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剪切引力的方向特异性反应,由于在平衡的站立中应用的多方向扰动,在和小脚下产生
Yangyang Xu1, Lewen Qian1, Yunchao Zhu1
1Institute of Biomedical Engineering and Technology, Academy for Engineering and Technology, Fudan University, 220 Handan Road, Shanghai, China.
Journal of biomechanics
|April 3, 2025
概括
人类的脚,特别是小脚,在保持平衡方面发挥着至关重要的作用,在外部干扰时产生显著的握力和引力. 这项研究量化了对稳定的贡献.
科学领域:
- 生物力学 生物力学
- 人体生理学 人体生理学
- 发动机控制器的控制器
背景情况:
- 以前对人类平衡的研究主要是检查下肢关节的主要关节.
- 在扰乱期间,和小脚对平衡的具体贡献仍未得到充分探索.
- 缺乏一种标准化的方法来评估在动态条件下的生理脚握力.
研究的目的:
- 在外部干扰期间调查和小脚的生物力学握力.
- 量化脚与地面接口上的剪切相互作用,以了解脚在平衡中的参与.
- 引入一种用于在扰乱条件下评估在生物体内脚抓功能的新方法.
主要方法:
- 使用了一个配备了仪器化的多轴力平台的机器人平台.
- 向参与者应用随机地面干扰,以模拟平衡挑战.
- 分析了在脚与地面接口的和小脚产生的剪切引力.
主要成果:
- 哈卢克斯和小脚对扰动有显著的,特定于方向的剪切反应.
- 来自脚的剪切引力的比例在后半平面扰动期间显著增加 (p < 0.05).
- 较小的脚在对侧扰动 (p < 0.05) 期间显示了剪切引力大幅增加,增强了抓地力.
结论:
- 和小脚是保持站立平衡的重要组成部分,通过产生剪切引力.
- 小脚具有独特的能力,可以增强抓地力,并在扰动后产生相当大的剪切力.
- 这些发现对开发针对性干预措施的姿势和平衡康复有重大影响.
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