Head impact exposure in practices correlates with exposure in games for youth football players

Srinidhi Bellamkonda, Samantha J. Woodward, Eamon Campolettano, Ryan Gellner, Mireille E. Kelley, Derek A. Jones, Amaris Genemaras, Jonathan G. Beckwith, Richard M. Greenwald, Arthur C. Maerlender, Steven Rowson, Stefan M. Duma, Jillian E. Urban, Joel D. Stitzel, Joseph J. Crisco

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

This study aimed to compare head impact exposures between practices and games in football players ages 9 to 14 years, who account for approximately 70% of all football players in the United States. Over a period of 2 seasons, 136 players were enrolled from 3 youth programs, and 49,847 head impacts were recorded from 345 practices and 137 games. During the study, individual players sustained a median of 211 impacts per season, with a maximum of 1226 impacts. Players sustained 50th (95th) percentile peak linear acceleration of 18.3 (46.9) g, peak rotational acceleration of 1305.4 (3316.6) rad·s−2, and Head Impact Technology Severity Profile of 13.7 (24.3), respectively. Overall, players with a higher frequency of head impacts at practices recorded a higher frequency of head impacts at games (P < .001, r2 = .52), and players who sustained a greater average magnitude of head impacts during practice also recorded a greater average magnitude of head impacts during games (P < .001). The youth football head impact data quantified in this study provide valuable insight into the player exposure profile, which should serve as a key baseline in efforts to reduce injury.

Original languageEnglish (US)
Pages (from-to)354-360
Number of pages7
JournalJournal of applied biomechanics
Volume34
Issue number5
DOIs
Publication statusPublished - Oct 2018

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Keywords

  • HIT system
  • Impacts per game
  • Impacts per practice
  • Linear acceleration
  • Rotational acceleration

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Rehabilitation

Cite this

Bellamkonda, S., Woodward, S. J., Campolettano, E., Gellner, R., Kelley, M. E., Jones, D. A., ... Crisco, J. J. (2018). Head impact exposure in practices correlates with exposure in games for youth football players. Journal of applied biomechanics, 34(5), 354-360. https://doi.org/10.1123/jab.2017-0207