Brett, Benjamin L; Smyk, Nathan; Solomon, Gary; Baughman, Brandon C; Schatz, Philip
In: Archives of Clinical Neuropsychology, vol. 31, no. 8, pp. 904–914, 2016, ISBN: 08876177.
Abstract | Links | BibTeX | Tags: assessment, Childhood brain insult, Cognitive Ability, COGNITIVE testing, head injury, HIGH school athletes, Intraclass correlation, Norms/normative studies, Practice effects/reliable change, psychology, STATISTICAL reliability, Test construction, traumatic brain injury
@article{Brett2016,
title = {Long-term Stability and Reliability of Baseline Cognitive Assessments in High School Athletes Using ImPACT at 1-, 2-, and 3-year Test-Retest Intervals},
author = {Brett, Benjamin L and Smyk, Nathan and Solomon, Gary and Baughman, Brandon C and Schatz, Philip},
doi = {10.1093/arclin/acw055},
isbn = {08876177},
year = {2016},
date = {2016-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {31},
number = {8},
pages = {904--914},
abstract = {Objective: The ImPACT (Immediate Post-Concussion Assessment and Cognitive Testing) neurocognitive testing battery is a widely used tool used for the assessment and management of sports-related concussion. Research on the stability of ImPACT in high school athletes at a 1- and 2-year intervals have been inconsistent, requiring further investigation. We documented 1-, 2-, and 3-year test-retest reliability of repeated ImPACT baseline assessments in a sample of high school athletes, using multiple statistical methods for examining stability. Methods: A total of 1,510 high school athletes completed baseline cognitive testing using online ImPACT test battery at three time periods of approximately 1- (N = 250), 2- (N = 1146), and 3-year (N = 114) intervals. No participant sustained a concussion between assessments. Results: Intraclass correlation coefficients (ICCs) ranged in composite scores from 0.36 to 0.90 and showed little change as intervals between assessments increased. Reliable change indices and regression-based measures (RBMs) examining the test-retest stability demonstrated a lack of significant change in composite scores across the various time intervals, with very few cases (0%-6%) falling outside of 95% confidence intervals. Conclusion: The results suggest ImPACT composites scores remain considerably stability across 1-, 2-, and 3-year test-retest intervals in high school athletes, when considering both ICCs and RBM. Annually ascertaining baseline scores continues to be optimal for ensuring accurate and individualized management of injury for concussed athletes. For instances in which more recent baselines are not available (1-2 years), clinicians should seek to utilize more conservative range estimates in determining the presence of clinically meaningful change in cognitive performance.},
keywords = {assessment, Childhood brain insult, Cognitive Ability, COGNITIVE testing, head injury, HIGH school athletes, Intraclass correlation, Norms/normative studies, Practice effects/reliable change, psychology, STATISTICAL reliability, Test construction, traumatic brain injury},
pubstate = {published},
tppubtype = {article}
}
Holtkamp, M D; Grimes, J; Ling, G
Concussion in the Military: an Evidence-Base Review of mTBI in US Military Personnel Focused on Posttraumatic Headache Journal Article
In: Current Pain & Headache Reports, vol. 20, no. 6, 2016.
Abstract | Links | BibTeX | Tags: apolipoprotein E4, assessment, biological marker, botulinum toxin, brain concussion, calcitonin gene related peptide receptor antagonis, comorbidity, Concussion, depression, DIAGNOSTIC imaging, disease course, genetic polymorphism, genetic predisposition, glial fibrillary acidic protein, headache, Headache disorder, human, MANAGEMENT, migraine, Military personnel, mTBI, neuroimaging, Pathophysiology, postconcussion syndrome, posttraumatic headache, posttraumatic stress disorder, Prognosis, Review, serotonin 1 agonist, serotonin 1F agonist, soldier, traumatic brain injury, Treatment, tricyclic antidepressant agent, triptan derivative, unclassified drug, UNITED States
@article{Holtkamp2016,
title = {Concussion in the Military: an Evidence-Base Review of mTBI in US Military Personnel Focused on Posttraumatic Headache},
author = {Holtkamp, M D and Grimes, J and Ling, G},
doi = {10.1007/s11916-016-0572-x},
year = {2016},
date = {2016-01-01},
journal = {Current Pain \& Headache Reports},
volume = {20},
number = {6},
abstract = {Traumatic brain injury (TBI) is defined as an alteration in brain function caused by an external force. Mild TBI or concussion is now well recognized to be a risk of military service as well as participation in athletic sports such as football. Posttraumatic headache (PTH) is the most common symptom after mTBI in US service members. PTH most commonly presents with migraine-like headache features. The following is an overview of the epidemiology, pathophysiology, clinical course, prognosis, complications, and treatment of mTBI and associated comorbidities with a focus on PTH. There is a particular emphasis on emerging evidence-based clinical practice. One important medical consequence of the recognition that mTBI is a highly prevalent among military service members is that the Department of Defense (DoD) is dedicating significant financial and intellectual resources to better understanding and developing treatments for TBI. The identification of the importance of TBI among the US military population has had the added benefit of increasing awareness of this condition among civilian populations, particularly those engaged in both professional and youth sports. The NIH and NSF are also supporting important TBI research. President Obama’s Brain Initiative is also providing additional impetus for these efforts. Unfortunately, the understanding of the acute and chronic effects of mTBI on the brain remains limited. Gratefully, there is hope that through innovative research, there will be advances in elucidating the underlying pathophysiology, which will lead to clinical and prognostic indicators, ultimately resulting in new treatment options for this very complicated set of disorders. © 2016, Springer Science+Business Media New York (outside the USA).},
keywords = {apolipoprotein E4, assessment, biological marker, botulinum toxin, brain concussion, calcitonin gene related peptide receptor antagonis, comorbidity, Concussion, depression, DIAGNOSTIC imaging, disease course, genetic polymorphism, genetic predisposition, glial fibrillary acidic protein, headache, Headache disorder, human, MANAGEMENT, migraine, Military personnel, mTBI, neuroimaging, Pathophysiology, postconcussion syndrome, posttraumatic headache, posttraumatic stress disorder, Prognosis, Review, serotonin 1 agonist, serotonin 1F agonist, soldier, traumatic brain injury, Treatment, tricyclic antidepressant agent, triptan derivative, unclassified drug, UNITED States},
pubstate = {published},
tppubtype = {article}
}
Howitt, Scott; Brommer, Robert; Fowler, Justin; Gerwing, Logan; Payne, Julian; DeGraauw, Christopher
The utility of the King-Devick test as a sideline assessment tool for sport-related concussions: a narrative review Journal Article
In: Journal of the Canadian Chiropractic Association, vol. 60, no. 4, pp. 322–329, 2016, ISBN: 00083194.
Abstract | BibTeX | Tags: assessment, auxiliaire, BRAIN -- Concussion -- Diagnosis, chiropractic, chiropratique, CINAHL (Information retrieval system), COLLEGE athletes, commotion cérébrale, Concussion, CONFIDENCE intervals, DATA analysis -- Software, dépistage, DESCRIPTIVE statistics, EQUIPMENT & supplies, EVALUATION, INFORMATION storage & retrieval systems, Information storage & retrieval systems -- Medical, King-Devick test, MANN Whitney U Test, Medical screening, Medline, neurologic examination, ODDS ratio, PRE-tests & post-tests, PROBABILITY theory, screening, Sideline, Sports, SPORTS injuries, SYSTEMATIC reviews (Medical research), test King-Devick
@article{Howitt2016,
title = {The utility of the King-Devick test as a sideline assessment tool for sport-related concussions: a narrative review},
author = {Howitt, Scott and Brommer, Robert and Fowler, Justin and Gerwing, Logan and Payne, Julian and DeGraauw, Christopher},
isbn = {00083194},
year = {2016},
date = {2016-01-01},
journal = {Journal of the Canadian Chiropractic Association},
volume = {60},
number = {4},
pages = {322--329},
publisher = {Canadian Chiropractic Association},
abstract = {Objective: The objective of this paper is to review existing literature surrounding the utility of the King-Devick test which is a commonly used sideline assessment tool for sport-related concussions. Methods: A review of the literature was performed using MEDLINE, CINHAL, and SportDiscus databases. The search was performed from the beginning of the record through November 16th, 2015. Results: This search strategy yielded 27 articles from aforementioned databases. Further searching in The Cochrane Library with King-Devick AND Concuss* search terms yielded one additional article, summing a total of 28 articles. After removal of duplicates and implementation of the inclusion/exclusion criteria, 8 articles for extensively reviewed. Conclusion: This narrative review suggests that the King-Devick test is an efficient sideline assessment tool for sport-related concussions. However, we recommend that the King-Devick should be used as a sideline screening tool, not a concussion diagnosis tool at this time. A proper baseline time including multiple tests may be recommended to negate the learning affect and to have a reliable baseline in which to measure from for future reference. A three second difference appears appropriate to identify the possibility of concussion and to remove an athlete from play. At this time, the athlete should be monitored and further evaluated as symptoms are sometimes delayed. We suggest that further research may be useful to better determine the efficacy of the K-D test in detecting concussions across a broader range of athletes and sports. We also suggest further research may investigate the K-D test a potential return-to-play tool for clinicians and medical personnel.},
keywords = {assessment, auxiliaire, BRAIN -- Concussion -- Diagnosis, chiropractic, chiropratique, CINAHL (Information retrieval system), COLLEGE athletes, commotion c\'{e}r\'{e}brale, Concussion, CONFIDENCE intervals, DATA analysis -- Software, d\'{e}pistage, DESCRIPTIVE statistics, EQUIPMENT \& supplies, EVALUATION, INFORMATION storage \& retrieval systems, Information storage \& retrieval systems -- Medical, King-Devick test, MANN Whitney U Test, Medical screening, Medline, neurologic examination, ODDS ratio, PRE-tests \& post-tests, PROBABILITY theory, screening, Sideline, Sports, SPORTS injuries, SYSTEMATIC reviews (Medical research), test King-Devick},
pubstate = {published},
tppubtype = {article}
}
Patricios, Jon; Collins, Robert; Branfield, Andrew; Roberts, Craig; Kohler, Ryan
The sports concussion note: should SCAT become SCOAT? Journal Article
In: British Journal of Sports Medicine, vol. 46, pp. 198–201, 2012.
Abstract | BibTeX | Tags: assessment
@article{Patricios2012,
title = {The sports concussion note: should SCAT become SCOAT?},
author = {Patricios, Jon and Collins, Robert and Branfield, Andrew and Roberts, Craig and Kohler, Ryan},
year = {2012},
date = {2012-01-01},
journal = {British Journal of Sports Medicine},
volume = {46},
pages = {198--201},
address = {Sports Concussion South Africa and Section Sports Medicine, Department of Health Sciences, University of Pretoria, Pretoria 1267, South Africa, Sports Concussion South Africa. jpat@mweb.co.za.},
abstract = {Sports concussion research and clinical guidelines have evolved rapidly. The most recent concussion consensus statement and guidelines (Zurich, 2008) provided clinicians with the Sports Concussion Assessment Tool version 2 (SCAT2) as a clinical template for the assessment of acute concussion. For the subsequent serial examinations required for the complete assessment of the concussed athlete, SCAT2 may be inadequate. This paper describes the experience and suggestions of South African sports physicians in evolving a more comprehensive clinical evaluation tool and record of patient care, the Sports Concussion Office Assessment Tool.},
keywords = {assessment},
pubstate = {published},
tppubtype = {article}
}
Schneiders, A G; Sullivan, S J; Handcock, P; Gray, A; McCrory, P R
Sports concussion assessment: the effect of exercise on dynamic and static balance Journal Article
In: Scandinavian Journal of Medicine & Science in Sports, vol. 22, pp. 85–90, 2012.
Abstract | BibTeX | Tags: assessment
@article{Schneiders2012,
title = {Sports concussion assessment: the effect of exercise on dynamic and static balance},
author = {Schneiders, A G and Sullivan, S J and Handcock, P and Gray, A and McCrory, P R},
year = {2012},
date = {2012-01-01},
journal = {Scandinavian Journal of Medicine \& Science in Sports},
volume = {22},
pages = {85--90},
address = {Center for Physiotherapy Research, University of Otago, Dunedin, New Zealand. tony.schneiders@otago.ac.nz},
abstract = {This study determined the effect of exercise on measures of static and dynamic balance used in the assessment of sports-related concussion (SRC). A balanced three-group cross-over randomized design was used with three levels of exercise verified by blood-lactate, heart rate and "perceived-exertion": no exercise/rest (NE), moderate-intensity exercise (ME), and high-intensity exercise (HE). Participants performed two timed balance tasks: tandem gait (TG) and single-leg stance (SLS); pre- and post-exercise and 15 min after exercise. Linear mixed-models with adjusted means and contrasts compared exercise effects. Ninety asymptomatic participants (45[MALE SIGN (present in WGL4)]:45[FEMALE SIGN (present in WGL4)]) were recruited. When times were contrasted with NE; HE resulted in a significant decrease in SLS (P\<0.001) and TG (P\<0.001) performance immediately following exercise. Fifteen minutes of recovery improved SLS (P\<0.001) and TG (P=0.011) from post-exercise performance. ME caused a significant decrease in performance in SLS (P=0.038) but not TG (P=0.428). No statistically significant change occurred following ME in any tasks after 15-min recovery (SLS P=0.064; TG P=0.495). Test-retest reliability was considerably higher for the dynamic task compared with the static task. The reliability of static and dynamic balance tasks, and the change in performance following exercise, have implications for the immediate assessment of SRC, as these measures are utilized in concussion assessment instruments.},
keywords = {assessment},
pubstate = {published},
tppubtype = {article}
}
Brett, Benjamin L; Smyk, Nathan; Solomon, Gary; Baughman, Brandon C; Schatz, Philip
In: Archives of Clinical Neuropsychology, vol. 31, no. 8, pp. 904–914, 2016, ISBN: 08876177.
@article{Brett2016,
title = {Long-term Stability and Reliability of Baseline Cognitive Assessments in High School Athletes Using ImPACT at 1-, 2-, and 3-year Test-Retest Intervals},
author = {Brett, Benjamin L and Smyk, Nathan and Solomon, Gary and Baughman, Brandon C and Schatz, Philip},
doi = {10.1093/arclin/acw055},
isbn = {08876177},
year = {2016},
date = {2016-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {31},
number = {8},
pages = {904--914},
abstract = {Objective: The ImPACT (Immediate Post-Concussion Assessment and Cognitive Testing) neurocognitive testing battery is a widely used tool used for the assessment and management of sports-related concussion. Research on the stability of ImPACT in high school athletes at a 1- and 2-year intervals have been inconsistent, requiring further investigation. We documented 1-, 2-, and 3-year test-retest reliability of repeated ImPACT baseline assessments in a sample of high school athletes, using multiple statistical methods for examining stability. Methods: A total of 1,510 high school athletes completed baseline cognitive testing using online ImPACT test battery at three time periods of approximately 1- (N = 250), 2- (N = 1146), and 3-year (N = 114) intervals. No participant sustained a concussion between assessments. Results: Intraclass correlation coefficients (ICCs) ranged in composite scores from 0.36 to 0.90 and showed little change as intervals between assessments increased. Reliable change indices and regression-based measures (RBMs) examining the test-retest stability demonstrated a lack of significant change in composite scores across the various time intervals, with very few cases (0%-6%) falling outside of 95% confidence intervals. Conclusion: The results suggest ImPACT composites scores remain considerably stability across 1-, 2-, and 3-year test-retest intervals in high school athletes, when considering both ICCs and RBM. Annually ascertaining baseline scores continues to be optimal for ensuring accurate and individualized management of injury for concussed athletes. For instances in which more recent baselines are not available (1-2 years), clinicians should seek to utilize more conservative range estimates in determining the presence of clinically meaningful change in cognitive performance.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Holtkamp, M D; Grimes, J; Ling, G
Concussion in the Military: an Evidence-Base Review of mTBI in US Military Personnel Focused on Posttraumatic Headache Journal Article
In: Current Pain & Headache Reports, vol. 20, no. 6, 2016.
@article{Holtkamp2016,
title = {Concussion in the Military: an Evidence-Base Review of mTBI in US Military Personnel Focused on Posttraumatic Headache},
author = {Holtkamp, M D and Grimes, J and Ling, G},
doi = {10.1007/s11916-016-0572-x},
year = {2016},
date = {2016-01-01},
journal = {Current Pain \& Headache Reports},
volume = {20},
number = {6},
abstract = {Traumatic brain injury (TBI) is defined as an alteration in brain function caused by an external force. Mild TBI or concussion is now well recognized to be a risk of military service as well as participation in athletic sports such as football. Posttraumatic headache (PTH) is the most common symptom after mTBI in US service members. PTH most commonly presents with migraine-like headache features. The following is an overview of the epidemiology, pathophysiology, clinical course, prognosis, complications, and treatment of mTBI and associated comorbidities with a focus on PTH. There is a particular emphasis on emerging evidence-based clinical practice. One important medical consequence of the recognition that mTBI is a highly prevalent among military service members is that the Department of Defense (DoD) is dedicating significant financial and intellectual resources to better understanding and developing treatments for TBI. The identification of the importance of TBI among the US military population has had the added benefit of increasing awareness of this condition among civilian populations, particularly those engaged in both professional and youth sports. The NIH and NSF are also supporting important TBI research. President Obama’s Brain Initiative is also providing additional impetus for these efforts. Unfortunately, the understanding of the acute and chronic effects of mTBI on the brain remains limited. Gratefully, there is hope that through innovative research, there will be advances in elucidating the underlying pathophysiology, which will lead to clinical and prognostic indicators, ultimately resulting in new treatment options for this very complicated set of disorders. © 2016, Springer Science+Business Media New York (outside the USA).},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Howitt, Scott; Brommer, Robert; Fowler, Justin; Gerwing, Logan; Payne, Julian; DeGraauw, Christopher
The utility of the King-Devick test as a sideline assessment tool for sport-related concussions: a narrative review Journal Article
In: Journal of the Canadian Chiropractic Association, vol. 60, no. 4, pp. 322–329, 2016, ISBN: 00083194.
@article{Howitt2016,
title = {The utility of the King-Devick test as a sideline assessment tool for sport-related concussions: a narrative review},
author = {Howitt, Scott and Brommer, Robert and Fowler, Justin and Gerwing, Logan and Payne, Julian and DeGraauw, Christopher},
isbn = {00083194},
year = {2016},
date = {2016-01-01},
journal = {Journal of the Canadian Chiropractic Association},
volume = {60},
number = {4},
pages = {322--329},
publisher = {Canadian Chiropractic Association},
abstract = {Objective: The objective of this paper is to review existing literature surrounding the utility of the King-Devick test which is a commonly used sideline assessment tool for sport-related concussions. Methods: A review of the literature was performed using MEDLINE, CINHAL, and SportDiscus databases. The search was performed from the beginning of the record through November 16th, 2015. Results: This search strategy yielded 27 articles from aforementioned databases. Further searching in The Cochrane Library with King-Devick AND Concuss* search terms yielded one additional article, summing a total of 28 articles. After removal of duplicates and implementation of the inclusion/exclusion criteria, 8 articles for extensively reviewed. Conclusion: This narrative review suggests that the King-Devick test is an efficient sideline assessment tool for sport-related concussions. However, we recommend that the King-Devick should be used as a sideline screening tool, not a concussion diagnosis tool at this time. A proper baseline time including multiple tests may be recommended to negate the learning affect and to have a reliable baseline in which to measure from for future reference. A three second difference appears appropriate to identify the possibility of concussion and to remove an athlete from play. At this time, the athlete should be monitored and further evaluated as symptoms are sometimes delayed. We suggest that further research may be useful to better determine the efficacy of the K-D test in detecting concussions across a broader range of athletes and sports. We also suggest further research may investigate the K-D test a potential return-to-play tool for clinicians and medical personnel.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Patricios, Jon; Collins, Robert; Branfield, Andrew; Roberts, Craig; Kohler, Ryan
The sports concussion note: should SCAT become SCOAT? Journal Article
In: British Journal of Sports Medicine, vol. 46, pp. 198–201, 2012.
@article{Patricios2012,
title = {The sports concussion note: should SCAT become SCOAT?},
author = {Patricios, Jon and Collins, Robert and Branfield, Andrew and Roberts, Craig and Kohler, Ryan},
year = {2012},
date = {2012-01-01},
journal = {British Journal of Sports Medicine},
volume = {46},
pages = {198--201},
address = {Sports Concussion South Africa and Section Sports Medicine, Department of Health Sciences, University of Pretoria, Pretoria 1267, South Africa, Sports Concussion South Africa. jpat@mweb.co.za.},
abstract = {Sports concussion research and clinical guidelines have evolved rapidly. The most recent concussion consensus statement and guidelines (Zurich, 2008) provided clinicians with the Sports Concussion Assessment Tool version 2 (SCAT2) as a clinical template for the assessment of acute concussion. For the subsequent serial examinations required for the complete assessment of the concussed athlete, SCAT2 may be inadequate. This paper describes the experience and suggestions of South African sports physicians in evolving a more comprehensive clinical evaluation tool and record of patient care, the Sports Concussion Office Assessment Tool.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Schneiders, A G; Sullivan, S J; Handcock, P; Gray, A; McCrory, P R
Sports concussion assessment: the effect of exercise on dynamic and static balance Journal Article
In: Scandinavian Journal of Medicine & Science in Sports, vol. 22, pp. 85–90, 2012.
@article{Schneiders2012,
title = {Sports concussion assessment: the effect of exercise on dynamic and static balance},
author = {Schneiders, A G and Sullivan, S J and Handcock, P and Gray, A and McCrory, P R},
year = {2012},
date = {2012-01-01},
journal = {Scandinavian Journal of Medicine \& Science in Sports},
volume = {22},
pages = {85--90},
address = {Center for Physiotherapy Research, University of Otago, Dunedin, New Zealand. tony.schneiders@otago.ac.nz},
abstract = {This study determined the effect of exercise on measures of static and dynamic balance used in the assessment of sports-related concussion (SRC). A balanced three-group cross-over randomized design was used with three levels of exercise verified by blood-lactate, heart rate and "perceived-exertion": no exercise/rest (NE), moderate-intensity exercise (ME), and high-intensity exercise (HE). Participants performed two timed balance tasks: tandem gait (TG) and single-leg stance (SLS); pre- and post-exercise and 15 min after exercise. Linear mixed-models with adjusted means and contrasts compared exercise effects. Ninety asymptomatic participants (45[MALE SIGN (present in WGL4)]:45[FEMALE SIGN (present in WGL4)]) were recruited. When times were contrasted with NE; HE resulted in a significant decrease in SLS (P\<0.001) and TG (P\<0.001) performance immediately following exercise. Fifteen minutes of recovery improved SLS (P\<0.001) and TG (P=0.011) from post-exercise performance. ME caused a significant decrease in performance in SLS (P=0.038) but not TG (P=0.428). No statistically significant change occurred following ME in any tasks after 15-min recovery (SLS P=0.064; TG P=0.495). Test-retest reliability was considerably higher for the dynamic task compared with the static task. The reliability of static and dynamic balance tasks, and the change in performance following exercise, have implications for the immediate assessment of SRC, as these measures are utilized in concussion assessment instruments.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Brett, Benjamin L; Smyk, Nathan; Solomon, Gary; Baughman, Brandon C; Schatz, Philip
In: Archives of Clinical Neuropsychology, vol. 31, no. 8, pp. 904–914, 2016, ISBN: 08876177.
Abstract | Links | BibTeX | Tags: assessment, Childhood brain insult, Cognitive Ability, COGNITIVE testing, head injury, HIGH school athletes, Intraclass correlation, Norms/normative studies, Practice effects/reliable change, psychology, STATISTICAL reliability, Test construction, traumatic brain injury
@article{Brett2016,
title = {Long-term Stability and Reliability of Baseline Cognitive Assessments in High School Athletes Using ImPACT at 1-, 2-, and 3-year Test-Retest Intervals},
author = {Brett, Benjamin L and Smyk, Nathan and Solomon, Gary and Baughman, Brandon C and Schatz, Philip},
doi = {10.1093/arclin/acw055},
isbn = {08876177},
year = {2016},
date = {2016-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {31},
number = {8},
pages = {904--914},
abstract = {Objective: The ImPACT (Immediate Post-Concussion Assessment and Cognitive Testing) neurocognitive testing battery is a widely used tool used for the assessment and management of sports-related concussion. Research on the stability of ImPACT in high school athletes at a 1- and 2-year intervals have been inconsistent, requiring further investigation. We documented 1-, 2-, and 3-year test-retest reliability of repeated ImPACT baseline assessments in a sample of high school athletes, using multiple statistical methods for examining stability. Methods: A total of 1,510 high school athletes completed baseline cognitive testing using online ImPACT test battery at three time periods of approximately 1- (N = 250), 2- (N = 1146), and 3-year (N = 114) intervals. No participant sustained a concussion between assessments. Results: Intraclass correlation coefficients (ICCs) ranged in composite scores from 0.36 to 0.90 and showed little change as intervals between assessments increased. Reliable change indices and regression-based measures (RBMs) examining the test-retest stability demonstrated a lack of significant change in composite scores across the various time intervals, with very few cases (0%-6%) falling outside of 95% confidence intervals. Conclusion: The results suggest ImPACT composites scores remain considerably stability across 1-, 2-, and 3-year test-retest intervals in high school athletes, when considering both ICCs and RBM. Annually ascertaining baseline scores continues to be optimal for ensuring accurate and individualized management of injury for concussed athletes. For instances in which more recent baselines are not available (1-2 years), clinicians should seek to utilize more conservative range estimates in determining the presence of clinically meaningful change in cognitive performance.},
keywords = {assessment, Childhood brain insult, Cognitive Ability, COGNITIVE testing, head injury, HIGH school athletes, Intraclass correlation, Norms/normative studies, Practice effects/reliable change, psychology, STATISTICAL reliability, Test construction, traumatic brain injury},
pubstate = {published},
tppubtype = {article}
}
Holtkamp, M D; Grimes, J; Ling, G
Concussion in the Military: an Evidence-Base Review of mTBI in US Military Personnel Focused on Posttraumatic Headache Journal Article
In: Current Pain & Headache Reports, vol. 20, no. 6, 2016.
Abstract | Links | BibTeX | Tags: apolipoprotein E4, assessment, biological marker, botulinum toxin, brain concussion, calcitonin gene related peptide receptor antagonis, comorbidity, Concussion, depression, DIAGNOSTIC imaging, disease course, genetic polymorphism, genetic predisposition, glial fibrillary acidic protein, headache, Headache disorder, human, MANAGEMENT, migraine, Military personnel, mTBI, neuroimaging, Pathophysiology, postconcussion syndrome, posttraumatic headache, posttraumatic stress disorder, Prognosis, Review, serotonin 1 agonist, serotonin 1F agonist, soldier, traumatic brain injury, Treatment, tricyclic antidepressant agent, triptan derivative, unclassified drug, UNITED States
@article{Holtkamp2016,
title = {Concussion in the Military: an Evidence-Base Review of mTBI in US Military Personnel Focused on Posttraumatic Headache},
author = {Holtkamp, M D and Grimes, J and Ling, G},
doi = {10.1007/s11916-016-0572-x},
year = {2016},
date = {2016-01-01},
journal = {Current Pain \& Headache Reports},
volume = {20},
number = {6},
abstract = {Traumatic brain injury (TBI) is defined as an alteration in brain function caused by an external force. Mild TBI or concussion is now well recognized to be a risk of military service as well as participation in athletic sports such as football. Posttraumatic headache (PTH) is the most common symptom after mTBI in US service members. PTH most commonly presents with migraine-like headache features. The following is an overview of the epidemiology, pathophysiology, clinical course, prognosis, complications, and treatment of mTBI and associated comorbidities with a focus on PTH. There is a particular emphasis on emerging evidence-based clinical practice. One important medical consequence of the recognition that mTBI is a highly prevalent among military service members is that the Department of Defense (DoD) is dedicating significant financial and intellectual resources to better understanding and developing treatments for TBI. The identification of the importance of TBI among the US military population has had the added benefit of increasing awareness of this condition among civilian populations, particularly those engaged in both professional and youth sports. The NIH and NSF are also supporting important TBI research. President Obama’s Brain Initiative is also providing additional impetus for these efforts. Unfortunately, the understanding of the acute and chronic effects of mTBI on the brain remains limited. Gratefully, there is hope that through innovative research, there will be advances in elucidating the underlying pathophysiology, which will lead to clinical and prognostic indicators, ultimately resulting in new treatment options for this very complicated set of disorders. © 2016, Springer Science+Business Media New York (outside the USA).},
keywords = {apolipoprotein E4, assessment, biological marker, botulinum toxin, brain concussion, calcitonin gene related peptide receptor antagonis, comorbidity, Concussion, depression, DIAGNOSTIC imaging, disease course, genetic polymorphism, genetic predisposition, glial fibrillary acidic protein, headache, Headache disorder, human, MANAGEMENT, migraine, Military personnel, mTBI, neuroimaging, Pathophysiology, postconcussion syndrome, posttraumatic headache, posttraumatic stress disorder, Prognosis, Review, serotonin 1 agonist, serotonin 1F agonist, soldier, traumatic brain injury, Treatment, tricyclic antidepressant agent, triptan derivative, unclassified drug, UNITED States},
pubstate = {published},
tppubtype = {article}
}
Howitt, Scott; Brommer, Robert; Fowler, Justin; Gerwing, Logan; Payne, Julian; DeGraauw, Christopher
The utility of the King-Devick test as a sideline assessment tool for sport-related concussions: a narrative review Journal Article
In: Journal of the Canadian Chiropractic Association, vol. 60, no. 4, pp. 322–329, 2016, ISBN: 00083194.
Abstract | BibTeX | Tags: assessment, auxiliaire, BRAIN -- Concussion -- Diagnosis, chiropractic, chiropratique, CINAHL (Information retrieval system), COLLEGE athletes, commotion cérébrale, Concussion, CONFIDENCE intervals, DATA analysis -- Software, dépistage, DESCRIPTIVE statistics, EQUIPMENT & supplies, EVALUATION, INFORMATION storage & retrieval systems, Information storage & retrieval systems -- Medical, King-Devick test, MANN Whitney U Test, Medical screening, Medline, neurologic examination, ODDS ratio, PRE-tests & post-tests, PROBABILITY theory, screening, Sideline, Sports, SPORTS injuries, SYSTEMATIC reviews (Medical research), test King-Devick
@article{Howitt2016,
title = {The utility of the King-Devick test as a sideline assessment tool for sport-related concussions: a narrative review},
author = {Howitt, Scott and Brommer, Robert and Fowler, Justin and Gerwing, Logan and Payne, Julian and DeGraauw, Christopher},
isbn = {00083194},
year = {2016},
date = {2016-01-01},
journal = {Journal of the Canadian Chiropractic Association},
volume = {60},
number = {4},
pages = {322--329},
publisher = {Canadian Chiropractic Association},
abstract = {Objective: The objective of this paper is to review existing literature surrounding the utility of the King-Devick test which is a commonly used sideline assessment tool for sport-related concussions. Methods: A review of the literature was performed using MEDLINE, CINHAL, and SportDiscus databases. The search was performed from the beginning of the record through November 16th, 2015. Results: This search strategy yielded 27 articles from aforementioned databases. Further searching in The Cochrane Library with King-Devick AND Concuss* search terms yielded one additional article, summing a total of 28 articles. After removal of duplicates and implementation of the inclusion/exclusion criteria, 8 articles for extensively reviewed. Conclusion: This narrative review suggests that the King-Devick test is an efficient sideline assessment tool for sport-related concussions. However, we recommend that the King-Devick should be used as a sideline screening tool, not a concussion diagnosis tool at this time. A proper baseline time including multiple tests may be recommended to negate the learning affect and to have a reliable baseline in which to measure from for future reference. A three second difference appears appropriate to identify the possibility of concussion and to remove an athlete from play. At this time, the athlete should be monitored and further evaluated as symptoms are sometimes delayed. We suggest that further research may be useful to better determine the efficacy of the K-D test in detecting concussions across a broader range of athletes and sports. We also suggest further research may investigate the K-D test a potential return-to-play tool for clinicians and medical personnel.},
keywords = {assessment, auxiliaire, BRAIN -- Concussion -- Diagnosis, chiropractic, chiropratique, CINAHL (Information retrieval system), COLLEGE athletes, commotion c\'{e}r\'{e}brale, Concussion, CONFIDENCE intervals, DATA analysis -- Software, d\'{e}pistage, DESCRIPTIVE statistics, EQUIPMENT \& supplies, EVALUATION, INFORMATION storage \& retrieval systems, Information storage \& retrieval systems -- Medical, King-Devick test, MANN Whitney U Test, Medical screening, Medline, neurologic examination, ODDS ratio, PRE-tests \& post-tests, PROBABILITY theory, screening, Sideline, Sports, SPORTS injuries, SYSTEMATIC reviews (Medical research), test King-Devick},
pubstate = {published},
tppubtype = {article}
}
Patricios, Jon; Collins, Robert; Branfield, Andrew; Roberts, Craig; Kohler, Ryan
The sports concussion note: should SCAT become SCOAT? Journal Article
In: British Journal of Sports Medicine, vol. 46, pp. 198–201, 2012.
Abstract | BibTeX | Tags: assessment
@article{Patricios2012,
title = {The sports concussion note: should SCAT become SCOAT?},
author = {Patricios, Jon and Collins, Robert and Branfield, Andrew and Roberts, Craig and Kohler, Ryan},
year = {2012},
date = {2012-01-01},
journal = {British Journal of Sports Medicine},
volume = {46},
pages = {198--201},
address = {Sports Concussion South Africa and Section Sports Medicine, Department of Health Sciences, University of Pretoria, Pretoria 1267, South Africa, Sports Concussion South Africa. jpat@mweb.co.za.},
abstract = {Sports concussion research and clinical guidelines have evolved rapidly. The most recent concussion consensus statement and guidelines (Zurich, 2008) provided clinicians with the Sports Concussion Assessment Tool version 2 (SCAT2) as a clinical template for the assessment of acute concussion. For the subsequent serial examinations required for the complete assessment of the concussed athlete, SCAT2 may be inadequate. This paper describes the experience and suggestions of South African sports physicians in evolving a more comprehensive clinical evaluation tool and record of patient care, the Sports Concussion Office Assessment Tool.},
keywords = {assessment},
pubstate = {published},
tppubtype = {article}
}
Schneiders, A G; Sullivan, S J; Handcock, P; Gray, A; McCrory, P R
Sports concussion assessment: the effect of exercise on dynamic and static balance Journal Article
In: Scandinavian Journal of Medicine & Science in Sports, vol. 22, pp. 85–90, 2012.
Abstract | BibTeX | Tags: assessment
@article{Schneiders2012,
title = {Sports concussion assessment: the effect of exercise on dynamic and static balance},
author = {Schneiders, A G and Sullivan, S J and Handcock, P and Gray, A and McCrory, P R},
year = {2012},
date = {2012-01-01},
journal = {Scandinavian Journal of Medicine \& Science in Sports},
volume = {22},
pages = {85--90},
address = {Center for Physiotherapy Research, University of Otago, Dunedin, New Zealand. tony.schneiders@otago.ac.nz},
abstract = {This study determined the effect of exercise on measures of static and dynamic balance used in the assessment of sports-related concussion (SRC). A balanced three-group cross-over randomized design was used with three levels of exercise verified by blood-lactate, heart rate and "perceived-exertion": no exercise/rest (NE), moderate-intensity exercise (ME), and high-intensity exercise (HE). Participants performed two timed balance tasks: tandem gait (TG) and single-leg stance (SLS); pre- and post-exercise and 15 min after exercise. Linear mixed-models with adjusted means and contrasts compared exercise effects. Ninety asymptomatic participants (45[MALE SIGN (present in WGL4)]:45[FEMALE SIGN (present in WGL4)]) were recruited. When times were contrasted with NE; HE resulted in a significant decrease in SLS (P\<0.001) and TG (P\<0.001) performance immediately following exercise. Fifteen minutes of recovery improved SLS (P\<0.001) and TG (P=0.011) from post-exercise performance. ME caused a significant decrease in performance in SLS (P=0.038) but not TG (P=0.428). No statistically significant change occurred following ME in any tasks after 15-min recovery (SLS P=0.064; TG P=0.495). Test-retest reliability was considerably higher for the dynamic task compared with the static task. The reliability of static and dynamic balance tasks, and the change in performance following exercise, have implications for the immediate assessment of SRC, as these measures are utilized in concussion assessment instruments.},
keywords = {assessment},
pubstate = {published},
tppubtype = {article}
}