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峰值下肢功率未调整为体质预测大学棒球投手的快球速度
Benjamin W King1,2, Teresa K Snow1, Mindy Millard-Stafford1
1Exercise Physiology Laboratory, School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia; and.
Journal of strength and conditioning research
|October 24, 2024
概括
峰值下肢功率,未根据体重调整,预测大学棒球投手的快球速度. 绝对输出功率比身体质量影响的变量更重要,用于预测投球速度.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 棒球表现分析 棒球表现分析
背景情况:
- 大学棒球投手下肢功率和快球速度之间的关系尚未完全理解.
- 了解这些生物力学因素可以为培训和绩效提升策略提供信息.
研究的目的:
- 评估下肢功率生产与大学棒球投手投球速度之间的关联.
- 要确定绝对或相对的下肢功率是否是更好地预测快球速度.
主要方法:
- 33名NCAA第一师棒球投手参与了这项研究.
- 使用反运动跳跃 (CMJ) 和Wingate无氧自行车测试来测量下肢功率.
- 使用TrackMan技术记录了快球速度,通过Pearson相关性和线性回归分析数据.
主要成果:
- 身体质量 (r = 0.58) 和瘦质量 (r = 0.52) 是快球速度的最强预测因素.
- 来自Wingate (r = 0.44) 和CMJ (r = 0.43) 测试的峰值功率 (W) 显著预测了速度.
- 调整为体重的下肢功率测量,例如相对于体重的CMJ功率 (r = 0.19),并没有显著预测速度.
结论:
- 在Wingate和CMJ测试中,通过峰值功率输出来测量的绝对下肢功率,是大学投手快球速度的重要预测因素.
- 身体质量是投球速度的主要决定因素,绝对输出功率比身体质量规范功率更相关,用于预测性能.
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