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机械肌图分析用于在举重任务期间评估肌肉活动

Matthieu Correa^1,2,3, Maxime Projetti³, Isabelle A Siegler^1,2

¹Laboratoire CIAMS (Complexité, Innovation, Activités Motrices et Sportives), Université Paris-Saclay, CEDEX, 91405 Orsay, France.

Sensors (Basel, Switzerland)

|September 28, 2023

概括

机械肌图 (MMG) 显示了在功能任务期间测量肌肉活动的前景,在同位数收缩期间提供与电肌图 (EMG) 相似的可靠性,并在动态运动期间提供更高的灵敏度.

科学领域:

生物力学生物力学
人体生理学人体生理学
发动机控制器的控制器

背景情况:

电肌图 (EMG) 是评估肌肉电活动的常用方法.
机械肌谱 (MMG) 通过测量肌肉产生的机械振荡来提供一种非侵入性的替代方案.
在实验室环境之外的动态功能任务中,MMG的实用性需要进一步研究.

研究的目的:

为了比较电子肌图 (EMG) 和机械肌图 (MMG) 记录在异度和动态模拟提重任务期间.
在不同收缩强度下评估EMG和MMG的重复性和信号特征.
评估MMG在功能移动期间对负载变化的敏感性.

主要方法:

22名男性在25%,50%和75%的最大自愿收缩 (MVC) 时进行了同度和动态上肢收缩.
在整个协议中,EMG和MMG信号被同时记录.
根平均平方 (RMS) 和平均功率频率 (MPF) 被提取为信号特征.

主要成果:

在同位数收缩期间,EMG和MMG的重复性相似.
两种技术都显示了RMS和力之间的类似关系,RMS增加了高达75%的MVC.
MMG的RMS (RMSMMG) 比EMG的RMS (RMSEMG) 更敏感于动态提升期间的负载变化.

结论:

MMG是一种可行的技术,用于在实验室外的功能活动中评估肌肉活动.
MMG提供了与在同度条件下EMG可比的有价值的见解.
在动态任务中,MMG的增强灵敏度为体育科学,人体工程学和人机界面的应用开辟了新的途径.

关键词:

动态收缩动态收缩电动肌谱学电动肌谱学异度收缩异度收缩异度收缩起重货物 - 起重货物的起重机械学图 (mechanomyography) 是一种机械学图.

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