在棒球投球过程中,有限的全弧膜旋转和肩膀生物力学
Tomohiro Ide1, Tyler J Hamer2, Adam B Rosen1
1School of Health and Kinesiology, University of Nebraska at Omaha.
Journal of athletic training
|March 6, 2024
概括
有限肩部运动范围 (ROM) 的棒球投手可能会经历过度伸展和增加受伤风险. 保持足够的全弧膜膜 ROM 对于预防伤害和优化投球表现至关重要.
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:
- 在棒球投手中,上肢受伤很常见,导致显著的错过比赛时间和降低生活质量.
- 肩部运动范围有限 (ROM) 是已知的危险因素,但其对投球生物力学和伤害发展的具体影响尚未完全理解.
研究的目的:
- 为了比较棒球投手之间的投篮动力学,动力学和球速,总弧度降低的棒球投手和那些有更大的ROM的棒球投手.
- 阐明与抛运动员肩膀运动能力有限相关的生物力学差异.
主要方法:
- 一项涉及57名棒球投手 (18-24岁) 的横截面研究,分为控制组 (≥160°总弧度ROM) 和较低的ROM (<160°总弧度ROM) 组.
- 在两组之间比较了膜部ROM缺陷,投球动力学和动力学结果以及球速.
主要成果:
- 与对照组相比,较低的ROM组在臂间的总弧度ROM中表现出明显更大的赤字.
- 虽然较低的ROM组在投球时显示出较少的最大肩部外部旋转 (ER),但对照组在投球ER和临床ER测量之间差异较小.
- 对照组的投手与较低的ROM组 (82.4英里/小时) 相比,实现了明显更高的球速 (85.0英里/小时).
结论:
- 投手总弧度下降的门门ROM可能有风险过度的肩膀过度伸展在晚期的曲阶段.
- 更高的总弧度ROM允许投手保持或增加球速,而不会增加上肢应力.
- 测量全弧膜膜 ROM 可以作为临床查工具来监测肩膀健康状况并识别受伤风险较高的投手.
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