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

作者：Post Andrew^*; Oeur Anna; Hoshizaki Blaine; Gilchrist Michael D

来源：Computer Methods in Biomechanics and Biomedical Engineering, 2013, 16(5): 511-519.

DOI：10.1080/10255842.2011.627559

• neurotrauma
• impact biomechanics
• concussion
• ice hockey

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.

• 出版日期2013-5-1