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手肌在棍使用中的协同作用:对象大小和重量的影响
Kazuya Kurauchi1, Hiroshi Kurumadani1, Shota Date1
1Laboratory at Analysis and Control of Upper Extremity Function, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Hand surgery & rehabilitation
|July 28, 2024
概括
物体的重量,而不是宽度,在使用子时显著影响手部肌肉活动. 更重的物体需要更大的肌肉努力来抓取和操纵,这对于康复练习至关重要.
科学领域:
- 生物力学 生物力学
- 神经科学是一个神经科学.
- 人类运动控制人体运动控制
背景情况:
- 棍操纵是一种复杂的运动技能,需要复杂的手肌协调.
- 了解手部内在和外在肌肉之间的相互作用对于分析精细运动任务至关重要.
研究的目的:
- 为了研究肌肉协调在棍操纵中的作用.
- 为了确定物体宽度和重量对手部肌肉活动在子使用期间的影响.
主要方法:
- 使用表面电肌图 (sEMG) 来测量手部内在和外在肌肉活动.
- 参与者使用子抓住不同宽度 (1-3厘米) 和重量 (10g和40g) 的物体.
主要成果:
- 在棍操纵过程中,观察到手部内在和外在肌肉之间的协调肌肉活动模式.
- 物体的宽度没有显著影响肌肉活动,但物体的重量有.
- 与10克物体相比,40克物体的肌肉活动在子关闭和抓取时更大.
- 在抓住物体时,手部内在肌肉始终活跃,不论物体重量如何.
结论:
- 物体的重量是影响棍操纵肌肉努力的关键因素.
- 在康复环境中建议考虑物体重量,以优化日常饮食任务的训练,并防止肌肉过载.
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