头部在综合格斗中撞击的有限元模拟。
Finite element simulation of head impacts in mixed martial arts.
机构信息
Technological University Dublin, Tallaght, Dublin, Ireland.
Division of Sports Science, Pusan National University, Busan, Republic of Korea.
出版信息
Comput Methods Biomech Biomed Engin. 2021 Feb;24(3):278-288. doi: 10.1080/10255842.2020.1826457. Epub 2020 Oct 5.
Abstract
Thirteen MMA athletes were fitted with the MiG2.0 Stanford instrumented mouthguard. 451 video confirmed impacts were recoded during sparring sessions and competitive events. The competitive events resulted in five concussions. The impact with the highest angular acceleration from each event was simulated using the GHBMC head model. Average strain in the corpus callosum of concussed fighters was 0.27, which was 87.9% higher than uninjured fighters and was the best strain indicator of concussion. The best overall predictor of concussion found in this study was shear stress in the corpus callosum which differed by 111.4% between concussed and uninjured athletes.
摘要
13 名 MMA 运动员佩戴了 MiG2.0 斯坦福仪器化牙套。在训练和比赛中，451 段视频记录下了 451 次确认的撞击。比赛中共有 5 名运动员脑震荡。利用 GHBMC 头部模型对每次撞击中具有最高角加速度的影响进行了模拟。脑震荡运动员胼胝体的平均应变为 0.27，比未受伤运动员高 87.9%，是脑震荡的最佳应变指标。本研究中发现的脑震荡的最佳综合预测指标是胼胝体的剪切应力，脑震荡运动员和未受伤运动员之间相差 111.4%。
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