TY - JOUR
T1 - Head impact exposure in practices correlates with exposure in games for youth football players
AU - Bellamkonda, Srinidhi
AU - Woodward, Samantha J.
AU - Campolettano, Eamon
AU - Gellner, Ryan
AU - Kelley, Mireille E.
AU - Jones, Derek A.
AU - Genemaras, Amaris
AU - Beckwith, Jonathan G.
AU - Greenwald, Richard M.
AU - Maerlender, Arthur C.
AU - Rowson, Steven
AU - Duma, Stefan M.
AU - Urban, Jillian E.
AU - Stitzel, Joel D.
AU - Crisco, Joseph J.
N1 - Funding Information:
Research reported in this publication was supported by the National Institutes of Health under the Award Number NIH R01NS094410. HIT System technology was developed in part under NIH R44HD40743 and research and development support from Riddell, Inc (Elyria, OH). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. The authors appreciate and acknowledge the researchers and institutions from which the data were collected and would also like to thank Bethany Wilcox and Arlene Garcia from Brown University. J.J.C., R.M.G., J.G.B., and Simbex have a financial interest in the instruments (HIT System, Sideline Response System, Riddell, Inc) that were used to collect the biomechanical data reported in this study.
Publisher Copyright:
© 2018 Human Kinetics, Inc.
PY - 2018/10
Y1 - 2018/10
N2 - 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.
AB - 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.
KW - HIT system
KW - Impacts per game
KW - Impacts per practice
KW - Linear acceleration
KW - Rotational acceleration
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U2 - 10.1123/jab.2017-0207
DO - 10.1123/jab.2017-0207
M3 - Article
C2 - 29651910
AN - SCOPUS:85055605119
VL - 34
SP - 354
EP - 360
JO - Journal of Applied Biomechanics
JF - Journal of Applied Biomechanics
SN - 1065-8483
IS - 5
ER -