Association between Preseason/Regular Season Head Impact Exposure and Concussion Incidence in NCAA Football

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dc.contributor.authorStemper, Brian D.en
dc.contributor.authorHarezlak, Jaroslawen
dc.contributor.authorShah, Alok S.en
dc.contributor.authorRowson, Stevenen
dc.contributor.authorMihalik, Jason P.en
dc.contributor.authorRiggen, Larryen
dc.contributor.authorDuma, Stefanen
dc.contributor.authorPasquina, Paulen
dc.contributor.authorBroglio, Steven P.en
dc.contributor.authorMcAllister, Thomas W.en
dc.contributor.authorMcCrea, Michael A.en
dc.date.accessioned2022-06-09T19:07:10Zen
dc.date.available2022-06-09T19:07:10Zen
dc.date.issued2022-06en
dc.description.abstractPurpose: Contact sport athletes are exposed to a unique environment where they sustain repeated head impacts throughout the season and can sustain hundreds of head impacts over a few months. Accordingly, recent studies outlined the role that head impact exposure (HIE) has in concussion biomechanics and in the development of cognitive and brain-based changes. Those studies focused on time-bound effects by quantifying exposure leading up to the concussion, or cognitive changes after a season in which athletes had high HIE. However, HIE may have a more prolonged effect. This study identified associations between HIE and concussion incidence during different periods of the college football fall season. Methods: This study included 1120 athlete seasons from six National Collegiate Athletic Association Division I football programs across 5 yr. Athletes were instrumented with the Head Impact Telemetry System to record daily HIE. The analysis quantified associations of preseason/regular season/total season concussion incidence with HIE during those periods. Results: Strong associations were identified between HIE and concussion incidence during different periods of the season. Preseason HIE was associated with preseason and total season concussion incidence, and total season HIE was associated with total season concussion incidence. Conclusions: These findings demonstrate a prolonged effect of HIE on concussion risk, wherein elevated preseason HIE was associated with higher concussion risk both during the preseason and throughout the entire fall season. This investigation is the first to provide evidence supporting the hypothesis of a relationship between elevated HIE during the college football preseason and a sustained decreased tolerance for concussion throughout that season.en
dc.description.notesThis publication was made possible, in part, with support from the Grand Alliance Concussion Assessment, Research, and Education (CARE) Consortium, funded in part by the National Collegiate Athletic Association and the Department of Defense (DOD). The US ArmyMedical Research Acquisition Activity (Fort DetrickMD) is the awarding and administering acquisition office. This work was supported by the Office of the Assistant Secretary of Defense for Health Affairs through the Psychological Health and Traumatic Brain Injury Program under Award NO W81XWH-14-2-0151. Opinions, interpretations, conclusions, and recommendations are those of the author and are not necessarily endorsed by the Department of Defense (DHP funds). This work was also supported by Veterans Affairs Medical Research.; Beyond funding for this study reported in the Acknowledgments section, some authors also acknowledge other potential conflicts of interest. Dr. Stemper reported research funding from the DOD, Department of Veterans Affairs Rehabilitation Research and Development Service, the Department of Transportation, Office of Naval Research, and National Institutes of Health (NIH). Dr. McCrea reported additional research funding from the DOD, NIH, Department of Veterans Affairs, Abbott Laboratories, and the National Football League (NFL). Dr. Broglio has current or past research funding from the NIH; Centers for Disease Control and Prevention; DOD-USA Medical Research Acquisition Activity, National Collegiate Athletic Association; National Athletic Trainers' Association Foundation; NFL/Under Armour/GE; Simbex; and ElmindA. He is coauthor of Biomechanics of Injury (third edition, Human Kinetics), and he has consulted for US Soccer (paid), US Cycling (unpaid), and medicolegal litigation, and received speaker honorarium and travel reimbursements for talks given. He has a patent pending on "Brain Metabolism Monitoring Through CCO Measurements Using All-FiberIntegrated Super-Continuum Source" (US Application No. 17/164,490). Dr. Mihalik declares unrelated funding from the DOD, Centers for Disease Control and Prevention, NIH, National Operating Committee on Standards for Athletic Equipment, and the NFL.en
dc.description.sponsorshipGrand Alliance Concussion Assessment, Research, and Education (CARE) Consortium; National Collegiate Athletic Association and the Department of Defense (DOD); US ArmyMedical Research Acquisition Activity (Fort DetrickMD); Office of the Assistant Secretary of Defense for Health Affairs through the Psychological Health and Traumatic Brain Injury Program [NO W81XWH-14-2-0151]; Veterans Affairs Medical Research; Department of Veterans Affairs Rehabilitation Research and Development Service; Department of Transportation, Office of Naval Research; National Institutes of Health (NIH); DOD; NIH; Department of Veterans Affairs; Abbott Laboratories; National Football League (NFL); Centers for Disease Control and Prevention; DOD-USA Medical Research Acquisition Activity, National Collegiate Athletic Association; National Athletic Trainers' Association Foundation; NFL/Under Armour/GE; Simbex; ElmindA; National Operating Committee on Standards for Athletic Equipment; NFLen
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1249/MSS.0000000000002874en
dc.identifier.eissn1530-0315en
dc.identifier.issn0195-9131en
dc.identifier.issue6en
dc.identifier.pmid35081093en
dc.identifier.urihttp://hdl.handle.net/10919/110532en
dc.identifier.volume54en
dc.language.isoenen
dc.publisherLippincott Williams & Wilkinsen
dc.rightsPublic Domain (U.S.)en
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/en
dc.subjecthead injuriesen
dc.subjectconcussionen
dc.subjecthead impact exposureen
dc.subjectbiomechanicsen
dc.subjectfootball (american)en
dc.titleAssociation between Preseason/Regular Season Head Impact Exposure and Concussion Incidence in NCAA Footballen
dc.title.serialMedicine & Science in Sports & Exerciseen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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