of Biomechanics, vol. 48, no. 12, pp. 3469–3477, 2015.
Abstract | BibTeX | Tags: *HEAD, *Laboratories, *Mechanical Phenomena, *Models, Acceleration, Biological, Biomechanical Phenomena, Brain Concussion/et [Etiology], Football/in [Injuries], Head Protective Devices, Humans, Male, Neck/ph [Physiology], Rotation, SAFETY
@article{Hernandez2015,
title = {Evaluation of a laboratory model of human head impact biomechanics},
author = {Hernandez, F and Shull, P B and Camarillo, D B},
year = {2015},
date = {2015-01-01},
journal = {Journal of Biomechanics},
volume = {48},
number = {12},
pages = {3469--3477},
abstract = {This work describes methodology for evaluating laboratory models of head impact biomechanics. Using this methodology, we investigated: how closely does twin-wire drop testing model head rotation in American football impacts? Head rotation is believed to cause mild traumatic brain injury (mTBI) but helmet safety standards only model head translations believed to cause severe TBI. It is unknown whether laboratory head impact models in safety standards, like twin-wire drop testing, reproduce six degree-of-freedom (6DOF) head impact biomechanics that may cause mTBI. We compared 6DOF measurements of 421 American football head impacts to twin-wire drop tests at impact sites and velocities weighted to represent typical field exposure. The highest rotational velocities produced by drop testing were the 74th percentile of non-injury field impacts. For a given translational acceleration level, drop testing underestimated field rotational acceleration by 46% and rotational velocity by 72%. Primary rotational acceleration frequencies were much larger in drop tests ($sim$100 Hz) than field impacts ($sim$10 Hz). Drop testing was physically unable to produce acceleration directions common in field impacts. Initial conditions of a single field impact were highly resolved in stereo high-speed video and reconstructed in a drop test. Reconstruction results reflected aggregate trends of lower amplitude rotational velocity and higher frequency rotational acceleration in drop testing, apparently due to twin-wire constraints and the absence of a neck. These results suggest twin-wire drop testing is limited in modeling head rotation during impact, and motivate continued evaluation of head impact models to ensure helmets are tested under conditions that may cause mTBI. Copyright © 2015 Elsevier Ltd. All rights reserved.},
keywords = {*HEAD, *Laboratories, *Mechanical Phenomena, *Models, Acceleration, Biological, Biomechanical Phenomena, Brain Concussion/et [Etiology], Football/in [Injuries], Head Protective Devices, Humans, Male, Neck/ph [Physiology], Rotation, SAFETY},
pubstate = {published},
tppubtype = {article}
}
Brewster, R; Bi, W L; Smith, T R; Gormley, W B; Dunn, I F; Laws Jr., E R
The neurosurgeon as baseball fan and inventor: Walter Dandy and the batter's helmet Journal Article
In: Neurosurgical Focus, vol. 39, no. 1, 2015.
Abstract | Links | BibTeX | Tags: 19th Century, 20th Century, Baseball, Baseball helmet, brain concussion, Head Protective Devices, Head trauma, Helmet, HISTORY, human, Humans, Injuries, Innovation, Male, middle aged, neurosurgeon, Neurosurgeons, Protective gear, traumatic brain injury, Walter dandy
@article{Brewster2015,
title = {The neurosurgeon as baseball fan and inventor: Walter Dandy and the batter's helmet},
author = {Brewster, R and Bi, W L and Smith, T R and Gormley, W B and Dunn, I F and {Laws Jr.}, E R},
doi = {10.3171/2015.3.FOCUS1552},
year = {2015},
date = {2015-01-01},
journal = {Neurosurgical Focus},
volume = {39},
number = {1},
abstract = {Baseball maintains one of the highest impact injury rates in all athletics. A principal causative factor is the "beanball," referring to a pitch thrown directly at a batter's head. Frequent morbidities elicited demand for the development of protective gear development in the 20th century. In this setting, Dr. Walter Dandy was commissioned to design a "protective cap" in 1941. His invention became widely adopted by professional baseball and inspired subsequent generations of batting helmets. As a baseball aficionado since his youth, Walter Dandy identified a natural partnership between baseball and medical practice for the reduction of beaning-related brain injuries. This history further supports the unique position of neurosurgeons to leverage clinical insights, inform innovation, and expand service to society. © AANS, 2015.},
keywords = {19th Century, 20th Century, Baseball, Baseball helmet, brain concussion, Head Protective Devices, Head trauma, Helmet, HISTORY, human, Humans, Injuries, Innovation, Male, middle aged, neurosurgeon, Neurosurgeons, Protective gear, traumatic brain injury, Walter dandy},
pubstate = {published},
tppubtype = {article}
}
Bowman, T G; Breedlove, K M; Breedlove, E L; Dodge, T M; Nauman, E A
Impact attenuation properties of new and used lacrosse helmets Journal Article
In: Journal of Biomechanics, vol. 48, no. 14, pp. 3782–3787, 2015.
Abstract | Links | BibTeX | Tags: Accident prevention, Article, Athletic Injuries, attenuation, brain concussion, Cracks, Drop test, Drops, Equipment Design, Gadd Severity Index, head impact, Head Protective Devices, Helmet, Helmet evaluation, human, Humans, Injuries, lacrosse helmet, Materials testing, mechanical stress, priority journal, protective equipment, racquet sport, Racquet Sports, recertification, rigidity, Safety devices, Severity index, Sporting goods, Sports Equipment, standards, stress strain relationship, velocity
@article{Bowman2015,
title = {Impact attenuation properties of new and used lacrosse helmets},
author = {Bowman, T G and Breedlove, K M and Breedlove, E L and Dodge, T M and Nauman, E A},
doi = {10.1016/j.jbiomech.2015.08.026},
year = {2015},
date = {2015-01-01},
journal = {Journal of Biomechanics},
volume = {48},
number = {14},
pages = {3782--3787},
abstract = {The National Operating Committee on Standards for Athletic Equipment (NOCSAE) has developed impact attenuation thresholds that protective helmets worn in sport must meet to be commercially available in an attempt to prevent injury. It remains unknown how normal helmet use in athletic activity alters the force attenuation ability of lacrosse helmets. We tested 3 new and 3 randomly selected used helmets from 2 popular lacrosse models (Cascade Pro7, Cascade CPXR). All used helmets had been worn for 3 collegiate seasons prior to testing and had never been refurbished. Helmets were drop-tested using 3 prescribed impact velocities at 6 locations according to the NOCSAE lacrosse helmet standard, and we compared the Gadd Severity Index (GSI) scores between new and used helmets using a repeated measure ANOVA with location as the repeated variable and data separated by impact velocity. All 12 helmets passed the NOCSAE GSI threshold for all testing conditions; however 1 used helmet shell cracked resulting in a failed test. We found a significant main effect for helmet age at the low (F5},
keywords = {Accident prevention, Article, Athletic Injuries, attenuation, brain concussion, Cracks, Drop test, Drops, Equipment Design, Gadd Severity Index, head impact, Head Protective Devices, Helmet, Helmet evaluation, human, Humans, Injuries, lacrosse helmet, Materials testing, mechanical stress, priority journal, protective equipment, racquet sport, Racquet Sports, recertification, rigidity, Safety devices, Severity index, Sporting goods, Sports Equipment, standards, stress strain relationship, velocity},
pubstate = {published},
tppubtype = {article}
}
Gardner, E C
Head, Face, and Eye Injuries in Collegiate Women's Field Hockey Journal Article
In: American Journal of Sports Medicine, vol. 43, no. 8, pp. 2027–2034, 2015.
Abstract | BibTeX | Tags: *Craniocerebral Trauma/ep [Epidemiology], *Eye Injuries/ep [Epidemiology], *Facial Injuries/ep [Epidemiology], *Hockey/in [Injuries], Brain Concussion/ep [Epidemiology], Craniocerebral Trauma/pc [Prevention & Control], Eye Injuries/pc [Prevention & Control], Eye Protective Devices, Facial Injuries/pc [Prevention & Control], Female, Head Protective Devices, Humans, Incidence, Students, United States/ep [Epidemiology], Universities
@article{Gardner2015a,
title = {Head, Face, and Eye Injuries in Collegiate Women's Field Hockey},
author = {Gardner, E C},
year = {2015},
date = {2015-01-01},
journal = {American Journal of Sports Medicine},
volume = {43},
number = {8},
pages = {2027--2034},
abstract = {BACKGROUND: While there is concern regarding head, face, and eye injuries in field hockey, prompting some to recommend the use of protective equipment such as goggles and helmets, little has been written about their incidence and mechanism of injury in the modern game of field hockey. The elucidation of this information will better inform the development of maximally effective injury prevention schemes to protect the athlete while maintaining the integrity of the game. PURPOSE: To determine the incidence and epidemiology of head, face, and eye injuries in United States collegiate women's field hockey players from 2004-2005 to 2008-2009. STUDY DESIGN: Descriptive epidemiological study. METHODS: All head, face, and eye injuries reported to the National Collegiate Athletic Association Injury Surveillance System for collegiate women's field hockey athletes from the 2004-2005 through 2008-2009 seasons were analyzed. Data regarding the event type, injury mechanism, body part injured, type of injury, outcome, and time lost were reviewed. The weighted injury incidence per 1000 athlete-exposures (AEs) was calculated using the exposure data set for the same years; 95% CIs were calculated based on a normal approximation to the Poisson distribution. RESULTS: There were 150 reported traumatic injuries during this time period, with a weighted occurrence of 1587.3 injuries. The overall incidence of head, face, and eye injuries in collegiate women's field hockey was 0.94 per 1000 AEs (95% CI, 0.86-1.19). Injuries to the head or face, other than the mouth, nose, and eye, accounted for 75.3% of these injuries. The incidence of eye injuries was 0.07 per 1000 AEs (95% CI, 0.03-0.12); nose injuries occurred at a rate of 0.10 per 1000 AEs (95% CI, 0.05-0.15). The rate of traumatic dental injuries was 0.06 per 1000 AEs (95% CI, 0.04-0.14). Contact with an apparatus caused 72.9% of all injuries; specifically, contact with an elevated ball accounted for 47.9% of all injuries, and contact with an elevated stick caused 21.7% of all injuries. While the majority of players suffering a head, face, or eye injury were able to return to sport that season (90.0%), the remaining athletes suffered season-ending injuries (10%). Concussions accounted for 42.8% of all head, face, and eye injuries reported (0.40 per 1000 AEs; 95% CI, 0.32-0.53). CONCLUSION: Head, face, and eye injuries occur regularly in women's field hockey. This description of the injury profile and mechanisms of injury may be used to design appropriate injury prevention schemes for the sport.Copyright © 2015 The Author(s).},
keywords = {*Craniocerebral Trauma/ep [Epidemiology], *Eye Injuries/ep [Epidemiology], *Facial Injuries/ep [Epidemiology], *Hockey/in [Injuries], Brain Concussion/ep [Epidemiology], Craniocerebral Trauma/pc [Prevention \& Control], Eye Injuries/pc [Prevention \& Control], Eye Protective Devices, Facial Injuries/pc [Prevention \& Control], Female, Head Protective Devices, Humans, Incidence, Students, United States/ep [Epidemiology], Universities},
pubstate = {published},
tppubtype = {article}
}
Swartz, E E; Broglio, S P; Cook, S B; Cantu, R C; Ferrara, M S; Guskiewicz, K M; Myers, J L
Early Results of a Helmetless-Tackling Intervention to Decrease Head Impacts in Football Players Journal Article
In: Journal of Athletic Training, vol. 50, no. 12, pp. 1219–1222, 2015.
Abstract | BibTeX | Tags: *Craniocerebral Trauma/pc [Prevention & Control], *Football/in [Injuries], *Physical Education and Training/mt [Methods], Acceleration, Head Protective Devices, Humans, Male, Prospective Studies, Universities
@article{Swartz2015,
title = {Early Results of a Helmetless-Tackling Intervention to Decrease Head Impacts in Football Players},
author = {Swartz, E E and Broglio, S P and Cook, S B and Cantu, R C and Ferrara, M S and Guskiewicz, K M and Myers, J L},
year = {2015},
date = {2015-01-01},
journal = {Journal of Athletic Training},
volume = {50},
number = {12},
pages = {1219--1222},
abstract = {OBJECTIVE: To test a helmetless-tackling behavioral intervention for reducing head impacts in National Collegiate Athletic Association Division I football players. DESIGN: Randomized controlled clinical trial. SETTING: Football field. PATIENTS OR OTHER PARTICIPANTS: Fifty collegiate football players (intervention = 25},
keywords = {*Craniocerebral Trauma/pc [Prevention \& Control], *Football/in [Injuries], *Physical Education and Training/mt [Methods], Acceleration, Head Protective Devices, Humans, Male, Prospective Studies, Universities},
pubstate = {published},
tppubtype = {article}
}
Liu, C Y; Law, M; Romano, R
Rational approach to understanding and preventing sports-related traumatic brain injuries Journal Article
In: World Neurosurgery, vol. 84, no. 6, pp. 1556–1557, 2015.
Links | BibTeX | Tags: accelerometer, ACCELEROMETRY, biological marker, brain, brain concussion, brain hemorrhage, cognitive defect, Diffusion Tensor Imaging, Electroencephalography, emergency health service, Female, Head Protective Devices, Helmet, high risk patient, human, Humans, Injuries, Male, neuroimaging, neuromodulation, neuroprotective agent, nuclear magnetic resonance imaging, Occupational Exposure, protective equipment, Review, risk factor, risk reduction, SAFETY, skiing, Snowboarding, sport injury, Traumatic, traumatic brain injury, viscoelastic substance
@article{Liu2015,
title = {Rational approach to understanding and preventing sports-related traumatic brain injuries},
author = {Liu, C Y and Law, M and Romano, R},
doi = {10.1016/j.wneu.2015.07.076},
year = {2015},
date = {2015-01-01},
journal = {World Neurosurgery},
volume = {84},
number = {6},
pages = {1556--1557},
keywords = {accelerometer, ACCELEROMETRY, biological marker, brain, brain concussion, brain hemorrhage, cognitive defect, Diffusion Tensor Imaging, Electroencephalography, emergency health service, Female, Head Protective Devices, Helmet, high risk patient, human, Humans, Injuries, Male, neuroimaging, neuromodulation, neuroprotective agent, nuclear magnetic resonance imaging, Occupational Exposure, protective equipment, Review, risk factor, risk reduction, SAFETY, skiing, Snowboarding, sport injury, Traumatic, traumatic brain injury, viscoelastic substance},
pubstate = {published},
tppubtype = {article}
}
Bartsch, A; Samorezov, S; Benzel, E; Miele, V; Brett, D
Validation of an "Intelligent Mouthguard" Single Event Head Impact Dosimeter Journal Article
In: Stapp Car Crash Journal, vol. 58, pp. 1–27, 2014.
Abstract | BibTeX | Tags: *Acceleration, *Boxing, *Brain Injuries, *Football, *Mouth Protectors, *Telemetry, ALGORITHMS, Biomechanical Phenomena/ph [Physiology], Boxing/in [Injuries], Boxing/ph [Physiology], Brain Injuries/di [Diagnosis], Brain Injuries/et [Etiology], Brain Injuries/pc [Prevention & Control], Brain Injuries/pp [Physiopathology], finite element analysis, Football/in [Injuries], Football/ph [Physiology], Head Protective Devices, Humans, Reproducibility of Results, Telemetry/is [Instrumentation], Telemetry/mt [Methods]
@article{Bartsch2014,
title = {Validation of an "Intelligent Mouthguard" Single Event Head Impact Dosimeter},
author = {Bartsch, A and Samorezov, S and Benzel, E and Miele, V and Brett, D},
year = {2014},
date = {2014-01-01},
journal = {Stapp Car Crash Journal},
volume = {58},
pages = {1--27},
abstract = {Dating to Colonel John Paul Stapp MD in 1975, scientists have desired to measure live human head impacts with accuracy and precision. But no instrument exists to accurately and precisely quantify single head impact events. Our goal is to develop a practical single event head impact dosimeter known as "Intelligent Mouthguard" and quantify its performance on the benchtop, in vitro and in vivo. In the Intelligent Mouthguard hardware, limited gyroscope bandwidth requires an algorithm-based correction as a function of impact duration. After we apply gyroscope correction algorithm, Intelligent Mouthguard results at time of CG linear acceleration peak correlate to the Reference Hybrid III within our tested range of pulse durations and impact acceleration profiles in American football and Boxing in vitro tests: American football},
keywords = {*Acceleration, *Boxing, *Brain Injuries, *Football, *Mouth Protectors, *Telemetry, ALGORITHMS, Biomechanical Phenomena/ph [Physiology], Boxing/in [Injuries], Boxing/ph [Physiology], Brain Injuries/di [Diagnosis], Brain Injuries/et [Etiology], Brain Injuries/pc [Prevention \& Control], Brain Injuries/pp [Physiopathology], finite element analysis, Football/in [Injuries], Football/ph [Physiology], Head Protective Devices, Humans, Reproducibility of Results, Telemetry/is [Instrumentation], Telemetry/mt [Methods]},
pubstate = {published},
tppubtype = {article}
}
Hogan, Ann
Sport--related concussion care in the emergency department: What every ED nurse needs to know Journal Article
In: Canadian Journal of Emergency Nursing (CJEN), vol. 36, no. 2, pp. 22–23, 2013, ISBN: 1499-3627.
BibTeX | Tags: Athletic Injuries, Brain Injuries, Brain Injuries -- Classification, Brain Injuries -- Complications, Brain Injuries -- Diagnosis, Brain Injuries -- Prevention and Control, Brain Injuries -- Symptoms, Brain Injuries -- Therapy, emergency care, Emergency Nursing, Emergency Service, Head Protective Devices, Information Resources, Nursing Role, World Wide Web
@article{Hogan2013,
title = {Sport--related concussion care in the emergency department: What every ED nurse needs to know},
author = {Hogan, Ann},
isbn = {1499-3627},
year = {2013},
date = {2013-01-01},
journal = {Canadian Journal of Emergency Nursing (CJEN)},
volume = {36},
number = {2},
pages = {22--23},
publisher = {National Emergency Nurses Association},
address = {Chiliwack, British Columbia},
keywords = {Athletic Injuries, Brain Injuries, Brain Injuries -- Classification, Brain Injuries -- Complications, Brain Injuries -- Diagnosis, Brain Injuries -- Prevention and Control, Brain Injuries -- Symptoms, Brain Injuries -- Therapy, emergency care, Emergency Nursing, Emergency Service, Head Protective Devices, Information Resources, Nursing Role, World Wide Web},
pubstate = {published},
tppubtype = {article}
}
Beckwith, J G; Greenwald, R M; Chu, J J; Crisco, J J; Rowson, S; Duma, S M; Broglio, S P; McAllister, T W; Guskiewicz, K M; Mihalik, J P; Anderson, S; Schnebel, B; Brolinson, P G; Collins, M W
Timing of concussion diagnosis is related to head impact exposure prior to injury Journal Article
In: Medicine & Science in Sports & Exercise, vol. 45, no. 4, pp. 747–754, 2013.
Abstract | BibTeX | Tags: *Brain Concussion/di [Diagnosis], *Brain Concussion/et [Etiology], *Delayed Diagnosis, *Football/in [Injuries], *HEAD injuries, Adolescent, Closed/ep [Epidemiology], ENVIRONMENTAL exposure, Head Protective Devices, Humans, Male, Telemetry/is [Instrumentation], Time Factors, Young Adult
@article{Beckwith2013a,
title = {Timing of concussion diagnosis is related to head impact exposure prior to injury},
author = {Beckwith, J G and Greenwald, R M and Chu, J J and Crisco, J J and Rowson, S and Duma, S M and Broglio, S P and McAllister, T W and Guskiewicz, K M and Mihalik, J P and Anderson, S and Schnebel, B and Brolinson, P G and Collins, M W},
year = {2013},
date = {2013-01-01},
journal = {Medicine \& Science in Sports \& Exercise},
volume = {45},
number = {4},
pages = {747--754},
abstract = {PURPOSE: Concussions are commonly undiagnosed in an athletic environment because the postinjury signs and symptoms may be mild, masked by the subject, or unrecognized. This study compares measures of head impact frequency, location, and kinematic response before cases of immediate and delayed concussion diagnosis. METHODS: Football players from eight collegiate and six high school teams wore instrumented helmets during play (n = 1208), of which 95 were diagnosed with concussion (105 total cases). Acceleration data recorded by the instrumented helmets were reduced to five kinematic metrics: peak linear and rotational acceleration, Gadd severity index, head injury criterion, and change in head velocity (DELTAv). In addition, each impact was assigned to one of four general location regions (front, back, side, and top), and the number of impacts sustained before injury was calculated over two periods (1 and 7 days). RESULTS: All head kinematic measures associated with injury, except peak rotational acceleration (P = 0.284), were significantly higher for cases of immediate diagnosis than delayed diagnosis (P \< 0.05). Players with delayed diagnosis sustained a significantly higher number of head impacts on the day of injury (32.9 +/- 24.9, P \< 0.001) and within 7 d of injury (69.7 +/- 43.3},
keywords = {*Brain Concussion/di [Diagnosis], *Brain Concussion/et [Etiology], *Delayed Diagnosis, *Football/in [Injuries], *HEAD injuries, Adolescent, Closed/ep [Epidemiology], ENVIRONMENTAL exposure, Head Protective Devices, Humans, Male, Telemetry/is [Instrumentation], Time Factors, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Loosemore, Michael P; Butler, Charles F; Khadri, Abdelhamid; McDonagh, David; Patel, Vimal A; Bailes, Julian E
Use of Head Guards in AIBA Boxing Tournaments--A Cross-Sectional Observational Study Journal Article
In: Clinical Journal of Sport Medicine, vol. 27, no. 1, pp. 86–88, 2017, ISBN: 1050642X.
@article{Loosemore2017,
title = {Use of Head Guards in AIBA Boxing Tournaments--A Cross-Sectional Observational Study},
author = {Loosemore, Michael P and Butler, Charles F and Khadri, Abdelhamid and McDonagh, David and Patel, Vimal A and Bailes, Julian E},
isbn = {1050642X},
year = {2017},
date = {2017-01-01},
journal = {Clinical Journal of Sport Medicine},
volume = {27},
number = {1},
pages = {86--88},
abstract = {Objective: This study looks at the changes in injuries after the implementation of a new rule by the International Boxing Association (AIBA) to remove head guards from its competitions. Design: A cross-sectional observational study performed prospectively. This brief report examines the removal of head guards in 2 different ways. The first was to examine the stoppages due to blows to the head by comparing World Series Boxing (WSB), without head guards, to other AIBA competitions with head guards. Secondly, we examined the last 3 world championships: 2009 and 2011 (with head guards) and 2013 (without head guards). Setting: World Series Boxing and AIBA world championship boxing. Participants: Boxers from WSB and AIBA world championships. Interventions: The information was recorded by ringside medical physicians. Main Outcome Measures: Stoppages per 10 000 rounds; stoppages per 1000 hours. Results: Both studies show that the number of stoppages due to head blows was significantly decreased without head guards. The studies also showed that there was a notable increase in cuts. Conclusions: Removing head guards may reduce the already small risk of acute brain injury in amateur boxing. [ABSTRACT FROM AUTHOR]},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bachynski, K E
Tolerable Risks? Physicians and Youth Tackle Football Journal Article
In: New England Journal of Medicine, vol. 374, no. 5, pp. 405–407, 2016.
@article{Bachynski2016,
title = {Tolerable Risks? Physicians and Youth Tackle Football},
author = {Bachynski, K E},
year = {2016},
date = {2016-01-01},
journal = {New England Journal of Medicine},
volume = {374},
number = {5},
pages = {405--407},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Stieg, P E; Perrine, K
Helmet Use and Traumatic Brain Injury in Snowboarding Journal Article
In: World Neurosurgery, vol. 86, pp. 65–68, 2016.
@article{Stieg2016,
title = {Helmet Use and Traumatic Brain Injury in Snowboarding},
author = {Stieg, P E and Perrine, K},
doi = {10.1016/j.wneu.2015.07.044},
year = {2016},
date = {2016-01-01},
journal = {World Neurosurgery},
volume = {86},
pages = {65--68},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Williams, R M; Dowling, M; O'Connor, K L
Head Impact Measurement Devices Journal Article
In: Sports & Health, vol. 8, no. 3, pp. 270–273, 2016.
@article{Williams2016b,
title = {Head Impact Measurement Devices},
author = {Williams, R M and Dowling, M and O'Connor, K L},
year = {2016},
date = {2016-01-01},
journal = {Sports \& Health},
volume = {8},
number = {3},
pages = {270--273},
abstract = {CONTEXT: Concussive injuries are at the forefront of sports medicine research. Recently, researchers have used a variety of head- and helmet-based impact-monitoring devices to quantify impacts sustained during contact sport participation. This review provides an up-to-date collection of head accelerometer use at the youth, high school, and collegiate levels. EVIDENCE ACQUISITION: PubMed was searched for articles published between 1980 and 2015 using the terms accelerometer and concussion, impact sensor and concussion, head impact telemetry system, head impact telemetry, and linear acceleration and concussion. An additional Google search was performed to capture devices without publications. STUDY DESIGN: Clinical review. LEVEL OF EVIDENCE: Level 4. RESULTS: Twenty-four products track and/or record head impact for clinical or research use. Ten of these head impact devices have publications supporting their utility. CONCLUSION: Head impact measuring devices can describe athlete exposure in terms of magnitude and/or frequency, highlighting their utility within a multimodal approach for concussion assessment and diagnosis.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hernandez, F; Shull, P B; Camarillo, D B
Evaluation of a laboratory model of human head impact biomechanics Journal Article
In: Journal of Biomechanics, vol. 48, no. 12, pp. 3469–3477, 2015.
@article{Hernandez2015,
title = {Evaluation of a laboratory model of human head impact biomechanics},
author = {Hernandez, F and Shull, P B and Camarillo, D B},
year = {2015},
date = {2015-01-01},
journal = {Journal of Biomechanics},
volume = {48},
number = {12},
pages = {3469--3477},
abstract = {This work describes methodology for evaluating laboratory models of head impact biomechanics. Using this methodology, we investigated: how closely does twin-wire drop testing model head rotation in American football impacts? Head rotation is believed to cause mild traumatic brain injury (mTBI) but helmet safety standards only model head translations believed to cause severe TBI. It is unknown whether laboratory head impact models in safety standards, like twin-wire drop testing, reproduce six degree-of-freedom (6DOF) head impact biomechanics that may cause mTBI. We compared 6DOF measurements of 421 American football head impacts to twin-wire drop tests at impact sites and velocities weighted to represent typical field exposure. The highest rotational velocities produced by drop testing were the 74th percentile of non-injury field impacts. For a given translational acceleration level, drop testing underestimated field rotational acceleration by 46% and rotational velocity by 72%. Primary rotational acceleration frequencies were much larger in drop tests ($sim$100 Hz) than field impacts ($sim$10 Hz). Drop testing was physically unable to produce acceleration directions common in field impacts. Initial conditions of a single field impact were highly resolved in stereo high-speed video and reconstructed in a drop test. Reconstruction results reflected aggregate trends of lower amplitude rotational velocity and higher frequency rotational acceleration in drop testing, apparently due to twin-wire constraints and the absence of a neck. These results suggest twin-wire drop testing is limited in modeling head rotation during impact, and motivate continued evaluation of head impact models to ensure helmets are tested under conditions that may cause mTBI. Copyright © 2015 Elsevier Ltd. All rights reserved.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Brewster, R; Bi, W L; Smith, T R; Gormley, W B; Dunn, I F; Laws Jr., E R
The neurosurgeon as baseball fan and inventor: Walter Dandy and the batter's helmet Journal Article
In: Neurosurgical Focus, vol. 39, no. 1, 2015.
@article{Brewster2015,
title = {The neurosurgeon as baseball fan and inventor: Walter Dandy and the batter's helmet},
author = {Brewster, R and Bi, W L and Smith, T R and Gormley, W B and Dunn, I F and {Laws Jr.}, E R},
doi = {10.3171/2015.3.FOCUS1552},
year = {2015},
date = {2015-01-01},
journal = {Neurosurgical Focus},
volume = {39},
number = {1},
abstract = {Baseball maintains one of the highest impact injury rates in all athletics. A principal causative factor is the "beanball," referring to a pitch thrown directly at a batter's head. Frequent morbidities elicited demand for the development of protective gear development in the 20th century. In this setting, Dr. Walter Dandy was commissioned to design a "protective cap" in 1941. His invention became widely adopted by professional baseball and inspired subsequent generations of batting helmets. As a baseball aficionado since his youth, Walter Dandy identified a natural partnership between baseball and medical practice for the reduction of beaning-related brain injuries. This history further supports the unique position of neurosurgeons to leverage clinical insights, inform innovation, and expand service to society. © AANS, 2015.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bowman, T G; Breedlove, K M; Breedlove, E L; Dodge, T M; Nauman, E A
Impact attenuation properties of new and used lacrosse helmets Journal Article
In: Journal of Biomechanics, vol. 48, no. 14, pp. 3782–3787, 2015.
@article{Bowman2015,
title = {Impact attenuation properties of new and used lacrosse helmets},
author = {Bowman, T G and Breedlove, K M and Breedlove, E L and Dodge, T M and Nauman, E A},
doi = {10.1016/j.jbiomech.2015.08.026},
year = {2015},
date = {2015-01-01},
journal = {Journal of Biomechanics},
volume = {48},
number = {14},
pages = {3782--3787},
abstract = {The National Operating Committee on Standards for Athletic Equipment (NOCSAE) has developed impact attenuation thresholds that protective helmets worn in sport must meet to be commercially available in an attempt to prevent injury. It remains unknown how normal helmet use in athletic activity alters the force attenuation ability of lacrosse helmets. We tested 3 new and 3 randomly selected used helmets from 2 popular lacrosse models (Cascade Pro7, Cascade CPXR). All used helmets had been worn for 3 collegiate seasons prior to testing and had never been refurbished. Helmets were drop-tested using 3 prescribed impact velocities at 6 locations according to the NOCSAE lacrosse helmet standard, and we compared the Gadd Severity Index (GSI) scores between new and used helmets using a repeated measure ANOVA with location as the repeated variable and data separated by impact velocity. All 12 helmets passed the NOCSAE GSI threshold for all testing conditions; however 1 used helmet shell cracked resulting in a failed test. We found a significant main effect for helmet age at the low (F5},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gardner, E C
Head, Face, and Eye Injuries in Collegiate Women's Field Hockey Journal Article
In: American Journal of Sports Medicine, vol. 43, no. 8, pp. 2027–2034, 2015.
@article{Gardner2015a,
title = {Head, Face, and Eye Injuries in Collegiate Women's Field Hockey},
author = {Gardner, E C},
year = {2015},
date = {2015-01-01},
journal = {American Journal of Sports Medicine},
volume = {43},
number = {8},
pages = {2027--2034},
abstract = {BACKGROUND: While there is concern regarding head, face, and eye injuries in field hockey, prompting some to recommend the use of protective equipment such as goggles and helmets, little has been written about their incidence and mechanism of injury in the modern game of field hockey. The elucidation of this information will better inform the development of maximally effective injury prevention schemes to protect the athlete while maintaining the integrity of the game. PURPOSE: To determine the incidence and epidemiology of head, face, and eye injuries in United States collegiate women's field hockey players from 2004-2005 to 2008-2009. STUDY DESIGN: Descriptive epidemiological study. METHODS: All head, face, and eye injuries reported to the National Collegiate Athletic Association Injury Surveillance System for collegiate women's field hockey athletes from the 2004-2005 through 2008-2009 seasons were analyzed. Data regarding the event type, injury mechanism, body part injured, type of injury, outcome, and time lost were reviewed. The weighted injury incidence per 1000 athlete-exposures (AEs) was calculated using the exposure data set for the same years; 95% CIs were calculated based on a normal approximation to the Poisson distribution. RESULTS: There were 150 reported traumatic injuries during this time period, with a weighted occurrence of 1587.3 injuries. The overall incidence of head, face, and eye injuries in collegiate women's field hockey was 0.94 per 1000 AEs (95% CI, 0.86-1.19). Injuries to the head or face, other than the mouth, nose, and eye, accounted for 75.3% of these injuries. The incidence of eye injuries was 0.07 per 1000 AEs (95% CI, 0.03-0.12); nose injuries occurred at a rate of 0.10 per 1000 AEs (95% CI, 0.05-0.15). The rate of traumatic dental injuries was 0.06 per 1000 AEs (95% CI, 0.04-0.14). Contact with an apparatus caused 72.9% of all injuries; specifically, contact with an elevated ball accounted for 47.9% of all injuries, and contact with an elevated stick caused 21.7% of all injuries. While the majority of players suffering a head, face, or eye injury were able to return to sport that season (90.0%), the remaining athletes suffered season-ending injuries (10%). Concussions accounted for 42.8% of all head, face, and eye injuries reported (0.40 per 1000 AEs; 95% CI, 0.32-0.53). CONCLUSION: Head, face, and eye injuries occur regularly in women's field hockey. This description of the injury profile and mechanisms of injury may be used to design appropriate injury prevention schemes for the sport.Copyright © 2015 The Author(s).},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Swartz, E E; Broglio, S P; Cook, S B; Cantu, R C; Ferrara, M S; Guskiewicz, K M; Myers, J L
Early Results of a Helmetless-Tackling Intervention to Decrease Head Impacts in Football Players Journal Article
In: Journal of Athletic Training, vol. 50, no. 12, pp. 1219–1222, 2015.
@article{Swartz2015,
title = {Early Results of a Helmetless-Tackling Intervention to Decrease Head Impacts in Football Players},
author = {Swartz, E E and Broglio, S P and Cook, S B and Cantu, R C and Ferrara, M S and Guskiewicz, K M and Myers, J L},
year = {2015},
date = {2015-01-01},
journal = {Journal of Athletic Training},
volume = {50},
number = {12},
pages = {1219--1222},
abstract = {OBJECTIVE: To test a helmetless-tackling behavioral intervention for reducing head impacts in National Collegiate Athletic Association Division I football players. DESIGN: Randomized controlled clinical trial. SETTING: Football field. PATIENTS OR OTHER PARTICIPANTS: Fifty collegiate football players (intervention = 25},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Liu, C Y; Law, M; Romano, R
Rational approach to understanding and preventing sports-related traumatic brain injuries Journal Article
In: World Neurosurgery, vol. 84, no. 6, pp. 1556–1557, 2015.
@article{Liu2015,
title = {Rational approach to understanding and preventing sports-related traumatic brain injuries},
author = {Liu, C Y and Law, M and Romano, R},
doi = {10.1016/j.wneu.2015.07.076},
year = {2015},
date = {2015-01-01},
journal = {World Neurosurgery},
volume = {84},
number = {6},
pages = {1556--1557},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bartsch, A; Samorezov, S; Benzel, E; Miele, V; Brett, D
Validation of an "Intelligent Mouthguard" Single Event Head Impact Dosimeter Journal Article
In: Stapp Car Crash Journal, vol. 58, pp. 1–27, 2014.
@article{Bartsch2014,
title = {Validation of an "Intelligent Mouthguard" Single Event Head Impact Dosimeter},
author = {Bartsch, A and Samorezov, S and Benzel, E and Miele, V and Brett, D},
year = {2014},
date = {2014-01-01},
journal = {Stapp Car Crash Journal},
volume = {58},
pages = {1--27},
abstract = {Dating to Colonel John Paul Stapp MD in 1975, scientists have desired to measure live human head impacts with accuracy and precision. But no instrument exists to accurately and precisely quantify single head impact events. Our goal is to develop a practical single event head impact dosimeter known as "Intelligent Mouthguard" and quantify its performance on the benchtop, in vitro and in vivo. In the Intelligent Mouthguard hardware, limited gyroscope bandwidth requires an algorithm-based correction as a function of impact duration. After we apply gyroscope correction algorithm, Intelligent Mouthguard results at time of CG linear acceleration peak correlate to the Reference Hybrid III within our tested range of pulse durations and impact acceleration profiles in American football and Boxing in vitro tests: American football},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hogan, Ann
Sport--related concussion care in the emergency department: What every ED nurse needs to know Journal Article
In: Canadian Journal of Emergency Nursing (CJEN), vol. 36, no. 2, pp. 22–23, 2013, ISBN: 1499-3627.
@article{Hogan2013,
title = {Sport--related concussion care in the emergency department: What every ED nurse needs to know},
author = {Hogan, Ann},
isbn = {1499-3627},
year = {2013},
date = {2013-01-01},
journal = {Canadian Journal of Emergency Nursing (CJEN)},
volume = {36},
number = {2},
pages = {22--23},
publisher = {National Emergency Nurses Association},
address = {Chiliwack, British Columbia},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Beckwith, J G; Greenwald, R M; Chu, J J; Crisco, J J; Rowson, S; Duma, S M; Broglio, S P; McAllister, T W; Guskiewicz, K M; Mihalik, J P; Anderson, S; Schnebel, B; Brolinson, P G; Collins, M W
Timing of concussion diagnosis is related to head impact exposure prior to injury Journal Article
In: Medicine & Science in Sports & Exercise, vol. 45, no. 4, pp. 747–754, 2013.
@article{Beckwith2013a,
title = {Timing of concussion diagnosis is related to head impact exposure prior to injury},
author = {Beckwith, J G and Greenwald, R M and Chu, J J and Crisco, J J and Rowson, S and Duma, S M and Broglio, S P and McAllister, T W and Guskiewicz, K M and Mihalik, J P and Anderson, S and Schnebel, B and Brolinson, P G and Collins, M W},
year = {2013},
date = {2013-01-01},
journal = {Medicine \& Science in Sports \& Exercise},
volume = {45},
number = {4},
pages = {747--754},
abstract = {PURPOSE: Concussions are commonly undiagnosed in an athletic environment because the postinjury signs and symptoms may be mild, masked by the subject, or unrecognized. This study compares measures of head impact frequency, location, and kinematic response before cases of immediate and delayed concussion diagnosis. METHODS: Football players from eight collegiate and six high school teams wore instrumented helmets during play (n = 1208), of which 95 were diagnosed with concussion (105 total cases). Acceleration data recorded by the instrumented helmets were reduced to five kinematic metrics: peak linear and rotational acceleration, Gadd severity index, head injury criterion, and change in head velocity (DELTAv). In addition, each impact was assigned to one of four general location regions (front, back, side, and top), and the number of impacts sustained before injury was calculated over two periods (1 and 7 days). RESULTS: All head kinematic measures associated with injury, except peak rotational acceleration (P = 0.284), were significantly higher for cases of immediate diagnosis than delayed diagnosis (P \< 0.05). Players with delayed diagnosis sustained a significantly higher number of head impacts on the day of injury (32.9 +/- 24.9, P \< 0.001) and within 7 d of injury (69.7 +/- 43.3},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Loosemore, Michael P; Butler, Charles F; Khadri, Abdelhamid; McDonagh, David; Patel, Vimal A; Bailes, Julian E
Use of Head Guards in AIBA Boxing Tournaments--A Cross-Sectional Observational Study Journal Article
In: Clinical Journal of Sport Medicine, vol. 27, no. 1, pp. 86–88, 2017, ISBN: 1050642X.
Abstract | BibTeX | Tags: acute brain injuries, Boxing, BOXING injuries, Concussion, CONFIDENCE intervals, CROSS-sectional method, DISEASE incidence, Head Protective Devices, LONGITUDINAL method, Poisson distribution, PREVENTION, PROBABILITY theory, Relative risk (Medicine), SAFETY hats, SPORTS events, STATISTICAL hypothesis testing, traumatic brain injury, WOUNDS & injuries
@article{Loosemore2017,
title = {Use of Head Guards in AIBA Boxing Tournaments--A Cross-Sectional Observational Study},
author = {Loosemore, Michael P and Butler, Charles F and Khadri, Abdelhamid and McDonagh, David and Patel, Vimal A and Bailes, Julian E},
isbn = {1050642X},
year = {2017},
date = {2017-01-01},
journal = {Clinical Journal of Sport Medicine},
volume = {27},
number = {1},
pages = {86--88},
abstract = {Objective: This study looks at the changes in injuries after the implementation of a new rule by the International Boxing Association (AIBA) to remove head guards from its competitions. Design: A cross-sectional observational study performed prospectively. This brief report examines the removal of head guards in 2 different ways. The first was to examine the stoppages due to blows to the head by comparing World Series Boxing (WSB), without head guards, to other AIBA competitions with head guards. Secondly, we examined the last 3 world championships: 2009 and 2011 (with head guards) and 2013 (without head guards). Setting: World Series Boxing and AIBA world championship boxing. Participants: Boxers from WSB and AIBA world championships. Interventions: The information was recorded by ringside medical physicians. Main Outcome Measures: Stoppages per 10 000 rounds; stoppages per 1000 hours. Results: Both studies show that the number of stoppages due to head blows was significantly decreased without head guards. The studies also showed that there was a notable increase in cuts. Conclusions: Removing head guards may reduce the already small risk of acute brain injury in amateur boxing. [ABSTRACT FROM AUTHOR]},
keywords = {acute brain injuries, Boxing, BOXING injuries, Concussion, CONFIDENCE intervals, CROSS-sectional method, DISEASE incidence, Head Protective Devices, LONGITUDINAL method, Poisson distribution, PREVENTION, PROBABILITY theory, Relative risk (Medicine), SAFETY hats, SPORTS events, STATISTICAL hypothesis testing, traumatic brain injury, WOUNDS \& injuries},
pubstate = {published},
tppubtype = {article}
}
Bachynski, K E
Tolerable Risks? Physicians and Youth Tackle Football Journal Article
In: New England Journal of Medicine, vol. 374, no. 5, pp. 405–407, 2016.
BibTeX | Tags: *Athletic Injuries/pc [Prevention & Control], *Brain Concussion/pc [Prevention & Control], *Football/in [Injuries], *Guidelines as Topic, *Physician's Role, *SPORTS medicine, Adolescent, Brain Concussion/et [Etiology], Child, Craniocerebral Trauma/et [Etiology], Craniocerebral Trauma/pc [Prevention & Control], Head Protective Devices, Humans, Medical, pediatrics, Societies, UNITED States
@article{Bachynski2016,
title = {Tolerable Risks? Physicians and Youth Tackle Football},
author = {Bachynski, K E},
year = {2016},
date = {2016-01-01},
journal = {New England Journal of Medicine},
volume = {374},
number = {5},
pages = {405--407},
keywords = {*Athletic Injuries/pc [Prevention \& Control], *Brain Concussion/pc [Prevention \& Control], *Football/in [Injuries], *Guidelines as Topic, *Physician's Role, *SPORTS medicine, Adolescent, Brain Concussion/et [Etiology], Child, Craniocerebral Trauma/et [Etiology], Craniocerebral Trauma/pc [Prevention \& Control], Head Protective Devices, Humans, Medical, pediatrics, Societies, UNITED States},
pubstate = {published},
tppubtype = {article}
}
Stieg, P E; Perrine, K
Helmet Use and Traumatic Brain Injury in Snowboarding Journal Article
In: World Neurosurgery, vol. 86, pp. 65–68, 2016.
Links | BibTeX | Tags: brain hemorrhage, Concussion, disability, emergency ward, Female, head injury, Head Protective Devices, Helmet, human, Humans, Injuries, Male, Morbidity, MORTALITY, Neuroprotection, Review, skiing, skull fracture, Snowboarding, Traumatic, traumatic brain injury, UNITED States, winter sport
@article{Stieg2016,
title = {Helmet Use and Traumatic Brain Injury in Snowboarding},
author = {Stieg, P E and Perrine, K},
doi = {10.1016/j.wneu.2015.07.044},
year = {2016},
date = {2016-01-01},
journal = {World Neurosurgery},
volume = {86},
pages = {65--68},
keywords = {brain hemorrhage, Concussion, disability, emergency ward, Female, head injury, Head Protective Devices, Helmet, human, Humans, Injuries, Male, Morbidity, MORTALITY, Neuroprotection, Review, skiing, skull fracture, Snowboarding, Traumatic, traumatic brain injury, UNITED States, winter sport},
pubstate = {published},
tppubtype = {article}
}
Williams, R M; Dowling, M; O'Connor, K L
Head Impact Measurement Devices Journal Article
In: Sports & Health, vol. 8, no. 3, pp. 270–273, 2016.
Abstract | BibTeX | Tags: *Accelerometry, *Athletic Injuries/di [Diagnosis], *Brain Concussion/di [Diagnosis], Athletic Injuries/pp [Physiopathology], Biomechanical Phenomena, Brain Concussion/pp [Physiopathology], Head Protective Devices, Head/pp [Physiopathology], Humans
@article{Williams2016b,
title = {Head Impact Measurement Devices},
author = {Williams, R M and Dowling, M and O'Connor, K L},
year = {2016},
date = {2016-01-01},
journal = {Sports \& Health},
volume = {8},
number = {3},
pages = {270--273},
abstract = {CONTEXT: Concussive injuries are at the forefront of sports medicine research. Recently, researchers have used a variety of head- and helmet-based impact-monitoring devices to quantify impacts sustained during contact sport participation. This review provides an up-to-date collection of head accelerometer use at the youth, high school, and collegiate levels. EVIDENCE ACQUISITION: PubMed was searched for articles published between 1980 and 2015 using the terms accelerometer and concussion, impact sensor and concussion, head impact telemetry system, head impact telemetry, and linear acceleration and concussion. An additional Google search was performed to capture devices without publications. STUDY DESIGN: Clinical review. LEVEL OF EVIDENCE: Level 4. RESULTS: Twenty-four products track and/or record head impact for clinical or research use. Ten of these head impact devices have publications supporting their utility. CONCLUSION: Head impact measuring devices can describe athlete exposure in terms of magnitude and/or frequency, highlighting their utility within a multimodal approach for concussion assessment and diagnosis.},
keywords = {*Accelerometry, *Athletic Injuries/di [Diagnosis], *Brain Concussion/di [Diagnosis], Athletic Injuries/pp [Physiopathology], Biomechanical Phenomena, Brain Concussion/pp [Physiopathology], Head Protective Devices, Head/pp [Physiopathology], Humans},
pubstate = {published},
tppubtype = {article}
}
Hernandez, F; Shull, P B; Camarillo, D B
Evaluation of a laboratory model of human head impact biomechanics Journal Article
In: Journal of Biomechanics, vol. 48, no. 12, pp. 3469–3477, 2015.
Abstract | BibTeX | Tags: *HEAD, *Laboratories, *Mechanical Phenomena, *Models, Acceleration, Biological, Biomechanical Phenomena, Brain Concussion/et [Etiology], Football/in [Injuries], Head Protective Devices, Humans, Male, Neck/ph [Physiology], Rotation, SAFETY
@article{Hernandez2015,
title = {Evaluation of a laboratory model of human head impact biomechanics},
author = {Hernandez, F and Shull, P B and Camarillo, D B},
year = {2015},
date = {2015-01-01},
journal = {Journal of Biomechanics},
volume = {48},
number = {12},
pages = {3469--3477},
abstract = {This work describes methodology for evaluating laboratory models of head impact biomechanics. Using this methodology, we investigated: how closely does twin-wire drop testing model head rotation in American football impacts? Head rotation is believed to cause mild traumatic brain injury (mTBI) but helmet safety standards only model head translations believed to cause severe TBI. It is unknown whether laboratory head impact models in safety standards, like twin-wire drop testing, reproduce six degree-of-freedom (6DOF) head impact biomechanics that may cause mTBI. We compared 6DOF measurements of 421 American football head impacts to twin-wire drop tests at impact sites and velocities weighted to represent typical field exposure. The highest rotational velocities produced by drop testing were the 74th percentile of non-injury field impacts. For a given translational acceleration level, drop testing underestimated field rotational acceleration by 46% and rotational velocity by 72%. Primary rotational acceleration frequencies were much larger in drop tests ($sim$100 Hz) than field impacts ($sim$10 Hz). Drop testing was physically unable to produce acceleration directions common in field impacts. Initial conditions of a single field impact were highly resolved in stereo high-speed video and reconstructed in a drop test. Reconstruction results reflected aggregate trends of lower amplitude rotational velocity and higher frequency rotational acceleration in drop testing, apparently due to twin-wire constraints and the absence of a neck. These results suggest twin-wire drop testing is limited in modeling head rotation during impact, and motivate continued evaluation of head impact models to ensure helmets are tested under conditions that may cause mTBI. Copyright © 2015 Elsevier Ltd. All rights reserved.},
keywords = {*HEAD, *Laboratories, *Mechanical Phenomena, *Models, Acceleration, Biological, Biomechanical Phenomena, Brain Concussion/et [Etiology], Football/in [Injuries], Head Protective Devices, Humans, Male, Neck/ph [Physiology], Rotation, SAFETY},
pubstate = {published},
tppubtype = {article}
}
Brewster, R; Bi, W L; Smith, T R; Gormley, W B; Dunn, I F; Laws Jr., E R
The neurosurgeon as baseball fan and inventor: Walter Dandy and the batter's helmet Journal Article
In: Neurosurgical Focus, vol. 39, no. 1, 2015.
Abstract | Links | BibTeX | Tags: 19th Century, 20th Century, Baseball, Baseball helmet, brain concussion, Head Protective Devices, Head trauma, Helmet, HISTORY, human, Humans, Injuries, Innovation, Male, middle aged, neurosurgeon, Neurosurgeons, Protective gear, traumatic brain injury, Walter dandy
@article{Brewster2015,
title = {The neurosurgeon as baseball fan and inventor: Walter Dandy and the batter's helmet},
author = {Brewster, R and Bi, W L and Smith, T R and Gormley, W B and Dunn, I F and {Laws Jr.}, E R},
doi = {10.3171/2015.3.FOCUS1552},
year = {2015},
date = {2015-01-01},
journal = {Neurosurgical Focus},
volume = {39},
number = {1},
abstract = {Baseball maintains one of the highest impact injury rates in all athletics. A principal causative factor is the "beanball," referring to a pitch thrown directly at a batter's head. Frequent morbidities elicited demand for the development of protective gear development in the 20th century. In this setting, Dr. Walter Dandy was commissioned to design a "protective cap" in 1941. His invention became widely adopted by professional baseball and inspired subsequent generations of batting helmets. As a baseball aficionado since his youth, Walter Dandy identified a natural partnership between baseball and medical practice for the reduction of beaning-related brain injuries. This history further supports the unique position of neurosurgeons to leverage clinical insights, inform innovation, and expand service to society. © AANS, 2015.},
keywords = {19th Century, 20th Century, Baseball, Baseball helmet, brain concussion, Head Protective Devices, Head trauma, Helmet, HISTORY, human, Humans, Injuries, Innovation, Male, middle aged, neurosurgeon, Neurosurgeons, Protective gear, traumatic brain injury, Walter dandy},
pubstate = {published},
tppubtype = {article}
}
Bowman, T G; Breedlove, K M; Breedlove, E L; Dodge, T M; Nauman, E A
Impact attenuation properties of new and used lacrosse helmets Journal Article
In: Journal of Biomechanics, vol. 48, no. 14, pp. 3782–3787, 2015.
Abstract | Links | BibTeX | Tags: Accident prevention, Article, Athletic Injuries, attenuation, brain concussion, Cracks, Drop test, Drops, Equipment Design, Gadd Severity Index, head impact, Head Protective Devices, Helmet, Helmet evaluation, human, Humans, Injuries, lacrosse helmet, Materials testing, mechanical stress, priority journal, protective equipment, racquet sport, Racquet Sports, recertification, rigidity, Safety devices, Severity index, Sporting goods, Sports Equipment, standards, stress strain relationship, velocity
@article{Bowman2015,
title = {Impact attenuation properties of new and used lacrosse helmets},
author = {Bowman, T G and Breedlove, K M and Breedlove, E L and Dodge, T M and Nauman, E A},
doi = {10.1016/j.jbiomech.2015.08.026},
year = {2015},
date = {2015-01-01},
journal = {Journal of Biomechanics},
volume = {48},
number = {14},
pages = {3782--3787},
abstract = {The National Operating Committee on Standards for Athletic Equipment (NOCSAE) has developed impact attenuation thresholds that protective helmets worn in sport must meet to be commercially available in an attempt to prevent injury. It remains unknown how normal helmet use in athletic activity alters the force attenuation ability of lacrosse helmets. We tested 3 new and 3 randomly selected used helmets from 2 popular lacrosse models (Cascade Pro7, Cascade CPXR). All used helmets had been worn for 3 collegiate seasons prior to testing and had never been refurbished. Helmets were drop-tested using 3 prescribed impact velocities at 6 locations according to the NOCSAE lacrosse helmet standard, and we compared the Gadd Severity Index (GSI) scores between new and used helmets using a repeated measure ANOVA with location as the repeated variable and data separated by impact velocity. All 12 helmets passed the NOCSAE GSI threshold for all testing conditions; however 1 used helmet shell cracked resulting in a failed test. We found a significant main effect for helmet age at the low (F5},
keywords = {Accident prevention, Article, Athletic Injuries, attenuation, brain concussion, Cracks, Drop test, Drops, Equipment Design, Gadd Severity Index, head impact, Head Protective Devices, Helmet, Helmet evaluation, human, Humans, Injuries, lacrosse helmet, Materials testing, mechanical stress, priority journal, protective equipment, racquet sport, Racquet Sports, recertification, rigidity, Safety devices, Severity index, Sporting goods, Sports Equipment, standards, stress strain relationship, velocity},
pubstate = {published},
tppubtype = {article}
}
Gardner, E C
Head, Face, and Eye Injuries in Collegiate Women's Field Hockey Journal Article
In: American Journal of Sports Medicine, vol. 43, no. 8, pp. 2027–2034, 2015.
Abstract | BibTeX | Tags: *Craniocerebral Trauma/ep [Epidemiology], *Eye Injuries/ep [Epidemiology], *Facial Injuries/ep [Epidemiology], *Hockey/in [Injuries], Brain Concussion/ep [Epidemiology], Craniocerebral Trauma/pc [Prevention & Control], Eye Injuries/pc [Prevention & Control], Eye Protective Devices, Facial Injuries/pc [Prevention & Control], Female, Head Protective Devices, Humans, Incidence, Students, United States/ep [Epidemiology], Universities
@article{Gardner2015a,
title = {Head, Face, and Eye Injuries in Collegiate Women's Field Hockey},
author = {Gardner, E C},
year = {2015},
date = {2015-01-01},
journal = {American Journal of Sports Medicine},
volume = {43},
number = {8},
pages = {2027--2034},
abstract = {BACKGROUND: While there is concern regarding head, face, and eye injuries in field hockey, prompting some to recommend the use of protective equipment such as goggles and helmets, little has been written about their incidence and mechanism of injury in the modern game of field hockey. The elucidation of this information will better inform the development of maximally effective injury prevention schemes to protect the athlete while maintaining the integrity of the game. PURPOSE: To determine the incidence and epidemiology of head, face, and eye injuries in United States collegiate women's field hockey players from 2004-2005 to 2008-2009. STUDY DESIGN: Descriptive epidemiological study. METHODS: All head, face, and eye injuries reported to the National Collegiate Athletic Association Injury Surveillance System for collegiate women's field hockey athletes from the 2004-2005 through 2008-2009 seasons were analyzed. Data regarding the event type, injury mechanism, body part injured, type of injury, outcome, and time lost were reviewed. The weighted injury incidence per 1000 athlete-exposures (AEs) was calculated using the exposure data set for the same years; 95% CIs were calculated based on a normal approximation to the Poisson distribution. RESULTS: There were 150 reported traumatic injuries during this time period, with a weighted occurrence of 1587.3 injuries. The overall incidence of head, face, and eye injuries in collegiate women's field hockey was 0.94 per 1000 AEs (95% CI, 0.86-1.19). Injuries to the head or face, other than the mouth, nose, and eye, accounted for 75.3% of these injuries. The incidence of eye injuries was 0.07 per 1000 AEs (95% CI, 0.03-0.12); nose injuries occurred at a rate of 0.10 per 1000 AEs (95% CI, 0.05-0.15). The rate of traumatic dental injuries was 0.06 per 1000 AEs (95% CI, 0.04-0.14). Contact with an apparatus caused 72.9% of all injuries; specifically, contact with an elevated ball accounted for 47.9% of all injuries, and contact with an elevated stick caused 21.7% of all injuries. While the majority of players suffering a head, face, or eye injury were able to return to sport that season (90.0%), the remaining athletes suffered season-ending injuries (10%). Concussions accounted for 42.8% of all head, face, and eye injuries reported (0.40 per 1000 AEs; 95% CI, 0.32-0.53). CONCLUSION: Head, face, and eye injuries occur regularly in women's field hockey. This description of the injury profile and mechanisms of injury may be used to design appropriate injury prevention schemes for the sport.Copyright © 2015 The Author(s).},
keywords = {*Craniocerebral Trauma/ep [Epidemiology], *Eye Injuries/ep [Epidemiology], *Facial Injuries/ep [Epidemiology], *Hockey/in [Injuries], Brain Concussion/ep [Epidemiology], Craniocerebral Trauma/pc [Prevention \& Control], Eye Injuries/pc [Prevention \& Control], Eye Protective Devices, Facial Injuries/pc [Prevention \& Control], Female, Head Protective Devices, Humans, Incidence, Students, United States/ep [Epidemiology], Universities},
pubstate = {published},
tppubtype = {article}
}
Swartz, E E; Broglio, S P; Cook, S B; Cantu, R C; Ferrara, M S; Guskiewicz, K M; Myers, J L
Early Results of a Helmetless-Tackling Intervention to Decrease Head Impacts in Football Players Journal Article
In: Journal of Athletic Training, vol. 50, no. 12, pp. 1219–1222, 2015.
Abstract | BibTeX | Tags: *Craniocerebral Trauma/pc [Prevention & Control], *Football/in [Injuries], *Physical Education and Training/mt [Methods], Acceleration, Head Protective Devices, Humans, Male, Prospective Studies, Universities
@article{Swartz2015,
title = {Early Results of a Helmetless-Tackling Intervention to Decrease Head Impacts in Football Players},
author = {Swartz, E E and Broglio, S P and Cook, S B and Cantu, R C and Ferrara, M S and Guskiewicz, K M and Myers, J L},
year = {2015},
date = {2015-01-01},
journal = {Journal of Athletic Training},
volume = {50},
number = {12},
pages = {1219--1222},
abstract = {OBJECTIVE: To test a helmetless-tackling behavioral intervention for reducing head impacts in National Collegiate Athletic Association Division I football players. DESIGN: Randomized controlled clinical trial. SETTING: Football field. PATIENTS OR OTHER PARTICIPANTS: Fifty collegiate football players (intervention = 25},
keywords = {*Craniocerebral Trauma/pc [Prevention \& Control], *Football/in [Injuries], *Physical Education and Training/mt [Methods], Acceleration, Head Protective Devices, Humans, Male, Prospective Studies, Universities},
pubstate = {published},
tppubtype = {article}
}
Liu, C Y; Law, M; Romano, R
Rational approach to understanding and preventing sports-related traumatic brain injuries Journal Article
In: World Neurosurgery, vol. 84, no. 6, pp. 1556–1557, 2015.
Links | BibTeX | Tags: accelerometer, ACCELEROMETRY, biological marker, brain, brain concussion, brain hemorrhage, cognitive defect, Diffusion Tensor Imaging, Electroencephalography, emergency health service, Female, Head Protective Devices, Helmet, high risk patient, human, Humans, Injuries, Male, neuroimaging, neuromodulation, neuroprotective agent, nuclear magnetic resonance imaging, Occupational Exposure, protective equipment, Review, risk factor, risk reduction, SAFETY, skiing, Snowboarding, sport injury, Traumatic, traumatic brain injury, viscoelastic substance
@article{Liu2015,
title = {Rational approach to understanding and preventing sports-related traumatic brain injuries},
author = {Liu, C Y and Law, M and Romano, R},
doi = {10.1016/j.wneu.2015.07.076},
year = {2015},
date = {2015-01-01},
journal = {World Neurosurgery},
volume = {84},
number = {6},
pages = {1556--1557},
keywords = {accelerometer, ACCELEROMETRY, biological marker, brain, brain concussion, brain hemorrhage, cognitive defect, Diffusion Tensor Imaging, Electroencephalography, emergency health service, Female, Head Protective Devices, Helmet, high risk patient, human, Humans, Injuries, Male, neuroimaging, neuromodulation, neuroprotective agent, nuclear magnetic resonance imaging, Occupational Exposure, protective equipment, Review, risk factor, risk reduction, SAFETY, skiing, Snowboarding, sport injury, Traumatic, traumatic brain injury, viscoelastic substance},
pubstate = {published},
tppubtype = {article}
}
Bartsch, A; Samorezov, S; Benzel, E; Miele, V; Brett, D
Validation of an "Intelligent Mouthguard" Single Event Head Impact Dosimeter Journal Article
In: Stapp Car Crash Journal, vol. 58, pp. 1–27, 2014.
Abstract | BibTeX | Tags: *Acceleration, *Boxing, *Brain Injuries, *Football, *Mouth Protectors, *Telemetry, ALGORITHMS, Biomechanical Phenomena/ph [Physiology], Boxing/in [Injuries], Boxing/ph [Physiology], Brain Injuries/di [Diagnosis], Brain Injuries/et [Etiology], Brain Injuries/pc [Prevention & Control], Brain Injuries/pp [Physiopathology], finite element analysis, Football/in [Injuries], Football/ph [Physiology], Head Protective Devices, Humans, Reproducibility of Results, Telemetry/is [Instrumentation], Telemetry/mt [Methods]
@article{Bartsch2014,
title = {Validation of an "Intelligent Mouthguard" Single Event Head Impact Dosimeter},
author = {Bartsch, A and Samorezov, S and Benzel, E and Miele, V and Brett, D},
year = {2014},
date = {2014-01-01},
journal = {Stapp Car Crash Journal},
volume = {58},
pages = {1--27},
abstract = {Dating to Colonel John Paul Stapp MD in 1975, scientists have desired to measure live human head impacts with accuracy and precision. But no instrument exists to accurately and precisely quantify single head impact events. Our goal is to develop a practical single event head impact dosimeter known as "Intelligent Mouthguard" and quantify its performance on the benchtop, in vitro and in vivo. In the Intelligent Mouthguard hardware, limited gyroscope bandwidth requires an algorithm-based correction as a function of impact duration. After we apply gyroscope correction algorithm, Intelligent Mouthguard results at time of CG linear acceleration peak correlate to the Reference Hybrid III within our tested range of pulse durations and impact acceleration profiles in American football and Boxing in vitro tests: American football},
keywords = {*Acceleration, *Boxing, *Brain Injuries, *Football, *Mouth Protectors, *Telemetry, ALGORITHMS, Biomechanical Phenomena/ph [Physiology], Boxing/in [Injuries], Boxing/ph [Physiology], Brain Injuries/di [Diagnosis], Brain Injuries/et [Etiology], Brain Injuries/pc [Prevention \& Control], Brain Injuries/pp [Physiopathology], finite element analysis, Football/in [Injuries], Football/ph [Physiology], Head Protective Devices, Humans, Reproducibility of Results, Telemetry/is [Instrumentation], Telemetry/mt [Methods]},
pubstate = {published},
tppubtype = {article}
}
Hogan, Ann
Sport--related concussion care in the emergency department: What every ED nurse needs to know Journal Article
In: Canadian Journal of Emergency Nursing (CJEN), vol. 36, no. 2, pp. 22–23, 2013, ISBN: 1499-3627.
BibTeX | Tags: Athletic Injuries, Brain Injuries, Brain Injuries -- Classification, Brain Injuries -- Complications, Brain Injuries -- Diagnosis, Brain Injuries -- Prevention and Control, Brain Injuries -- Symptoms, Brain Injuries -- Therapy, emergency care, Emergency Nursing, Emergency Service, Head Protective Devices, Information Resources, Nursing Role, World Wide Web
@article{Hogan2013,
title = {Sport--related concussion care in the emergency department: What every ED nurse needs to know},
author = {Hogan, Ann},
isbn = {1499-3627},
year = {2013},
date = {2013-01-01},
journal = {Canadian Journal of Emergency Nursing (CJEN)},
volume = {36},
number = {2},
pages = {22--23},
publisher = {National Emergency Nurses Association},
address = {Chiliwack, British Columbia},
keywords = {Athletic Injuries, Brain Injuries, Brain Injuries -- Classification, Brain Injuries -- Complications, Brain Injuries -- Diagnosis, Brain Injuries -- Prevention and Control, Brain Injuries -- Symptoms, Brain Injuries -- Therapy, emergency care, Emergency Nursing, Emergency Service, Head Protective Devices, Information Resources, Nursing Role, World Wide Web},
pubstate = {published},
tppubtype = {article}
}
Beckwith, J G; Greenwald, R M; Chu, J J; Crisco, J J; Rowson, S; Duma, S M; Broglio, S P; McAllister, T W; Guskiewicz, K M; Mihalik, J P; Anderson, S; Schnebel, B; Brolinson, P G; Collins, M W
Timing of concussion diagnosis is related to head impact exposure prior to injury Journal Article
In: Medicine & Science in Sports & Exercise, vol. 45, no. 4, pp. 747–754, 2013.
Abstract | BibTeX | Tags: *Brain Concussion/di [Diagnosis], *Brain Concussion/et [Etiology], *Delayed Diagnosis, *Football/in [Injuries], *HEAD injuries, Adolescent, Closed/ep [Epidemiology], ENVIRONMENTAL exposure, Head Protective Devices, Humans, Male, Telemetry/is [Instrumentation], Time Factors, Young Adult
@article{Beckwith2013a,
title = {Timing of concussion diagnosis is related to head impact exposure prior to injury},
author = {Beckwith, J G and Greenwald, R M and Chu, J J and Crisco, J J and Rowson, S and Duma, S M and Broglio, S P and McAllister, T W and Guskiewicz, K M and Mihalik, J P and Anderson, S and Schnebel, B and Brolinson, P G and Collins, M W},
year = {2013},
date = {2013-01-01},
journal = {Medicine \& Science in Sports \& Exercise},
volume = {45},
number = {4},
pages = {747--754},
abstract = {PURPOSE: Concussions are commonly undiagnosed in an athletic environment because the postinjury signs and symptoms may be mild, masked by the subject, or unrecognized. This study compares measures of head impact frequency, location, and kinematic response before cases of immediate and delayed concussion diagnosis. METHODS: Football players from eight collegiate and six high school teams wore instrumented helmets during play (n = 1208), of which 95 were diagnosed with concussion (105 total cases). Acceleration data recorded by the instrumented helmets were reduced to five kinematic metrics: peak linear and rotational acceleration, Gadd severity index, head injury criterion, and change in head velocity (DELTAv). In addition, each impact was assigned to one of four general location regions (front, back, side, and top), and the number of impacts sustained before injury was calculated over two periods (1 and 7 days). RESULTS: All head kinematic measures associated with injury, except peak rotational acceleration (P = 0.284), were significantly higher for cases of immediate diagnosis than delayed diagnosis (P \< 0.05). Players with delayed diagnosis sustained a significantly higher number of head impacts on the day of injury (32.9 +/- 24.9, P \< 0.001) and within 7 d of injury (69.7 +/- 43.3},
keywords = {*Brain Concussion/di [Diagnosis], *Brain Concussion/et [Etiology], *Delayed Diagnosis, *Football/in [Injuries], *HEAD injuries, Adolescent, Closed/ep [Epidemiology], ENVIRONMENTAL exposure, Head Protective Devices, Humans, Male, Telemetry/is [Instrumentation], Time Factors, Young Adult},
pubstate = {published},
tppubtype = {article}
}