肩膀外部与内部旋转比率与大学棒球投球中的生物力学有关
Hannah L Stokes1, Koco Eaton2, Naiquan Zheng1
1Depatment of Mechanical Engineering and Engineering Science, University of North Carolina at Charlotte, Charlotte, NC, USA.
Journal of applied biomechanics
|March 11, 2024
概括
棒球投手的肩部外部与内部旋转比率 (SEIR) 与特定的投手臂生物力学和关节扭矩有关. 监测肩部健康是了解投球机制和降低受伤风险的关键.
科学领域:
- 运动医学 运动医学
- 生物力学 生物力学
- 整形外科 整形外科 整形外科
背景情况:
- 投球机制显著影响棒球表现和受伤风险.
- 了解肩膀体检结果和游戏中的生物力学之间的关系对大学投手至关重要.
研究的目的:
- 在体检和投篮的生物力学过程中调查肩部外部与内部旋转比率 (SEIR) 和其他肩部旋转特性之间的相关性.
- 为了检查肩膀体检结果和在大学棒球投手中投手臂生物力学之间的关系.
主要方法:
- 使用定制无线设备量化测量肩部运动范围.
- 收集240赫兹的投运动数据,使用自定义程序计算投手臂运动和加载.
- 应用线性回归和分析差异测试来分析物理检查结果与生物力学之间的关系.
主要成果:
- SEIR显示了与脚接触时的肩膀水平引角度,最大的肩膀外部旋转,最大的肩膀线性速度和释放球时的肘部角度有显著的相关性.
- 在SEIR组之间观察到的显著差异是肩膀近距离力,引扭矩,内部旋转扭矩,水平引扭矩,肘部中部力和Varus扭矩.
- Glenohumeral内部旋转缺陷和总旋转运动缺陷与抛手臂运动或关节负荷没有显著关系.
结论:
- 肩部外部与内部旋转比率 (SEIR) 是与特定投篮生物力学相关的相关临床测量.
- 肩部健康监测对于全面了解大学棒球投手投球机制至关重要.
- Glenohumeral内部旋转缺陷和总旋转运动缺陷可能不是改变投球生物力学的主要指标.
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