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}
}
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}
}
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}
}
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}
}
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}
}
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}
}