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Updated: Jul 12, 2025
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Evaluating the Function of the Foot Core System in the Elderly
Published on: March 11, 2022
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在静静地站立时,脚核心系统的能力和神经肌肉控制的年龄相关差异
Jiaqi Lai1,2, Yinyan Ye3, Dongfeng Huang3,4
1School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China.
Scandinavian journal of medicine & science in sports
|October 24, 2023
概括
老年人表现出脚部核心强度和灵敏度降低,影响平衡控制比年轻人更大. 这表明与年龄相关的脚部功能下降需要补偿性硬化策略.
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:
- 脚核心系统对于保持直立姿势至关重要.
- 衰老显著影响肌肉骨和神经肌肉功能,但其对足部核心的具体影响仍然不清楚.
研究的目的:
- 为了研究与年龄相关的足部核心容量和神经肌肉控制在静静站立期间的变化.
- 探索老年人的脚核心功能和姿势稳定性之间的关系.
主要方法:
- 在年轻和年长的成年人之间比较足部核心容量 (脚强度,肌肉厚度,皮肤敏感性) 和姿势稳定性 (压力中心).
- 在静态站立任务中记录了关键脚和脚肌肉的电肌图 (EMG).
- 分析了不同频段的肌肉协同作用和肌肉间的一致性.
主要成果:
- 与年轻人相比,老年人表现出减少了幻觉曲器厚度,较弱的脚强度和减少的脚下皮肤敏感性.
- 在老年人中,脚核心容量 (幻觉曲器厚度,足部敏感性) 与较差的姿势稳定性 (更高的COP速度) 有关.
- 老年人表现出弓和脚周围肌肉合收缩的增加,肌肉间连贯性减少,表明神经肌肉策略发生了变化.
结论:
- 脚的核心容量随着年龄的增长而下降,使老年人更加依赖脚的特定结构来保持平衡.
- 在老年人中,增加肌肉收缩可能是补偿脚部核心功能减弱的策略.
- 肌肉间连贯性减少表明,衰老可能会增加神经对保持站立时平衡的需求.
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