肩膀姿势在高中棒球投手投球力学中的作用
Yi-Hsuan Weng1, Tsun-Shun Huang2, Jiu-Jenq Lin1,3
1School and Graduate Institute of Physical Therapy, National Taiwan University, Taipei, Taiwan.
Journal of athletic training
|March 6, 2026
概括
肩膀姿势显著影响棒球投手在投球时的肩膀运动. 评估肩部姿势可以在没有复杂设备的情况下提供生物力学见解,有助于预防伤害和优化性能.
科学领域:
- 运动医学 运动医学
- 生物力学 生物力学
- 棒球投球分析 棒球投球分析
背景情况:
- 已知,肩部姿势受损会影响头巾生物力学.
- 在高中棒球投手的动态投球运动中,肩膀姿势和肩膀生物力学之间的特定关系以前没有被探索过.
研究的目的:
- 描述在高中棒球投手身上观察到的典型的肩膀姿势.
- 为了研究这些肩部姿势和在投运动期间的头骨骨生物力学之间的相关性.
主要方法:
- 在实验室环境中进行了一项描述性探索性研究.
- 38名高中棒球投手参加了比赛.
- 肩部姿势是使用形距离 (AD),胸部小指数 (PMI),脚指数 (SI) 和前方肩部角度 (FSA) 来量化的. 在投球过程中记录了骨动力学和肌肉激活 (上形[UT],前形[SA],下形,双臂[BB],三臂[TB],前形) 的情况.
主要成果:
- 在AD和肩膀上方旋转和后侧倾斜之间发现了中等到强烈的负相关性.
- PMI和FSA显示了与后侧倾斜的中度正相关性.
- 阿尔茨海默病与UT,SA,BB,TB和前腹骨的激活有中度至强度的正相关性. SI显示了与UT,BB和前腹骨激活的中度负相关性. FSA与SA和BB激活有中度负相关.
结论:
- 高中棒球投手在投球过程中,肩膀姿势和肩膀生物力学之间存在显著的中度至强度的相关性.
- 这些发现表明,肩膀姿势评估可以提供有价值的生物力学见解.
- 将姿势评估整合到例行查中,可能提供一种收集生物力学数据的实用方法,而不需要先进的运动捕捉系统.
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