高中棒球运动员的腰部锁定旋转,投球时的干部旋转和投球速度之间的关系
1Department of Physical Therapy, Faculty of Health Science Technology Bunkyo Gakuin University.
International journal of sports physical therapy
|November 6, 2024
概括
投篮速度与胸脊旋转有关. 改善的部和肩部分离与更高的球速度相关,而有限的胸部旋转可能会减少它.
科学领域:
- 投球的生物力学.
- 运动医学运动医学
- 运动学 运动学
背景情况:
- 干旋转对于投球速度至关重要,并影响上肢关节负荷.
- 胸椎脊柱的有限旋转通常在器中观察到早期的干部旋转.
- 了解胸脊移动在投球力学中的作用,对于预防伤害和提高表现至关重要.
研究的目的:
- 为了研究胸脊旋转运动范围 (通过腰部锁定旋转测试 - LLR-t测量),部和肩部的分离 (H/S),步脚接触时的胸部旋转角度 (SFC) 和高中棒球投手的球速度之间的关系.
主要方法:
- 一项描述性实验室研究涉及15名健康的高中男棒球运动员.
- 胸脊旋转使用LLR-t用斜度计测量.
- 投篮运动分析软件 (Pitch AI) 捕获了SFC的部-肩部分离和胸部旋转.
- 使用特定于投球的追踪装置 (Pitching2.0) 记录了球速.
- 用皮尔森的相关系数来分析变量之间的关系.
主要成果:
- 在LLR-t角度和H/S之间发现了正相关性 (r=0.52,p=0.047).
- 在投侧LLR-t角度和SFC的胸部旋转角度之间存在负相关性 (r=-0.62,p=0.01).
- 球速与H/S正相关 (r=0.54,p=0.04) 和与SFC的胸部旋转角度负相关 (r=-0.56,p=0.03).
结论:
- 腰部锁定旋转测试 (LLR-t) 有效地测量胸部旋转,骨盆-腰部脊柱稳定.
- 用LLR-t测量的投侧胸部旋转与步脚接触和部肩部分离期间的胸部旋转有关.
- 这些发现表明,胸部移动性和正确的旋转顺序是影响投球速度的重要因素.
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