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Subconcussive head impact exposure between drill intensities in U.S. high school football

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  • Kyle Kercher
  • Jesse A Steinfeldt
  • Jonathan T Macy
  • Keisuke Ejima
  • Keisuke Kawata

Abstract

USA Football established five levels-of-contact to guide the intensity of high school football practices. The objective of this study was to examine head impact frequency and magnitude by levels-of-contact to determine which drills had the greatest head impact exposure. Our primary hypothesis was that there would be an incremental increase in season-long head impact exposure between levels-of-contact: air 100g) head impacts were more frequently observed during live and thud drills. Level-of-contact influences cumulative head impact frequency and magnitude in high-school football, with players incurring frequent, high magnitude head impacts during live, thud, and control. It is important to consider level-of-contact to refine clinical exposure guidelines to minimize head impact burden in high-school football.

Suggested Citation

  • Kyle Kercher & Jesse A Steinfeldt & Jonathan T Macy & Keisuke Ejima & Keisuke Kawata, 2020. "Subconcussive head impact exposure between drill intensities in U.S. high school football," PLOS ONE, Public Library of Science, vol. 15(8), pages 1-14, August.
  • Handle: RePEc:plo:pone00:0237800
    DOI: 10.1371/journal.pone.0237800
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