Wilcox Bethany J, Beckwith Jonathan G, Greenwald Richard M, Raukar Neha P, Chu Jeffrey J, McAllister Thomas W, Flashman Laura A, Maerlender Arthur C, Duhaime Ann-Christine, Crisco Joseph J
Bioengineering Laboratory, Department of Orthopaedics, The Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI, USA.
Simbex, Lebanon, NH, USA.
J Biomech. 2015 Jul 16;48(10):2201-4. doi: 10.1016/j.jbiomech.2015.04.005. Epub 2015 Apr 15.
Epidemiological evidence suggests that female athletes may be at a greater risk of concussion than their male counterparts. The purpose of this study was to examine the biomechanics of head impacts associated with diagnosed concussions in a cohort of female collegiate ice hockey players. Instrumented helmets were worn by 58 female ice hockey players from 2 NCAA programs over a three year period. Kinematic measures of single impacts associated with diagnosed concussion and head impact exposure on days with and without diagnosed concussion were evaluated. Nine concussions were diagnosed. Head impact exposure was greater in frequency and magnitude on days of diagnosed concussions than on days without diagnosed concussion for individual athletes. Peak linear accelerations of head impacts associated with diagnosed concussion in this study are substantially lower than those previously reported in male athletes, while peak rotational accelerations are comparable. Further research is warranted to determine the extent to which female athletes' biomechanical tolerance to concussion injuries differs from males.
流行病学证据表明，女运动员可能比男运动员更容易发生脑震荡。本研究的目的是检查一组女子大学冰球运动员中与确诊脑震荡相关的头部撞击生物力学。在三年时间里，来自两个美国大学体育协会（NCAA）项目的58名女子冰球运动员佩戴了装有传感器的头盔。评估了与确诊脑震荡相关的单次撞击的运动学指标，以及在有和没有确诊脑震荡的日子里的头部撞击暴露情况。共诊断出9例脑震荡。对于个体运动员而言，确诊脑震荡当天的头部撞击暴露在频率和强度上均高于未确诊脑震荡的日子。本研究中与确诊脑震荡相关的头部撞击的峰值线性加速度显著低于先前在男运动员中报告的数值，而峰值旋转加速度则相当。有必要进行进一步研究，以确定女运动员对脑震荡损伤的生物力学耐受性与男运动员的差异程度。
