re: Harris vs. Jennings

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Spring practice guidelines:

Of the 15 allowable sessions that may occur during the spring practice season, eight (8) practices may involve live contact; three (3) of these live contact practices may include greater than 50 percent live contact (scrimmages). Live contact practices are limited to two (2) in a given week and may not occur on consecutive days. 

References:NCAA Football: 2013 and 2014 Rules and Interpretations.Cantu RC, Mueller FO. Brain injury-related fatalities in American football, 1945-1999. Neurosurgery 2003; 52:846-852.McAllister TW et al.  Effect of head impacts on diffusivity measures in a cohort of collegiate contact sport athletes.  Neurology 2014; 82:1-7.Bailes JE et al.  Role of subconcussion in repetitive mild traumatic brain injury.  J Neurosurg McAllister TW et al.  Cognitive effects of one season of head impacts in a cohort of collegiate contact sport athletes. Neurology Beckwith JG et al.  Head impact exposure sustained by football players on days of diagnosed concussion.  Med Sci Sports Exerc 2013; 45:737-746.Talavage TM et al.  Functionally-detected cognitive impairment in high school football players without clinically-diagnosed concussion.  J NeurotraumaMiller JR et al.  Comparison of preseason, midseason, and postseason neurocognitive scores in uninjured collegiate football players.  Am J Sports Med 2007; 35:1284-1288.Mihalik JP, Bell DR, Marshall SW, Guskiewicz KM.  Measurement of head impacts in collegiate football players: an investigation of positional and event-type differences.  Neurosurgery 2007; 61:1229-1235.Trulock S, Oliaro S.  Practice contact. Safety in College Football Summit.  Presented January 22, 2014, Atlanta, GA.Crison JJ et al.  Frequency and location of head impact exposures in individual collegiate football players.  J Athl Train

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