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Updated: Mar 3, 2026

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability

Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability

Published on: September 18, 2020

在患有慢性侧脚不稳定的个体中,脚逆转-逆转肌肉强度和姿势控制的改变

Wei-Chuang Cai¹, Xiao-Bing Cai², Yue-Zhen Liang³

¹Department of Surgery, Beidaihe Rest and Recuperation Center of the Joint Logistics Support Force of PLA, Hebei Province, China.

Journal of musculoskeletal & neuronal interactions

|March 1, 2026

概括

患有慢性侧脚不稳定 (CLAI) 的人表现出较弱的反转强度和降低的反转强度比率. 姿势控制受损,特别是在没有视觉输入的情况下,表明潜在的自身感知缺陷.

科学领域:

生物力学和运动控制
运动医学运动医学
整形外科整形外科整形外科

背景情况:

慢性侧脚不稳定 (CLAI) 是脚扭伤后的一个常见情况.
它与持续的症状有关,包括疼痛,反复的不稳定性和功能障碍.
了解潜在的神经肌肉缺陷对于有效的康复至关重要.

研究的目的:

为了研究脚的逆转和逆转强度.
评估与健康对照组相比,CLAI患者的姿势控制.
探索力量赤字和平衡损害之间的关系.

主要方法:

23名CLAI患者和14名对照人群在不同速度下进行了异动力学强度测试 (反转/反转).
在单腿姿势 (眼睛开/闭) 中,使用压力中心 (COP) 度量来评估姿势控制.
计算了正常化为体重 (PT/BW) 的峰值扭矩.

主要成果:

在所有测试的速度上,CLAI患者的变压强度 (PT/BW) 显著降低.
在CLAI组中,逆转强度比率显著降低.
姿势控制缺陷 (更长的COP轨迹,更大的区域) 仅在闭眼姿势时在CLAI患者中观察到.

结论:

CLAI的特点是特异性的肌肉衰弱和改变的强度比.
在CLAI中,姿势控制受损在视觉剥夺条件下加剧,这表明自身感知系统受损.
视觉输入可以部分补偿眼睛开放条件下的平衡缺陷.

关键词:

脚关节脚关节脚关节慢性侧脚不稳定长期侧脚不稳定常规化肌肉强度肌肉强度逆转肌肉的力量逆转肌肉的力量峰值扭矩与车身重量之间的比率.

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