投篮生物力学在上风和伸展投篮之间有区别吗?在大学棒球投手中,从脏地表面堆中的投篮交付?
Rafael F Escamilla1, Jonathan S Slowik2, Rodney Imamura3
1Department of Physical Therapy, California State University, Sacramento, Sacramento, CA, USA.
Journal of applied biomechanics
|February 21, 2026
概括
大学棒球投手在上风和拉伸投篮之间表现出明显的投篮生物力学. 伸展交付显示下肩部动力学,与上风交付相比,可能降低肩部受伤风险.
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:
- 投手生物力学对于棒球中的表现和伤害预防至关重要.
- 从泥土堆上进行的上风和拉伸交付之间的差异没有得到充分的证据.
研究的目的:
- 为了比较肩膀和肘部动力学以及上风和拉伸交付之间的投篮动力学.
- 为了使用泥土堆识别大学棒球投手的生物力学变异.
主要方法:
- 18名大学的投手从一座泥土堆上进行了上风和伸展的投篮.
- 一个12个摄像头的运动分析系统 (240赫兹) 捕获了动力学和动力学数据.
- 配对t测试分析了35个生物力学参数,以寻找显著差异.
主要成果:
- 风机交付显示,肩膀水平引扭矩,肩膀前部力,干/上干速度显著增加.
- 释放时的球速度和领先膝盖高度在上风传递中也更高.
- 骨盆漂移是唯一一个在伸展交付中显著增加的参数.
结论:
- 在上风和伸展投交付之间存在显著的生物力学差异.
- 伸展的交付可能会提供略低的肩膀伤害风险由于减少的肩膀动力学.
- 了解这些差异可以为投篮策略和伤害预防协议提供信息.
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