动态调整亚最大力度的努力足球侧脚脚
Hiroyuki Nunome1, Koichiro Inoue2, Kohei Watanabe3
1Faculty of Sports and Health Science, Fukuoka University, Fukuoka, Japan.
Sports biomechanics
|June 26, 2023
概括
足球运动员通过调整腿部运动来控制的强度. 部和膝关节的关节时刻,以及大腿腿平面运动,是调节动力学以获得最佳球速的关键.
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:
- 了解足球的生物力学原理对于提高表现至关重要.
- 之前的研究主要集中在最大力度的球上,对次最大力度的球的关注较少.
研究的目的:
- 为了分析脚在亚最大努力足球侧脚中脚的动态.
- 研究如何调节关节动力学和动力学以控制不同力度的球速.
主要方法:
- 八名男性大学足球运动员以50%,75%和100%的最大力度进行了侧脚.
- 高速运动捕捉 (500 Hz) 记录了腿动态,并测量了球的初始速度.
- 分析的重点是关节时刻,角冲动和细分运动在大腿平面内外.
主要成果:
- 观察到部曲和膝盖伸展时刻的系统调节,支持一个顺序细分控制模型.
- 部外部旋转时刻被调整,表明主要平面之外的运动控制.
- 在最大的努力下,膝盖延伸速度的贡献增加,而部外部旋转的贡献减少,与更直的方法运行相关联.
- 亚最大球显示出较小的球/脚速度比,这表明操纵了撞击时脚关节的固定.
结论:
- 足球的强度是通过在大腿平面内外的协调运动来调节的.
- 脚关节的固定在次最大中起着重要作用,影响球速控制.
- 这些发现为球员和教练提供了宝贵的见解,以优化侧脚技巧.
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