The American Football Helmet and Concussions John Krauss
Football accounts for the most sports-related concussions in the United States. The National Operating Committee on Standards for Athletic Equipment (NOCSAE) Overview Ruling Change in 1975 prohibiting players from leading with their heads.
F = m Striking a Striking +FN F = m Struck a Struck Forces At Work SI = ∫ a(t)2.5dt * The resulting SI score has to be below 1200 in order for a helmet to pass the safety test.
Concussions * One of the dangers associated with concussions is that after receiving one, a player is more susceptible to further trauma for up to 14 days. * Tendency of concussions to show no pathological changes on standard MRI and CT scans. * After the initial trauma, there is a marked decrease in blood to the affected area of the brain. * Multiple traumatic brain injuries can lead to severe long term health effects and can become fatal * Two areas of the brain that show susceptibility to trauma are the frontal and temporal lobes.
Sources CONCUSSION IN PROFESSIONAL FOOTBALL: RECONSTRUCTION OF GAME IMPACTS AND INJURIES:Elliot J. Pellman, M.D. David C. Viano, Dr. med.,Ph.D. Andrew M. Tucker, M.D. Ira R. Casson, M.D. Joe F. Waeckerle, M.D. Bloomfield Hills, MI ANALYSIS AND EVOLUTION OF HEAD INJURY IN FOOTBALL Michael L. Levy, M.D., Burak M Ozgur, M.D, Cherisse Berry, B.S, Henry E. Aryan, M.D, Michael L.J. Apuzzo, M.D, February 23, Neurosurgery 55: , 2004 Birth and Evolution of the Football helmet: Michael L. Levy, M.D., Burak M Ozgur, M.D, Cherisse Berry, B.S, Henry E. Aryan, M.D, Michael L.J. Apuzzo, M.D, February 23, VOLUME 55 | NUMBER 3 | SEPTEMBER online.com Concussion In Professional Football: Biomechanics of Struck Player, David Viano, M.D, Ph.D, Ira Casson, M.D., Elliot Pellman, M.D. VOLUME 61 | NUMBER 2 | AUGUST online.com