在投运动员肩部受伤后,动力链序列的改变
Liam P Owens1, Ginny Coyles1, Omid Khaiyat1
1School of Health and Sport Sciences, Liverpool Hope University, Liverpool, UK.
Orthopaedic journal of sports medicine
|November 18, 2024
概括
肩膀受伤或没有肩膀受伤的头部运动员表现出类似的动力链序列,只有肘部延伸和肩膀曲的时间有所不同. 这表明受伤可能不会改变投表现的基本序列.
科学领域:
- 生物力学 生物力学
- 运动医学 运动医学
- 整形外科 整形外科 整形外科
背景情况:
- 高效的动力链 (KC) 测序对于空投运动中的能量传输至关重要.
- 干扰KC序列可能导致肩部受伤,影响运动员的训练和表现.
- 了解KC测序差异对于预防和康复伤害至关重要.
研究的目的:
- 为了比较KC测序在最大抛头过程中的动力学差异,在肩部受伤和没有肩部受伤的运动员中.
- 为了确定运动员投中预防和康复肩部伤害至关重要的动力学参数.
主要方法:
- 收集了36名男性上空运动员 (18名有症状,18名无症状) 在最大投期间的3D运动分析数据 (100赫兹).
- 计算了关键身体部分 (肩膀,肘部,胸部,骨盆,部) 的峰值角速度和时间,以定义KC序列.
- 利用独立的t测试和皮尔森相关性来比较动力学数据并评估变量关系 (P < .05).
主要成果:
- 头部运动员,受伤或不受伤,表现出类似的KC序列,除了肘伸展和肩膀曲角速度的峰值.
- 无症状投手表现出同时的峰值速度 (0.17%在释放球前),而症状投手表现出连续的速度 (0.06%在释放球前和0.67%在释放球后).
- 尽管动力学变化,但没有观察到脚步长度或球速度的显著差异;有症状的投手表现出球速度和关节速度之间的相关性,与无症状投手不同.
结论:
- 头部运动员在下肢和腰腰部段保持类似的KC序列,在释放球附近的手臂动力学时间差异.
- 需要对投过程中的肌肉活动和技巧进行进一步的研究,以了解伤害如何影响KC测序.
- 这项研究提供了一个新的视角,表明肩膀受伤可能不会改变空投表现中的基本KC序列.
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