一步一步的适应步骤:年轻人和老年人如何克服障碍
Ashwini Kulkarni1, Chuyi Cui2, Shirley Rietdyk3
1Ellmer College of Health Sciences, Old Dominion University, 3061 Health Sciences 2 Building,, Norfolk, VA 23529, United States.
Gait & posture
|April 22, 2025
概括
年长的成年人在接近障碍物时比年轻的成年人更容易破坏步伐的稳定性,这表明了防止的策略. 这一发现可以帮助评估神经肌肉控制健康状况.
科学领域:
- 生物力学 生物力学
- 老年学是一门学科.
- 发动机控制器的控制器
背景情况:
- 年轻的成年人调整步骤的长度,准确地将脚围绕障碍物,平衡准确性与稳定性.
- 这种步骤长度不稳定可能会提高脚位的准确性,但也会影响整体平衡.
研究的目的:
- 为了调查健康的老年人是否表现出比年轻的成年人更大的步长不稳定性,当导航静止的障碍物.
主要方法:
- 健康的年轻人和老年人反复接近并越过一个可见的障碍物.
- 不受控制的分流方法分析了脚位数据,以计算跨阶段共变率 (ISCz) 指数.
主要成果:
- 在接近和跨越障碍物时,这两个年龄组都减少了步骤长度稳定性 (降低了ISCz).
- 与年轻的成年人相比,老年人表现出步骤长度稳定性的显著降低 (14.5%较低的ISCz).
结论:
- 老年人增加的步骤长度不稳定可能是故意适应,以尽量减少倒风险.
- ISCz指数可以作为一个有价值的临床工具来评估神经肌肉控制系统的健康.
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