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Journal Article

Citation

Cournoyer J, Post A, Rousseau P, Hoshizaki B. J. Athl. Train. 2016; 51(3): 258-263.

Affiliation

University of Ottawa, Ontario, Canada.

Copyright

(Copyright © 2016, National Athletic Trainers' Association (USA))

DOI

10.4085/1062-6050-51.4.08

PMID

26967549

Abstract

CONTEXT:  Football players can receive up to 1400 head impacts per season, averaging 6.3 impacts per practice and 14.3 impacts per game. A decrease in the capacity of a helmet to manage linear acceleration with multiple impacts could increase the risk of traumatic brain injury.

OBJECTIVE:  To investigate the ability of football helmets to manage linear acceleration with multiple high-energy impacts.

DESIGN:  Descriptive laboratory study. SETTING:  Laboratory. MAIN OUTCOME MEASURE(S):  We collected linear-acceleration data for 100 impacts at 6 locations on 4 helmets of different models currently used in football. Impacts 11 to 20 were compared with impacts 91 to 100 for each of the 6 locations.

RESULTS:  Linear acceleration was greater after multiple impacts (91-100) than after the first few impacts (11-20) for the front, front boss, rear, and top locations. However, these differences are not clinically relevant as they do not affect the risk for head injury.

CONCLUSIONS:  American football helmet performance deteriorated with multiple impacts, but this is unlikely to be a factor in head-injury causation during a game or over a season.


Language: en

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