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在次最大手腕疲劳后恢复精细运动控制

Daniel Cousins¹, Alvin Fortaleza², Giulia A Albanese³

¹Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, St. Catharines, ON, USA.

|February 27, 2026

概括

下最大前臂肌肉疲劳会暂时损害精细运动技能和手部跟踪能力. 然而,运动的精度和流性显示在休息4分钟内快速恢复.

科学领域:

神经科学是一个神经科学.
生物力学生物力学
人类因素工程人类因素工程

背景情况:

精细运动技能对于日常活动至关重要,容易受到疲劳的影响.
了解肌肉疲劳对手部跟踪的影响对于康复和性能优化至关重要.

研究的目的:

为了研究重复的亚最大手动跟踪任务对精细运动性能的影响.
评估在诱导疲劳后手部追踪能力的短期恢复.

主要方法:

19名男性参与者使用触觉手腕机器人执行了一项手部追踪任务.
疲劳是通过在任务期间施加阻力 (40%的最大自发异比手腕力) 来诱导的.
性能指标包括握力,跟踪误差,图形误差和冲动比率在疲劳前和之后被测量,恢复时间超过10分钟.

主要成果:

在疲劳后观察到握力减少12%,在10分钟内持续低于基线.
运动质量指标 (跟踪错误,图形错误,冲动比率) 在疲劳后立即显著增加 (分别为23%,19%,27%).
这些运动质量损害在康复4分钟内正常化.

结论:

亚最大前臂肌肉疲劳可以暂时降低精细运动控制和手跟踪性能.
尽管持续减少握力,但运动精度和流性的关键方面在休息时迅速恢复.
这表明神经或肌肉快速适应机制可以在短暂的疲劳后恢复精细运动功能.

关键词:

疲劳疲劳疲劳疲劳疲劳准确度准确度准确度准确度准确度手臂前臂的前臂是什么意思手的手的手的手的手.机器人技术机器人工程机器人工程

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