在长时间行走期间,脚位的逐步控制与年龄相关的差异
Ethan G Simaitis1, Yujin Kwon2, Jason R Franz1
1Lampe Joint Department of Biomedical Engineering, UNC Chapel Hill & NC State University, Chapel Hill, NC, USA.
Journal of biomechanics
|September 8, 2025
概括
与年轻的成年人相比,老年人在长时间的行走过程中对一步一步的步态控制的适应能力较低. 这种调整脚部位置的能力减少可能会增加跌倒的风险,并导致运动能力下降.
科学领域:
- 生物力学 生物力学
- 老年学是一门学科.
- 神经科学是一个神经科学.
背景情况:
- 步行对独立性至关重要,但老龄化会对神经肌肉功能和步行稳定性产生负面影响.
- 了解与年龄相关的步态控制变化对于维持老年人移动性和生活质量至关重要.
研究的目的:
- 为了量化长时间行走期间逐步控制的年龄相关差异.
- 调查足部位置 (步骤长度和宽度) 的时间持久性如何随着时间的推移在年轻人和老年人中发生变化.
主要方法:
- 员工置波动分析 (DFA) 用于评估步态参数的时间持久性.
- 测量了15名年轻人和15名老年人的运动数据 (步骤长度,步骤宽度),他们在跑步机上走了30分钟.
- 在6个5分钟的间隔内计算DFA缩放指数 (α),以表征脚位控制.
主要成果:
- 年轻的成年人通过采取更长,更窄的步骤来适应,并随着时间的推移显示了步骤宽度减少的时间持续性.
- 年长的成年人表现出相对不变的步动力学和DFAα值在整个行走时间.
- 在长时间行走期间调整步态参数的能力方面,观察到与年龄相关的显著差异.
结论:
- 老年人在长时间行走时调整脚部位置的能力下降,可能是由于感官反减少.
- 在步行控制中的这种降低适应能力可能会增加老年人群中不稳定和跌倒的风险.
- 研究结果提供了对流动性下降的见解,并可以为老年人适应性步行控制的干预措施提供信息.
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