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患有慢性脚不稳定的个体在脚变动期间表现出长肌的区域激活发生变化

Guillermo Mendez-Rebolledo¹, Rodrigo Guzmán-Venegas², Carlos Cruz-Montecinos³

¹Laboratorio de Investigación Somatosensorial y Motora, Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás, Talca, Chile.

Scandinavian journal of medicine & science in sports

|November 14, 2023

概括

慢性脚不稳定 (CAI) 改变长肌的激活,特别是在后部. 这种肌肉功能障碍可能会导致关节的复发,并影响康复策略.

科学领域:

生物力学生物力学
肌肉骨研究研究
运动医学运动医学

背景情况:

慢性脚不稳定性 (CAI) 与长的软弱和改变的肌肉激活模式有关.
以前的表面电肌图 (sEMG) 研究显示了相互矛盾的结果,可能是由于空间分辨率有限.
高密度sEMG (HD-sEMG) 显示了长的区域激活差异,但其在CAI中的地位尚不清楚.

研究的目的:

为了使用HD-sEMG比较患有CAI和没有CAI的个体之间长肌 (前后两部分) 的区域肌电活动.
为了研究与慢性脚不稳定性相关的肌肉激活模式的潜在变化.

主要方法:

招募了18名健康人 (非CAI组) 和18名有CAI的人.
利用HD-sEMG记录长的肌电活动在脚变动在不同的力水平.
在前后两部分测量了质量中心 (COM) 位移和sEMG振幅.

主要成果:

与没有CAI组相比,CAI组在长后部表现出明显较低的sEMG振幅 (p=0.0001).
对于该组来说,一个显著的主要效应表明CAI组的COM前部转移 (p=0.0040).
这些结果表明,CAI患者的长肌区域肌肉活化发生变化.

结论:

在脚变动期间,CAI与长肌肉的区域激活发生变化有关.
后部部位活动减少和CAI前部COM转移表明潜在的补偿机制或功能障碍.
这些发现对设计针对CAI的有针对性的强化计划,伤害预防和康复策略有影响.

关键词:

脚扭伤脚扭伤在慢性脚不稳定脚不稳定电动肌谱学电动肌谱学长腿骨 (fibularis longus) 是一个长腿骨.高密度的表面电动图谱.神经肌肉控制控制神经肌肉控制区域激活活动康复康复康复康复康复康复

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