用3D运动捕捉系统评估关节位置感觉:在肩部运动中,肌肉激活在没有参考角度的情况下的影响
Wootaek Lim1,2
1Department of Physical Therapy, College of Health and Welfare, Woosong University, Daejeon, Republic of Korea.
概括
没有参考,很难估计连接角度. 增加肌肉激活提高了可靠性,但没有提高肩关节位置感应 (JPS) 在曲和绑架中的准确性.
科学领域:
- 生物力学 生物力学
- 神经科学是一个神经科学.
- 运动学 运动学
背景情况:
- 关节位置感觉 (JPS) 对于运动控制至关重要,通常使用关节位置复制 (JPR) 来评估.
- 传统的JPR方法缺乏参考角度,这对准确的评估造成了重大限制.
- 本研究解决了没有直接参考角度的JPS评估的挑战.
研究的目的:
- 为了研究在肩曲和绑架过程中复制相对关节角度 (50%的先前获得的角度) 的准确性.
- 评估不同肌肉激活条件 (被动,活跃,增加重量的活跃) 对JPS精度的影响.
- 为了确定没有参考角度的JPS评估的可靠性和准确性.
主要方法:
- 参与者执行了肩膀曲和绑架到90度绝对目标,并记录了所达到的角度.
- 然后将相对目标角度 (50%的实现角度) 设置为复制.
- 在被动,主动和主动条件下对JPS进行了测试,在两个肩膀运动中增加了额外的努力条件.
主要成果:
- 在两个肩膀运动中观察到与绝对90度目标的显著偏差.
- 试验间的可靠性 (ICC) 随着曲和绑架的肌肉激活而增加.
- 关节位置错误与肩膀曲中的肌肉激活有所改善,但在绑架中没有显著改善;增加的努力没有进一步改善.
结论:
- 在没有参考角度的情况下复制目标关节角度是一个相当大的挑战.
- 肌肉激活提高了JPS评估的可靠性,特别是在肩膀曲方面.
- 研究结果提供了关于临床和体育环境中的自感评估的初步见解,这与康复和性能优化有关.
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