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对预测跳跃服务效率的动力学变量的分析在排球运动员中的有效性
Mohd Arshad Bari1, Ali Azeez Aneed Al Mijbilee1, Shibili Nuhmani2
1Department of Physical Education, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
Medicine
|August 6, 2023
概括
这项研究揭示了排球跳跃服务在各年龄段的关键动力学差异. 接近速度和肩延伸角度显著影响球速,对于性能优化至关重要.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 运动学 运动学
背景情况:
- 排球表现与跳跃服务的动力学密切相关.
- 了解这些运动参数在不同玩家发展阶段对于有针对性的训练至关重要.
- 之前的研究还没有全面比较这些变量在不同的初级和大学男排分类.
研究的目的:
- 为了比较不同功能类别 (U-23,U-21,U-19男性球员) 中排球跳跃的运动参数.
- 建立基于动力学变量的多线性回归模型,预测跳跃服务性能 (球速度).
- 为了确定跳跃的关键动力学决定因素,为每个年龄类别提供速度.
主要方法:
- 相关观察性研究涉及30名男性大学排球运动员,跨越三个年龄组.
- 同步的摄像系统被用来获取跳跃服务的数据.
- 教练-pro 8运动分析软件,ANOVA和多重线性回归 (P < .05) 用于数据分析.
主要成果:
- 在所有三个年龄组 (U-23,U-21,U-19) 中观察到动力学变量的显著平均差异.
- 多线性回归模型显示了球速的高预测能力:R平方值在0.89到1.00之间.
- 关键预测因组而异:U-23 (接近速度,肩延伸,CG高度),U-21 (CG高度,肩延伸),U-19 (接近速度).
结论:
- 跳跃服务在不同年龄类别中表现出类似的生物力学特征,但关键的动力学决定因素不同.
- 接近速度是U-19和U-23球员的关键因素,而肩延伸和重心高度对所有组都很重要.
- 这些发现为开发特定运动训练计划提供了基础,以提高男排球员的跳跃服务表现.
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