曲线行走提高了跌倒风险,并在不受约束的人类滑落后调节了滑动和补偿步骤属性
Corbin M Rasmussen1, Seongwoo Mun1, Abderrahman Ouattas1,2
1Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE 68182, USA.
The Journal of experimental biology
|March 8, 2024
概括
在曲面行走时,跌倒的可能性更大,尤其是在内脚早期滑倒时. 更紧的曲线增加了滑落风险,改变了脚的运动,影响了平衡恢复策略.
科学领域:
- 生物力学 生物力学
- 人类的机动运动.
- 预防跌倒,防止跌倒.
背景情况:
- 滑行相关的跌倒是一个重大问题,但对曲线行走路径的研究仍然有限.
- 与直线行走相比,曲线路径带来了独特的生物力学挑战,并增加了滑倒的风险.
研究的目的:
- 调查生物力学,补偿步行和跌倒风险,与固定速度曲线行走过程中滑倒相关.
- 检查路径曲率对滑动动态和平衡恢复的速度独立的影响.
主要方法:
- 21名参与者经历了被可穿戴的减少摩擦装置诱导的不受约束的滑动.
- 收集了运动捕获和带负载单元数据,以分析滑动机制和力.
主要成果:
- 跌倒最有可能是早期的姿势滑落到内脚,在更紧的曲线上风险升级.
- 滑动距离和峰值速度随着较晚的立场开始而减少,但在更紧的路径上加速.
- 补偿步骤分别为外侧和内侧脚滑动的前侧和后侧,在较晚的发病阶段,外侧脚滑动的步骤较长.
结论:
- 滑动方向影响平衡威胁,步行速度可能会影响滑动的可能性.
- 较紧的曲率和特定的滑动时间/方向造成最大的不稳定.
- 这些发现可以为曲线行走场景提供有针对性的平衡训练.
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