利用头颈有限元模型研究散打运动中颈椎韧带损伤的风险

被引:6
作者
柳茵 [1 ]
李娜 [1 ]
熊玮 [2 ]
魏巍 [3 ]
叶斌 [1 ]
王维 [1 ]
机构
[1] 中南大学湘雅三医院放射科
[2] 湖南师范大学体育教育系
[3] Laboratory of Biomechanics and Application,MRT IFSTTAR-Aix-Marseille University
关键词
有限元分析; 颈椎; 散打; 韧带;
D O I
10.16156/j.1004-7220.2017.01.007
中图分类号
R686.5 [韧带疾病];
学科分类号
100220 [骨科学];
摘要
目的研究颈椎有限元模型在预测散打中颈椎韧带损伤风险的作用,比较摆拳及直拳击打后颈椎韧带受力的差异。方法基于CT图像利用图像处理软件Mimics进行头颈骨骼部分的三维重建,并导入Hyper Mesh建立一个有效的头颈有限元模型,在对该模型的力矩-运动范围及击打后头部加速度进行验证后,比较不同击打力量(2.60、3.30、4.35 kN)下直拳及摆拳击打对颈椎韧带受力大小、分布的差异。结果所建颈部有限元模型具有良好的生物有效性,其预测的受击打后头部线性加速度及旋转加速度与参考文献相符。在摆拳模拟中,韧带最大受力部位位于环枕韧带,当击打力从2.60 kN增加至4.35 kN时,摆拳击打后韧带受力最大值分别为207、265、263 N;而在直拳击打后韧带受力最大部位位于环枢韧带,其受力最大值分别为96.8、91.4、101.4 N。在同样的击打力量下,摆拳所致的颈椎韧带受力较直拳更大。结论与直拳相比,散打摆拳更容易引起颈椎韧带损伤;头颈有限元模型可用于散打所致颈部损伤的生物力学机制研究,为散打的训练及损伤预防提供更精确的参考。
引用
收藏
页码:38 / 45
页数:8
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