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刺激参数对电动神经刺激和肌肉延长联合应用时扭矩发展的影响

Antoine Pineau¹, Alain Martin¹, Romuald Lepers¹

¹INSERM UMR1093-CAPS, UFR des Sciences du SportUniversité Bourgogne, Dijon, France.

Journal of neurophysiology

|September 11, 2024

概括

将宽脉冲高频电刺激与肌肉延长相结合,通过激活附带通路来增强扭矩产生. 这种方法增加了扭矩时间的整体和持续的肌肉活动,提高了刺激的有效性.

科学领域:

神经科学是一个神经科学.
运动生理学运动生理学
生物医学工程生物医学工程

背景情况:

电刺激用于唤起肌肉收缩.
刺激参数会影响神经通路的激活 (异常与异常).
肌肉延长可能会调节引起的反应.

研究的目的:

研究如何将肌肉延长与不同电刺激参数相结合影响扭矩产生.
为了比较宽脉冲高频 (WPHF) 和窄脉冲低频 (NPLF) 刺激的效果,有或没有肌肉延长.

主要方法:

15名志愿者参与了这项研究.
在同度和延长条件下应用了两种刺激方式 (WPHF和NPLF).
测量并比较了扭矩时间积分和持续的电肌图学 (EMG) 活动.

主要成果:

相互作用效应显示了WPHF与延长 (WPHF+LEN) 和其他条件之间的显著差异.
与单独使用WPHF,NPLF+LEN和NPLF相比,WPHF+LEN导致更高的扭矩-时间积分 (228.4Nm·s) 和持续的EMG活动 (0.085).
这些发现表明,WPHF+LEN增强了 afferent 途径的贡献.

结论:

将肌肉延长与WPHF电刺激相结合,可以显著增加扭矩产生.
这种增强归因于 afferent 途径的放大贡献,特别是 Ia afferents.
建议WPHF刺激以利用肌肉延长来提高扭矩输出和刺激效率.

关键词:

它的附属物.增强强力的增强力.持续的内向电流持续的内向电流三叉体 surae surae 三叉体 surae 三叉体 surae 三叉体 surae 三叉体 surae

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