步行协调与年龄相关的变化集中在逐步过渡的阶段
Elham Alijanpour1, Daniel M Russell1
1Ellmer College of Health Sciences, Macon & Joan Brock Virginia Health Sciences at Old Dominion University, Norfolk, VA 23529, USA.
Journal of biomechanics
|June 24, 2025
概括
老年人表现出细微的与年龄相关的下肢协调变化,特别是在步态转变期间. 这些微妙的协调转变可能解释了与年龄相关的步行速度和效率的下降.
科学领域:
- 生物力学 生物力学
- 老年学是指老年学的学科.
- 人类运动科学科学 人类运动科学
背景情况:
- 步行协调对于稳定的行走至关重要.
- 与年龄相关的步态变化已得到充分证实,但潜在的协调机制需要进一步研究.
- 了解这些变化对于旨在改善老年人移动性的干预措施至关重要.
研究的目的:
- 通过使用一种新型相位正常化方法,调查与年龄相关的下肢协调的差异.
- 为了确定特定的步行阶段和受衰老影响的关节协调模式.
- 探索改变协调和与年龄相关的步行参数变化之间的关系.
主要方法:
- 采用独特的步态阶段正常化方法,对步态进行时间连续分析.
- 在10名年轻人和10名老年人中使用连续相对阶段 (CRP) 评估肢体内和肢体间协调.
- 从参与者收集的步态数据,在仪器跑步机上以他们首选的步行速度 (PWS) 走路.
主要成果:
- 老年人基本上保持了与年轻人相似的协调模式.
- 在双重到单重支过渡期间,观察到关节膝关节和四肢间膝关节协调的显著差异.
- 较年长的成年人显示膝盖和关节角度的相位过渡发生了变化,并在关键步态过渡期间增加了四肢间关节协调变化.
结论:
- 与年龄相关的下肢协调变化是微妙的,在逐步过渡期间最突出.
- 这些微妙的协调变化可能会导致老年人偏好的步行速度降低,步骤长度缩短,代谢成本增加.
- 需要进一步的研究,以阐明这些协调变化与衰老中的功能步行障碍之间的直接联系.
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