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在游戏中的无标记和基于实验室标记的棒球投球生物力学的变性

Benjamin G Lerch¹, Glenn S Fleisig², Jonathan S Slowik²

¹Sports Medicine and Movement Lab, Auburn University, 301 Wire Rd, Auburn, AL 36849, United States.

Journal of biomechanics

|May 26, 2025

概括

棒球投球生物力学显示在游戏中的无标记和基于实验室标记的运动捕捉之间存在类似的变化. 这项研究比较了两种环境中的投球动力学,发现尽管环境不同,但变化率差异很小.

科学领域:

体育生物力学运动生物力学
运动捕捉技术的技术.
棒球表现分析棒球表现分析

背景情况:

传统的棒球投球生物力学分析是在受控的实验室环境中进行的.
无标记运动捕捉技术的进步使游戏中的生物机械分析成为可能.
在实验室和游戏环境中,投球速度有所不同,这引发了关于生物力学一致性的问题.

研究的目的:

为了比较基于标记的实验室数据和没有标记的游戏数据之间的投球生物力学变异性.
为了调查投篮动力学及其变异性是否在受控与竞争环境之间有所不同.

主要方法:

在生物力学实验室 (基于标记器) 中,比较了30名大学棒球投手的数据.
在比赛期间比较了30名NCAA第一师投手的数据 (无标记运动捕捉).
定义为主体内投球变异性,即10个快球中的动力学标准偏差.

主要成果:

在无标记和基于标记的数据之间观察到平均值的显著差异.
在没有标记的游戏数据中,肩膀外侧旋转和肘部曲的投球变化明显更大.
总的来说,发现两种设置之间的投球变异性相对相似.

结论:

游戏中的无标记运动捕捉提供了与传统实验室方法相比较的投篮变化数据.
最初的证据表明,棒球投球生物力学变化在游戏和实验室环境中是一致的.
这项研究支持无标记运动捕捉的有效性,用于分析游戏中的投球生物力学.

关键词:

一致性一致性一致性环境环境环境环境动力学是动力学.业绩表现业绩表现业绩表现

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