精英自由泳中中风率-中风长度动态:应用核密度估计的应用
Craig A Staunton1, Jesús J Ruiz-Navarro2, Dennis-Peter Born3,4
1Department of Environmental and Bioscience, School of Business, Innovation and Sustainability, Halmstad University, Halmstad, Sweden.
Frontiers in sports and active living
|October 24, 2025
概括
精英游泳者根据比赛距离使用不同的冲击策略 (冲击率和冲击长度). 奖牌获得者优化技术和条件,以保持高的中风率,而不会牺牲中风长度,以达到最佳性能.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 游泳表现分析 游泳表现分析
背景情况:
- 了解精英游泳表现需要对冲动力学进行详细分析.
- 冲击速率 (SR) 和冲击长度 (SL) 是影响游泳速度的关键参数.
- 最佳的SR-SL组合在不同的比赛距离和个人游泳者之间可能会有所不同.
研究的目的:
- 分析精英自由泳运动员中冲击率 (SR) 和冲击长度 (SL) 的组合.
- 了解SR-SL策略如何在各种比赛距离 (50米至1500米) 上有所不同.
- 与其他竞争对手相比,确定奖牌获得者采用的生物力学策略.
主要方法:
- 基于视频的动态分析,对2019年欧洲短泳锦标赛324名精英游泳运动员进行了分析.
- 两个维的内核密度估计 (2D KDE) 以可视化SR-SL关系.
- 斯皮尔曼相关性用于量化冲动参数和速度之间的关系,按性别和比赛距离分层.
主要成果:
- 在短跑 (50米) 中,冲程长度 (SL) 与速度的相关性最强;冲程速率 (SR) 有微不足道的相关性.
- 随着比赛距离的增加,SR与速度的相关性加强,而SL的相关性减弱.
- 奖牌获得者经常表现出不同的SR-SL策略,短跑者偏爱高SR而不损害SL,远距离游泳者表现出更高SR和更低SL的趋势.
结论:
- 精英游泳者表现出复杂而个性化的冲动机制.
- 卓越的条件和技术使得奖牌获得者能够维持更高的中风率,而不会牺牲中风长度.
- 2D KDE提供了一种有效的方法来可视化和理解游泳中细微的生物力学策略,以获得教练的见解.
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