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人类跨越不同方向行走的刚性和阻尼和行走试验

Lea Feld, Sandra Hellmers, Lena Schell-Majoor

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|December 3, 2025

概括

在跑步机上行走时,使用弹质量减缓模型评估了人类步行适应能力,这些模型在跑步机上行走时会出现意想不到的干扰. 这项研究通过分析步态动态,提供了对老年人跌倒风险预测的见解.

科学领域:

生物力学生物力学
人类的机动运动.
步态分析步态分析

背景情况:

人类的行走通常被模拟为弹质量减压 (SMD) 系统.
以前的研究集中在健康人群和标准步行,对应对意想不到的步态干扰的反应数据有限.
步态干扰对于预测跌倒至关重要,特别是在老年人中.

研究的目的:

在跑步机上行走时,将SMD模型分析扩展到中侧和前后方向.
为了研究人类步行的适应性,以应对意想不到的干扰.
建立基于步态动态预测跌倒风险的基础.

主要方法:

60名成年人 (18-87岁) 在穿着惯性测量单元 (IMU) 的扰动跑步机上行走.
步行数据,包括加速和力板数据,在正常行走和间扰动行走期间收集.
应用SMD模型来计算不同方向的阻尼和刚度系数.

主要成果:

弹刚度在中侧方向最低,在前后方向最高.
缓冲系数在中侧方向最低,在垂直方向最高.
与正常步行相比,间扰动步行表现出增加的刚性和变化的缓冲.

结论:

缓冲和刚度系数可以从跑步机数据中提取出不同方向的不同人群的缓冲和刚度系数.
这项研究突出了人类步行的适应性,并为理解反应动态平衡提供了基础.
这项研究提供了一种估计老年人跌倒风险因素的方法.

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