The application of brain tissue deformation values in assessing the safety performance of ice hockey helmets

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Title: The application of brain tissue deformation values in assessing the safety performance of ice hockey helmets
Authors: Hoshizaki, Thomas Blaine
Walsh, Evan S.
Post, Andrew
et al.
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Date: 13-Jun-2012
Abstract: This research was undertaken to examine a new method for assessing the performance of ice hockey helmets. It has been proposed that the current centric impact standards for ice hockey helmets, measuring peak linear acceleration, have effectively eliminated traumatic head injuries in the sport, but that angular acceleration and brain tissue deformation metrics are more sensitive to the conditions associated with concussive injuries, which continue to be a common injury. Ice hockey helmets were impacted using both centric and non-centric impact protocols at 7.5 m/s using a linear impactor. Dynamic impact responses and brain tissue deformations from the helmeted centric and non-centric head form impacts were assessed with respect to proposed concussive injury thresholds from the literature. The results of the helmet impacts showed that the method used was sensitive enough to distinguish differences in performance between helmet models. The results have shown that peak linear acceleration yielded low magnitudes f response to an impact, but peak angular acceleration and brain deformation metrics consistently reported higher magnitudes, reflecting a high risk for incurring a mild traumatic brain injury.
Type of material: Journal Article
Publisher: Sage Publications
Journal: Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology
Volume: 226
Issue: 3-4
Start page: 226
End page: 236
Copyright (published version): 2012 Sage Publications
Keywords: Brain injuryIce hockeyConcussionFinite element modellingInjury reconstructionHelmet testing
DOI: 10.1177/1754337112448765
Language: en
Status of Item: Peer reviewed
Appears in Collections:Mechanical & Materials Engineering Research Collection

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