弧形支板刚度对单脚着陆时下肢生物力学的影响
Chu-Hao Li1, Qiu-Qiong Shi1,2, Kit-Lun Yick1,2
1School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong SAR 999077, China.
门支的刚度显著影响着陆生物力学. 更坚固的门支可以改善冲击吸收,并在着陆时减少膝盖负荷,有利于下肢健康.
科学领域:
- 生物力学 生物力学
- 整形外科 整形外科 整形外科
- 运动医学 运动医学
背景情况:
- 脚弓对于移动期间的冲击吸收至关重要.
- 弓形支硬度对着陆生物力学的影响还不太清楚.
- 了解这些影响可以为支持性鞋类的设计提供信息.
研究的目的:
- 为了研究不同弧形支刚度在单脚降落着陆期间对下肢生物力学的影响.
- 为了在不同的支条件下比较动力学和动力学参数.
主要方法:
- 十二名男性参与者 (正常和平脚) 从45厘米进行了落地.
- 测试了四种条件:没有门支片 (NAP),软 (SAP),中等 (MAP) 和高刚度门支片 (HAP).
- 运动捕捉和力板记录了联合角度,时刻和垂直地面反应力 (vGRF).
主要成果:
- 形板的刚性显著改变了脚和膝盖的动力学.
- 没有门支 (NAP) 与软/中等支相比,显示出更多的脚脚下屈曲和膝盖/部运动范围.
- 高刚性支 (HAP) 降低了关节的顶峰背曲的时刻,增加了膝盖的顶峰曲.
- 膝盖伸展的最高峰时刻发生在NAP上,明显高于MAP或HAP.
- 没有发现部时刻或vGRF参数的显著差异.
结论:
- 坚固的门支 (MAP,HAP) 在降落过程中调节下肢机械.
- 硬硬度门支可以增强冲击吸收能力,减少膝关节关节负荷.
- 研究结果表明,对预防伤害和提高表现有潜在的益处.
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