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脚机械传输:年龄影响和与步行时脚推断的关系

Aubrey J Gray¹, Kota Z Takahashi², Howard E Kashefsky³

¹Joint Department of Biomedical Engineering, The University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC, USA.

Journal of applied biomechanics

|November 5, 2024

概括

老年人表现出降低的脚机械传动 (FAMT),影响推开功率. 在FAMT中观察到这种与年龄相关的差异,但在本研究中与行走速度或强度没有显著相关.

科学领域:

生物力学生物力学
老年学是一门学科.
人类运动科学科学人类运动科学

背景情况:

与年轻人相比,老年人表现出较低的步行推卸力.
脚曲器功能障碍是主要原因,但脚相互作用越来越被认为对有效的推开至关重要.

研究的目的:

量化与年龄相关的足机械传动 (FAMT) 的差异.
为了研究FAMT和走路时脚推开之间的联系.

主要方法:

招募了14名年轻成年人 (25±6岁) 和15名老年人 (71±5岁).
测量了FAMT (机械传输) 测量,使用大松延伸和中部胃骨长度变化.
分析FAMT在特定范的metatarsophalangeal延伸 (0°-30°和30°-60°).

主要成果:

年长的成年人表现出比年轻的成年人低45%-48%的FAMT,在0°至30°的甲松延伸之间.
这种与年龄相关的FAMT差异在30°和60°的甲松延伸之间并不显著.
没有发现FAMT和喜欢的步行速度或脚推开强度之间的显著相关性.

结论:

与年龄相关的FAMT显著降低,存在于甲松延伸的初始阶段.
与步行结果缺乏相关性表明,在老年人中存在潜在的补偿机制.
需要进一步的研究来探索步行过程中的肌肉活动和详细的足部机制,以理解这些发现.

关键词:

老化的老化衰老的老化甲足的足的关节的关节发电是发电的过程.超声波超声波是指超声波的使用.

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