游戏中投球动力学与球速关系的描述和一致性
Kevin Giordano1, Adam R Nebel2, Benjamin Lerch2
1Department of Physical Therapy, LSUHSC New Orleans, New Orleans, USA.
International journal of sports medicine
|June 20, 2025
概括
在游戏中的棒球投球显示了投手臂动力学和球速度之间的不一致关系,与实验室研究不同. 这项研究为器提供了新的规范性动力学数据.
科学领域:
- 运动医学 运动医学
- 生物力学 生物力学
- 运动学 运动学
背景情况:
- 棒球投手经常经历肩膀和肘部受伤.
- 之前关于投球速度和上肢动力学的研究仅限于实验室环境.
- 无标记运动捕捉技术的进步使得棒球投球的游戏内生物机械分析成为可能.
研究的目的:
- 建立游戏内投球动力学的规范性数据.
- 在实际比赛中评估投球速度和肩膀/肘部动力学之间的关联.
主要方法:
- 对183名大学投手的游戏数据进行了回顾性分析.
- 利用多层模型来检查投球速度和运动关系.
- 采用类内相关系数来评估跨多个表现的投篮者内动力一致性.
主要成果:
- 投手手臂动力学和球速度之间的投手内关系在多次外出中并不一致.
- 包括随机斜率并没有显著降低坑内动力变异.
- 这些发现与之前的实验室研究不同,涉及到动力学和速度之间的内关系.
结论:
- 投球速度和游戏中投球手臂动力学之间的关系不如以前想象的那么一致.
- 这项研究为棒球投手提供了宝贵的规范性游戏内运动数据.
- 了解这些游戏中的生物力学对于伤害预防策略至关重要.
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