Donders, J; Strong, C A
Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury Journal Article
In: Archives of Clinical Neuropsychology, vol. 31, no. 1, pp. 29–36, 2016.
Abstract | BibTeX | Tags: *Brain Injuries/px [Psychology], *Cognition Disorders/px [Psychology], *Executive Function, Adolescent, adult, Brain Injuries/co [Complications], Brain Injuries/di [Diagnosis], Cognition Disorders/co [Complications], Cognition Disorders/di [Diagnosis], FACTOR analysis, Female, Humans, Male, Models, Neuropsychological Tests, Psychological, self report, Statistical, Young Adult
@article{Donders2016,
title = {Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury},
author = {Donders, J and Strong, C A},
year = {2016},
date = {2016-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {31},
number = {1},
pages = {29--36},
abstract = {One hundred persons with mild traumatic brain injury (TBI) and their informants completed the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) within 1-12 months after injury. Exploratory maximum-likelihood factor analysis with oblique rotation revealed that although a traditional 2-factor model fit the informant-report data well, a 3-factor solution fit the self-report data relatively best. These factors were labeled Metacognition, Behavioral Regulation, and Emotional Regulation. The presence of a premorbid history of outpatient psychiatric treatment was strongly predictive of higher scores (reflecting more perceived problems) on each of these 3 factors. Lower educational attainment was associated with higher scores on the Behavioral Regulation factor, whereas absence of intracranial findings on neuroimaging was associated with higher scores on the Emotional Regulation factor. It is concluded that, after mild TBI, self-report data on the BRIEF-A can be interpreted along a 3-factorial model and that high elevations on this instrument are strongly affected by premorbid complications. Copyright © The Author 2015. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.},
keywords = {*Brain Injuries/px [Psychology], *Cognition Disorders/px [Psychology], *Executive Function, Adolescent, adult, Brain Injuries/co [Complications], Brain Injuries/di [Diagnosis], Cognition Disorders/co [Complications], Cognition Disorders/di [Diagnosis], FACTOR analysis, Female, Humans, Male, Models, Neuropsychological Tests, Psychological, self report, Statistical, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Patton, D A; McIntosh, A S; Kleiven, S
In: Journal of Applied Biomechanics, vol. 31, no. 4, pp. 264–268, 2015.
Abstract | Links | BibTeX | Tags: Article, Biomechanics, brain, Brain Injury, brain region, clinical article, Concussion, corpus callosum, Damage detection, evaluation study, finite element analysis, Finite element head models, Finite element method, Finite element simulations, football, gray matter, Head Injuries, head injury, human, Intra-cranial pressure, intracranial pressure, investigative procedures, Maximum principal strain, mesencephalon, Modeling, Models, Numerical reconstruction, Qualitative observations, Sport, sport injury, Sports, Strain and strain rates, Strain rate, Stress, thalamus, Tissue, tissue level
@article{Patton2015,
title = {The biomechanical determinants of concussion: Finite element simulations to investigate tissue-level predictors of injury during sporting impacts to the unprotected head},
author = {Patton, D A and McIntosh, A S and Kleiven, S},
doi = {10.1123/jab.2014-0223},
year = {2015},
date = {2015-01-01},
journal = {Journal of Applied Biomechanics},
volume = {31},
number = {4},
pages = {264--268},
abstract = {Biomechanical studies of concussions have progressed from qualitative observations of head impacts to physical and numerical reconstructions, direct impact measurements, and finite element analyses. Supplementary to a previous study, which investigated maximum principal strain, the current study used a detailed finite element head model to simulate unhelmeted concussion and no-injury head impacts and evaluate the effectiveness of various tissue-level brain injury predictors: strain rate, product of strain and strain rate, cumulative strain damage measure, von Mises stress, and intracranial pressure. Von Mises stress was found to be the most effective predictor of concussion. It was also found that the thalamus and corpus callosum were brain regions with strong associations with concussion. Tentative tolerance limits for tissue-level predictors were proposed in an attempt to broaden the understanding of unhelmeted concussions. For the thalamus, tolerance limits were proposed for a 50% likelihood of concussion: 2.24 kPa, 24.0 s-1, and 2.49 s-1 for von Mises stress, strain rate, and the product of strain and strain rate, respectively. For the corpus callosum, tolerance limits were proposed for a 50% likelihood of concussion: 3.51 kPa, 25.1 s-1, and 2.76 s-1 for von Mises stress, strain rate, and the product of strain and strain rate, respectively. © 2015 Human Kinetics, Inc.},
keywords = {Article, Biomechanics, brain, Brain Injury, brain region, clinical article, Concussion, corpus callosum, Damage detection, evaluation study, finite element analysis, Finite element head models, Finite element method, Finite element simulations, football, gray matter, Head Injuries, head injury, human, Intra-cranial pressure, intracranial pressure, investigative procedures, Maximum principal strain, mesencephalon, Modeling, Models, Numerical reconstruction, Qualitative observations, Sport, sport injury, Sports, Strain and strain rates, Strain rate, Stress, thalamus, Tissue, tissue level},
pubstate = {published},
tppubtype = {article}
}
McIntosh, A S; Lai, A; Schilter, E
Bicycle helmets: head impact dynamics in helmeted and unhelmeted oblique impact tests Journal Article
In: Traffic Injury Prevention, vol. 14, no. 5, pp. 501–508, 2013.
Abstract | BibTeX | Tags: *Accidents, *Bicycling/in [Injuries], *Craniocerebral Trauma/et [Etiology], *Head Protective Devices/ut [Utilization], Acceleration, Biological, Biomechanical Phenomena, Computer simulation, Humans, Male, Manikins, Models, Traffic/sn [Statistics & Numerical Dat
@article{McIntosh2013,
title = {Bicycle helmets: head impact dynamics in helmeted and unhelmeted oblique impact tests},
author = {McIntosh, A S and Lai, A and Schilter, E},
year = {2013},
date = {2013-01-01},
journal = {Traffic Injury Prevention},
volume = {14},
number = {5},
pages = {501--508},
abstract = {OBJECTIVE: To assess the factors, including helmet use, that contribute to head linear and angular acceleration in bicycle crash simulation tests. METHOD: A series of laboratory tests was undertaken using an oblique impact rig. The impact rig included a drop assembly with a Hybrid III head and neck. The head struck a horizontally moving striker plate. Head linear and angular acceleration and striker plate force were measured. The Head Injury Criterion was derived. The following test parameters were varied: drop height to a maximum of 1.5 m, horizontal speed to a maximum of 25 km/h, helmet/no helmet, impact orientation/location, and restraint adjustment. Additional radial impacts were conducted on the same helmet models for comparison purposes. Descriptive statistics were derived and multiple regression was applied to examine the role of each parameter. RESULTS: Helmet use was the most significant factor in reducing the magnitude of all outcome variables. Linear acceleration and the Head Injury Criterion were influenced by the drop height, whereas angular acceleration tended to be influenced by the horizontal speed and impact orientation/location. The restraint adjustment influenced the outcome variables, with lower coefficients of variation observed with the tight restraint. CONCLUSIONS: The study reinforces the benefits of wearing a bicycle helmet in a crash. The study also demonstrates that helmets do not increase angular head acceleration. The study assists in establishing the need for an agreed-upon international oblique helmet test as well as the boundary conditions for oblique helmet testing.},
keywords = {*Accidents, *Bicycling/in [Injuries], *Craniocerebral Trauma/et [Etiology], *Head Protective Devices/ut [Utilization], Acceleration, Biological, Biomechanical Phenomena, Computer simulation, Humans, Male, Manikins, Models, Traffic/sn [Statistics \& Numerical Dat},
pubstate = {published},
tppubtype = {article}
}
Fife, Gabriel P; O'Sullivan, David M; Pieter, Willy; Cook, David P; Kaminski, Thomas W
Effects of Olympic-style taekwondo kicks on an instrumented head-form and resultant injury measures Journal Article
In: British Journal of Sports Medicine, vol. 47, no. 18, pp. 1161–1165, 2013, ISBN: 0306-3674.
Abstract | Links | BibTeX | Tags: Anatomic, Brain Concussion -- Etiology, Brain Concussion -- Physiopathology, Equipment Design, Foot -- Physiology, human, Kinematics -- Physiology, Male, Martial Arts, Models, Motion, Movement -- Physiology, Sports Medicine -- Equipment and Supplies, Young Adult
@article{Fife2013b,
title = {Effects of Olympic-style taekwondo kicks on an instrumented head-form and resultant injury measures},
author = {Fife, Gabriel P and O'Sullivan, David M and Pieter, Willy and Cook, David P and Kaminski, Thomas W},
doi = {10.1136/bjsports-2012-090979},
isbn = {0306-3674},
year = {2013},
date = {2013-01-01},
journal = {British Journal of Sports Medicine},
volume = {47},
number = {18},
pages = {1161--1165},
publisher = {BMJ Publishing Group},
abstract = {OBJECTIVE: The objective of this study was to assess the effect of taekwondo kicks and peak foot velocity (FVEL) on resultant head linear acceleration (RLA), head injury criterion (HIC15) and head velocity (HVEL). METHODS: Each subject (n=12) randomly performed five repetitions of the turning kick (TK), clench axe kick (CA), front leg axe kick, jump back kick (JB) and jump spinning hook kick (JH) at the average standing head height for competitors in their weight division. A Hybrid II Crash Test Dummy head was fitted with a protective taekwondo helmet and instrumented with a triaxial accelerometer and fixed to a height-adjustable frame. Resultant head linear acceleration, HVEL, FVEL data were captured and processed using Qualysis Track Manager. RESULTS: The TK (130.11±51.67 g) produced a higher RLA than the CA (54.95±20.08 g, p\<0.001},
keywords = {Anatomic, Brain Concussion -- Etiology, Brain Concussion -- Physiopathology, Equipment Design, Foot -- Physiology, human, Kinematics -- Physiology, Male, Martial Arts, Models, Motion, Movement -- Physiology, Sports Medicine -- Equipment and Supplies, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Donders, J; Strong, C A
Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury Journal Article
In: Archives of Clinical Neuropsychology, vol. 31, no. 1, pp. 29–36, 2016.
@article{Donders2016,
title = {Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury},
author = {Donders, J and Strong, C A},
year = {2016},
date = {2016-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {31},
number = {1},
pages = {29--36},
abstract = {One hundred persons with mild traumatic brain injury (TBI) and their informants completed the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) within 1-12 months after injury. Exploratory maximum-likelihood factor analysis with oblique rotation revealed that although a traditional 2-factor model fit the informant-report data well, a 3-factor solution fit the self-report data relatively best. These factors were labeled Metacognition, Behavioral Regulation, and Emotional Regulation. The presence of a premorbid history of outpatient psychiatric treatment was strongly predictive of higher scores (reflecting more perceived problems) on each of these 3 factors. Lower educational attainment was associated with higher scores on the Behavioral Regulation factor, whereas absence of intracranial findings on neuroimaging was associated with higher scores on the Emotional Regulation factor. It is concluded that, after mild TBI, self-report data on the BRIEF-A can be interpreted along a 3-factorial model and that high elevations on this instrument are strongly affected by premorbid complications. Copyright © The Author 2015. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Patton, D A; McIntosh, A S; Kleiven, S
In: Journal of Applied Biomechanics, vol. 31, no. 4, pp. 264–268, 2015.
@article{Patton2015,
title = {The biomechanical determinants of concussion: Finite element simulations to investigate tissue-level predictors of injury during sporting impacts to the unprotected head},
author = {Patton, D A and McIntosh, A S and Kleiven, S},
doi = {10.1123/jab.2014-0223},
year = {2015},
date = {2015-01-01},
journal = {Journal of Applied Biomechanics},
volume = {31},
number = {4},
pages = {264--268},
abstract = {Biomechanical studies of concussions have progressed from qualitative observations of head impacts to physical and numerical reconstructions, direct impact measurements, and finite element analyses. Supplementary to a previous study, which investigated maximum principal strain, the current study used a detailed finite element head model to simulate unhelmeted concussion and no-injury head impacts and evaluate the effectiveness of various tissue-level brain injury predictors: strain rate, product of strain and strain rate, cumulative strain damage measure, von Mises stress, and intracranial pressure. Von Mises stress was found to be the most effective predictor of concussion. It was also found that the thalamus and corpus callosum were brain regions with strong associations with concussion. Tentative tolerance limits for tissue-level predictors were proposed in an attempt to broaden the understanding of unhelmeted concussions. For the thalamus, tolerance limits were proposed for a 50% likelihood of concussion: 2.24 kPa, 24.0 s-1, and 2.49 s-1 for von Mises stress, strain rate, and the product of strain and strain rate, respectively. For the corpus callosum, tolerance limits were proposed for a 50% likelihood of concussion: 3.51 kPa, 25.1 s-1, and 2.76 s-1 for von Mises stress, strain rate, and the product of strain and strain rate, respectively. © 2015 Human Kinetics, Inc.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
McIntosh, A S; Lai, A; Schilter, E
Bicycle helmets: head impact dynamics in helmeted and unhelmeted oblique impact tests Journal Article
In: Traffic Injury Prevention, vol. 14, no. 5, pp. 501–508, 2013.
@article{McIntosh2013,
title = {Bicycle helmets: head impact dynamics in helmeted and unhelmeted oblique impact tests},
author = {McIntosh, A S and Lai, A and Schilter, E},
year = {2013},
date = {2013-01-01},
journal = {Traffic Injury Prevention},
volume = {14},
number = {5},
pages = {501--508},
abstract = {OBJECTIVE: To assess the factors, including helmet use, that contribute to head linear and angular acceleration in bicycle crash simulation tests. METHOD: A series of laboratory tests was undertaken using an oblique impact rig. The impact rig included a drop assembly with a Hybrid III head and neck. The head struck a horizontally moving striker plate. Head linear and angular acceleration and striker plate force were measured. The Head Injury Criterion was derived. The following test parameters were varied: drop height to a maximum of 1.5 m, horizontal speed to a maximum of 25 km/h, helmet/no helmet, impact orientation/location, and restraint adjustment. Additional radial impacts were conducted on the same helmet models for comparison purposes. Descriptive statistics were derived and multiple regression was applied to examine the role of each parameter. RESULTS: Helmet use was the most significant factor in reducing the magnitude of all outcome variables. Linear acceleration and the Head Injury Criterion were influenced by the drop height, whereas angular acceleration tended to be influenced by the horizontal speed and impact orientation/location. The restraint adjustment influenced the outcome variables, with lower coefficients of variation observed with the tight restraint. CONCLUSIONS: The study reinforces the benefits of wearing a bicycle helmet in a crash. The study also demonstrates that helmets do not increase angular head acceleration. The study assists in establishing the need for an agreed-upon international oblique helmet test as well as the boundary conditions for oblique helmet testing.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fife, Gabriel P; O'Sullivan, David M; Pieter, Willy; Cook, David P; Kaminski, Thomas W
Effects of Olympic-style taekwondo kicks on an instrumented head-form and resultant injury measures Journal Article
In: British Journal of Sports Medicine, vol. 47, no. 18, pp. 1161–1165, 2013, ISBN: 0306-3674.
@article{Fife2013b,
title = {Effects of Olympic-style taekwondo kicks on an instrumented head-form and resultant injury measures},
author = {Fife, Gabriel P and O'Sullivan, David M and Pieter, Willy and Cook, David P and Kaminski, Thomas W},
doi = {10.1136/bjsports-2012-090979},
isbn = {0306-3674},
year = {2013},
date = {2013-01-01},
journal = {British Journal of Sports Medicine},
volume = {47},
number = {18},
pages = {1161--1165},
publisher = {BMJ Publishing Group},
abstract = {OBJECTIVE: The objective of this study was to assess the effect of taekwondo kicks and peak foot velocity (FVEL) on resultant head linear acceleration (RLA), head injury criterion (HIC15) and head velocity (HVEL). METHODS: Each subject (n=12) randomly performed five repetitions of the turning kick (TK), clench axe kick (CA), front leg axe kick, jump back kick (JB) and jump spinning hook kick (JH) at the average standing head height for competitors in their weight division. A Hybrid II Crash Test Dummy head was fitted with a protective taekwondo helmet and instrumented with a triaxial accelerometer and fixed to a height-adjustable frame. Resultant head linear acceleration, HVEL, FVEL data were captured and processed using Qualysis Track Manager. RESULTS: The TK (130.11±51.67 g) produced a higher RLA than the CA (54.95±20.08 g, p\<0.001},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Donders, J; Strong, C A
Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury Journal Article
In: Archives of Clinical Neuropsychology, vol. 31, no. 1, pp. 29–36, 2016.
Abstract | BibTeX | Tags: *Brain Injuries/px [Psychology], *Cognition Disorders/px [Psychology], *Executive Function, Adolescent, adult, Brain Injuries/co [Complications], Brain Injuries/di [Diagnosis], Cognition Disorders/co [Complications], Cognition Disorders/di [Diagnosis], FACTOR analysis, Female, Humans, Male, Models, Neuropsychological Tests, Psychological, self report, Statistical, Young Adult
@article{Donders2016,
title = {Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury},
author = {Donders, J and Strong, C A},
year = {2016},
date = {2016-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {31},
number = {1},
pages = {29--36},
abstract = {One hundred persons with mild traumatic brain injury (TBI) and their informants completed the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) within 1-12 months after injury. Exploratory maximum-likelihood factor analysis with oblique rotation revealed that although a traditional 2-factor model fit the informant-report data well, a 3-factor solution fit the self-report data relatively best. These factors were labeled Metacognition, Behavioral Regulation, and Emotional Regulation. The presence of a premorbid history of outpatient psychiatric treatment was strongly predictive of higher scores (reflecting more perceived problems) on each of these 3 factors. Lower educational attainment was associated with higher scores on the Behavioral Regulation factor, whereas absence of intracranial findings on neuroimaging was associated with higher scores on the Emotional Regulation factor. It is concluded that, after mild TBI, self-report data on the BRIEF-A can be interpreted along a 3-factorial model and that high elevations on this instrument are strongly affected by premorbid complications. Copyright © The Author 2015. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.},
keywords = {*Brain Injuries/px [Psychology], *Cognition Disorders/px [Psychology], *Executive Function, Adolescent, adult, Brain Injuries/co [Complications], Brain Injuries/di [Diagnosis], Cognition Disorders/co [Complications], Cognition Disorders/di [Diagnosis], FACTOR analysis, Female, Humans, Male, Models, Neuropsychological Tests, Psychological, self report, Statistical, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Patton, D A; McIntosh, A S; Kleiven, S
In: Journal of Applied Biomechanics, vol. 31, no. 4, pp. 264–268, 2015.
Abstract | Links | BibTeX | Tags: Article, Biomechanics, brain, Brain Injury, brain region, clinical article, Concussion, corpus callosum, Damage detection, evaluation study, finite element analysis, Finite element head models, Finite element method, Finite element simulations, football, gray matter, Head Injuries, head injury, human, Intra-cranial pressure, intracranial pressure, investigative procedures, Maximum principal strain, mesencephalon, Modeling, Models, Numerical reconstruction, Qualitative observations, Sport, sport injury, Sports, Strain and strain rates, Strain rate, Stress, thalamus, Tissue, tissue level
@article{Patton2015,
title = {The biomechanical determinants of concussion: Finite element simulations to investigate tissue-level predictors of injury during sporting impacts to the unprotected head},
author = {Patton, D A and McIntosh, A S and Kleiven, S},
doi = {10.1123/jab.2014-0223},
year = {2015},
date = {2015-01-01},
journal = {Journal of Applied Biomechanics},
volume = {31},
number = {4},
pages = {264--268},
abstract = {Biomechanical studies of concussions have progressed from qualitative observations of head impacts to physical and numerical reconstructions, direct impact measurements, and finite element analyses. Supplementary to a previous study, which investigated maximum principal strain, the current study used a detailed finite element head model to simulate unhelmeted concussion and no-injury head impacts and evaluate the effectiveness of various tissue-level brain injury predictors: strain rate, product of strain and strain rate, cumulative strain damage measure, von Mises stress, and intracranial pressure. Von Mises stress was found to be the most effective predictor of concussion. It was also found that the thalamus and corpus callosum were brain regions with strong associations with concussion. Tentative tolerance limits for tissue-level predictors were proposed in an attempt to broaden the understanding of unhelmeted concussions. For the thalamus, tolerance limits were proposed for a 50% likelihood of concussion: 2.24 kPa, 24.0 s-1, and 2.49 s-1 for von Mises stress, strain rate, and the product of strain and strain rate, respectively. For the corpus callosum, tolerance limits were proposed for a 50% likelihood of concussion: 3.51 kPa, 25.1 s-1, and 2.76 s-1 for von Mises stress, strain rate, and the product of strain and strain rate, respectively. © 2015 Human Kinetics, Inc.},
keywords = {Article, Biomechanics, brain, Brain Injury, brain region, clinical article, Concussion, corpus callosum, Damage detection, evaluation study, finite element analysis, Finite element head models, Finite element method, Finite element simulations, football, gray matter, Head Injuries, head injury, human, Intra-cranial pressure, intracranial pressure, investigative procedures, Maximum principal strain, mesencephalon, Modeling, Models, Numerical reconstruction, Qualitative observations, Sport, sport injury, Sports, Strain and strain rates, Strain rate, Stress, thalamus, Tissue, tissue level},
pubstate = {published},
tppubtype = {article}
}
McIntosh, A S; Lai, A; Schilter, E
Bicycle helmets: head impact dynamics in helmeted and unhelmeted oblique impact tests Journal Article
In: Traffic Injury Prevention, vol. 14, no. 5, pp. 501–508, 2013.
Abstract | BibTeX | Tags: *Accidents, *Bicycling/in [Injuries], *Craniocerebral Trauma/et [Etiology], *Head Protective Devices/ut [Utilization], Acceleration, Biological, Biomechanical Phenomena, Computer simulation, Humans, Male, Manikins, Models, Traffic/sn [Statistics & Numerical Dat
@article{McIntosh2013,
title = {Bicycle helmets: head impact dynamics in helmeted and unhelmeted oblique impact tests},
author = {McIntosh, A S and Lai, A and Schilter, E},
year = {2013},
date = {2013-01-01},
journal = {Traffic Injury Prevention},
volume = {14},
number = {5},
pages = {501--508},
abstract = {OBJECTIVE: To assess the factors, including helmet use, that contribute to head linear and angular acceleration in bicycle crash simulation tests. METHOD: A series of laboratory tests was undertaken using an oblique impact rig. The impact rig included a drop assembly with a Hybrid III head and neck. The head struck a horizontally moving striker plate. Head linear and angular acceleration and striker plate force were measured. The Head Injury Criterion was derived. The following test parameters were varied: drop height to a maximum of 1.5 m, horizontal speed to a maximum of 25 km/h, helmet/no helmet, impact orientation/location, and restraint adjustment. Additional radial impacts were conducted on the same helmet models for comparison purposes. Descriptive statistics were derived and multiple regression was applied to examine the role of each parameter. RESULTS: Helmet use was the most significant factor in reducing the magnitude of all outcome variables. Linear acceleration and the Head Injury Criterion were influenced by the drop height, whereas angular acceleration tended to be influenced by the horizontal speed and impact orientation/location. The restraint adjustment influenced the outcome variables, with lower coefficients of variation observed with the tight restraint. CONCLUSIONS: The study reinforces the benefits of wearing a bicycle helmet in a crash. The study also demonstrates that helmets do not increase angular head acceleration. The study assists in establishing the need for an agreed-upon international oblique helmet test as well as the boundary conditions for oblique helmet testing.},
keywords = {*Accidents, *Bicycling/in [Injuries], *Craniocerebral Trauma/et [Etiology], *Head Protective Devices/ut [Utilization], Acceleration, Biological, Biomechanical Phenomena, Computer simulation, Humans, Male, Manikins, Models, Traffic/sn [Statistics \& Numerical Dat},
pubstate = {published},
tppubtype = {article}
}
Fife, Gabriel P; O'Sullivan, David M; Pieter, Willy; Cook, David P; Kaminski, Thomas W
Effects of Olympic-style taekwondo kicks on an instrumented head-form and resultant injury measures Journal Article
In: British Journal of Sports Medicine, vol. 47, no. 18, pp. 1161–1165, 2013, ISBN: 0306-3674.
Abstract | Links | BibTeX | Tags: Anatomic, Brain Concussion -- Etiology, Brain Concussion -- Physiopathology, Equipment Design, Foot -- Physiology, human, Kinematics -- Physiology, Male, Martial Arts, Models, Motion, Movement -- Physiology, Sports Medicine -- Equipment and Supplies, Young Adult
@article{Fife2013b,
title = {Effects of Olympic-style taekwondo kicks on an instrumented head-form and resultant injury measures},
author = {Fife, Gabriel P and O'Sullivan, David M and Pieter, Willy and Cook, David P and Kaminski, Thomas W},
doi = {10.1136/bjsports-2012-090979},
isbn = {0306-3674},
year = {2013},
date = {2013-01-01},
journal = {British Journal of Sports Medicine},
volume = {47},
number = {18},
pages = {1161--1165},
publisher = {BMJ Publishing Group},
abstract = {OBJECTIVE: The objective of this study was to assess the effect of taekwondo kicks and peak foot velocity (FVEL) on resultant head linear acceleration (RLA), head injury criterion (HIC15) and head velocity (HVEL). METHODS: Each subject (n=12) randomly performed five repetitions of the turning kick (TK), clench axe kick (CA), front leg axe kick, jump back kick (JB) and jump spinning hook kick (JH) at the average standing head height for competitors in their weight division. A Hybrid II Crash Test Dummy head was fitted with a protective taekwondo helmet and instrumented with a triaxial accelerometer and fixed to a height-adjustable frame. Resultant head linear acceleration, HVEL, FVEL data were captured and processed using Qualysis Track Manager. RESULTS: The TK (130.11±51.67 g) produced a higher RLA than the CA (54.95±20.08 g, p\<0.001},
keywords = {Anatomic, Brain Concussion -- Etiology, Brain Concussion -- Physiopathology, Equipment Design, Foot -- Physiology, human, Kinematics -- Physiology, Male, Martial Arts, Models, Motion, Movement -- Physiology, Sports Medicine -- Equipment and Supplies, Young Adult},
pubstate = {published},
tppubtype = {article}
}