Redefining Traumatic Brain Injury – Prevention, Protection, and Repair. Eric A. Nauman*, Ph.D., Larry Leverenz, Ph.D., Tom Talavage, Ph.D. *Director, HIRRT Laboratory
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Eric A. Nauman*, Ph.D., Larry Leverenz, Ph.D., Tom Talavage, Ph.D.
*Director, HIRRT Laboratory
Evan Breedlove, Byron Deorosan, Anne Zakrajsek, Meghan Robinson, Victoria Poole, Umit Yoruk, Katie Morigaki, Kent Butz, Paul, Rosenberger, Matt Rasmussen, David Schiffmiller
School of Mechanical Engineering, Weldon School of Biomedical Engineering, Department of Health and Kinesiology, Department of Basic Medical Sciences, School of Electrical and Computer Engineering
New England Journal of Medicine. Vol.352:2043-2047
“Why do some players, who have similar magnitude and number of blows to the head, sustain concussions and others do not?”
Adapted from P.V. Bayly, et al.
J Neurotrauma. 2005 Aug; 22(8):845-56.
P.V. Bayly, et al. J Neurotrauma. 2005 Aug; 22(8):845-56.
Typical blows of 50-100G result in delivery of 100-200 lbs. of force to the helmet/head/neck.
This goes up if player is “ready” for the hit!
Helmet-first contact for LeGrand, Stingley and Everett resulted in more than 5,000 lbs. of force on the neck!
Image from Chicago Tribune, 6 October 2010
Breedlove et al. 2012
Data combined from 2009 & 2010 seasons
Breedlove et al. J Biomechanics (in press)
CONCUSSED PLAYERS but damage is focused in working verbal memory and integrative functions
NON-CONCUSSED PLAYERS but damage is focused in working verbal memory and integrative functions
Red= Likely evidence of impairment Blue = Likely compensatory mechanisms
Prof. Eric Nauman (PU-ME) Prof. Tom Talavage (PU-ECE/BME)Prof. Wayne Chen (PU-AAE) Prof. Larry Leverenz (PU-HK)
Dr. Julian Bailes (U Chicago) Prof. Stephen Roth (UMD)
Prof. Charles Bouman (PU-ECE) Jonathan Murray (GEHC)
Dr. Henry Feuer (IUSM) Prof. Doug Adams (PU-ME)
Dr. Randall Benson (Wayne State) Prof. Jeff Gilger (UC-Merced)
Greg Tamer, PhD (PU-BME) Mr. Denny Miller (PU-IAD)
KausarAbbas (ECE) Evan Breedlove (ME)
Kent Butz (ME) Il-Yong Chun (ECE)
Katherine Morigaki (HK) Victoria Poole (BME)
Meghan Robinson (BME) Anne (Dye) Zakrajsek (ME)
Allan Diaz (ECE) Jeff King (ECE)
Lisa Li (ECE) Kyle O’Keefe (ME)
Matthew Rasmussen (ME) Paul Rosenberger (ECE)