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在持续肌肉收缩期间,半球间抑制中没有调节,通过ipsilateral静止期来衡量

Satoshi Kudoh¹, Yuya Matsuda², Rin Kosuge²

¹Department of Rehabilitation, Sapporo Hakuyokai Hospital, Sapporo, JPN.

|December 15, 2025

概括

通过ipsilateral静止期 (ISP) 测量的半球间抑制 (IHI) 没有随着收缩强度或肌肉类型的变化而改变. 这表明其他大脑区域,而不是初级运动皮层激发能力,调节IHI.

科学领域:

神经科学是一个神经科学.
发动机控制器的控制器
人体生理学人体生理学

背景情况:

半球间抑制 (IHI) 是通过跨磁刺激 (TMS) 进行评估的.
双侧静止期 (ISP) 量化了主要动力区域 (M1) 之间的IHI.
与收缩强度和肌肉类型有关的ISP的变异性尚未得到充分理解.

研究的目的:

调查收缩强度 (30%和50%MVC) 和对侧肢肌肉如何影响ISP持续时间.
探索ISP,运动唤起潜力 (MEP) 和肌肉活动之间的关系.

主要方法:

15名健康的成年人参加.
电肌图 (EMG) 监测了ISP和欧洲议会议员.
在涉及第一个背内骨肌和双臂肌肌肉的运动任务期间,TMS应用于M1.

主要成果:

不同的收缩强度或肌肉类型之间没有观察到ISP持续时间的显著变化.
运动唤起潜能 (MEP) 显示出与收缩强度和肌肉类型相关的显著相互作用和主要影响.
尽管M1兴奋度的变化,ISP仍然保持一致.

结论:

在测试条件下,M1刺激性的变化不会影响ISP持续时间.
其他大脑区域,可能是补充运动区域 (SMA),可能在调节IHI方面发挥作用.
需要进一步的研究来阐明IHI背后的神经机制.

关键词:

电动肌谱学电动肌谱学两个半球间的抑制.ipsilateral 沉默的时间发动机唤起的潜力跨的磁性刺激

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