脚推离能否纠正相对于质量中心状态的前后脚部位置的错误?
Jian Jin1, Jaap H van Dieën1, Dinant Kistemaker1
1Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
PeerJ
|June 5, 2023
概括
人类使用脚推离扭矩来纠正稳定状态行走时的脚位错误. 这种推开策略有助于稳定步态,可能对预防老年人跌倒至关重要.
科学领域:
- 生物力学 生物力学
- 人类的机动运动.
- 步行稳定性 步行稳定性
背景情况:
- 了解人类步行稳定是预测老年人跌倒的关键.
- 之前的模型表明,脚部位置和脚推开控制可以稳定前后方向的步态.
研究的目的:
- 为了调查脚推离控制是否用于不受干扰的,稳定状态的行走.
- 为了确定脚推离扭矩是否与脚位错误相关.
主要方法:
- 线性回归模拟了基于质量中心 (CoM) 状态的足部位置准确性.
- 足部位置的残余差异被解释为错误.
- 相关性分析检查了双立位期间脚位错误和脚推离扭矩之间的关系.
主要成果:
- 在30名参与者中,脚推离扭矩与脚位错误有显著的相关性.
- 在双立场阶段,峰值相关性高达0.39.
- 在正常步行速度和慢步行速度时都观察到相关性.
结论:
- 人类采用脚推开策略,以纠正稳定状态行走时的脚位错误.
- 这一发现凸显了推开控制在维持步态稳定的作用.
- 这项研究提供了对可能预防老年人跌倒的机制的见解.
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