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Examination of the relationship between peak linear and angular accelerations to brain deformation metrics in hockey helmet impacts

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  • Andrew Post
  • Anna Oeur
  • Blaine Hoshizaki
  • Michael D. Gilchrist

Abstract

Ice hockey is a contact sport which has a high incidence of brain injury. The current methods of evaluating protective devices use peak resultant linear acceleration as their pass/fail criteria, which are not fully representative of brain injuries as a whole. The purpose of this study was to examine how the linear and angular acceleration loading curves from a helmeted impact influence currently used brain deformation injury metrics. A helmeted Hybrid III headform was impacted in five centric and non-centric impact sites to elicit linear and angular acceleration responses. These responses were examined through the use of a brain model. The results indicated that when the helmet is examined using peak resultant linear acceleration alone, they are similar and protective, but when a 3D brain deformation response is used to examine the helmets, there are risks of brain injury with lower linear accelerations which would pass standard certifications for safety.

Suggested Citation

  • Andrew Post & Anna Oeur & Blaine Hoshizaki & Michael D. Gilchrist, 2013. "Examination of the relationship between peak linear and angular accelerations to brain deformation metrics in hockey helmet impacts," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 16(5), pages 511-519, May.
    • Handle: RePEc:taf:gcmbxx:v:16:y:2013:i:5:p:511-519
    DOI: 10.1080/10255842.2011.627559
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    Cited by:

    1. Andrew Post & Clara Karton & T. Blaine Hoshizaki & Michael D. Gilchrist & Julian Bailes, 2016. "Evaluation of the protective capacity of baseball helmets for concussive impacts," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 19(4), pages 366-375, March.

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