在前爬行游泳中,飞的会增加手的推进力吗?
Kenta Homoto1,2, Tomohiro Gonjo3, Hideki Takagi1,2
1Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan.
Sports biomechanics
|November 11, 2024
概括
飞的脚显著提高了游泳速度和冲程长度,但不会影响前部爬行中的手推进. 这表明主要是提高整体性能,而不是直接产生手力.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 游泳表现表现 游泳表现表现
背景情况:
- 前部爬行是主要的游泳技巧.
- 了解不同的身体运动对推进的贡献,比如飞和手臂冲动,对于优化游泳表现至关重要.
- 之前的研究已经探讨了游泳生物力学的各种方面,但飞对手推进的具体影响需要进一步澄清.
研究的目的:
- 为了研究飞在前爬行冲动期间对推进力产生的影响.
- 为了比较全身条件 (包括飞) 和只用手臂条件之间的游泳性能参数.
主要方法:
- 八名男子游泳者在两个条件下完成了20米前爬行试验:全身状态 (带飞) 和手臂状态 (没有飞).
- 试验是在最大努力的70%,80%和90% (T100%) 进行的,以匹配中风频率.
- 用水下3D运动分析和手压测量来计算游泳速度,冲击频率,冲击长度,手速和手推进.
主要成果:
- 对于游泳速度和冲程长度,观察到一个重要的主要条件效应,在整体条件中,相比于手臂条件,游泳速度和冲程长度分别较高 (16.9-18.5%) 和较长 (17.3-19.5%).
- 在条件之间没有发现显著的相互作用 (整体与整体). 对于任何测量的变量,手臂) 和强度 (70-90% T100%).
- 重要的是,两种情况之间没有检测到手推力的差异,这表明飞的没有影响手推力.
结论:
- 飞的足显著提高了整体的游泳速度和前部爬行中的冲动长度.
- 尽管提高了整体性能指标,但飞脚并没有直接增加手产生的推进力.
- 这些发现表明,飞的击有助于游泳效率通过其他机制,而不是直接增强的手推进.
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