兰德尔薄膜对划船推进周期的影响
Ricardo Cardoso1,2, Pedro Fonseca2, Márcio Goethel1,2
1Centre of Research, Education, Innovation and Intervention in Sport, Faculty of Sport, University of Porto, Porto, Portugal.
Sports biomechanics
|January 19, 2024
概括
添加兰德尔薄膜来划船大刀片可以增强划船期间的力量应用. 这些片对力-时间曲线有积极的影响,可能会提高整体划船性能.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 工程 工程师 工程师 工程师
背景情况:
- 划船性能受到划船设备的设计,特别是叶片的设计的重大影响.
- 兰德尔,一个子形的修改,最近已经引入了划船的顶端大刀片,以潜在地提高性能.
研究的目的:
- 分析划船之间与力相关变量的差异 带有和没有Randall薄膜的大刀片.
- 为了研究兰德尔薄膜在最大力度划船时对力时曲线的影响.
主要方法:
- 19名手参与了这项研究.
- 手们进行了两次90秒的最大力度绑定划船.
- 与力相关的变量,包括周期平均峰值力,推进周期平均时间和力发展速度,在带有和没有Randall薄膜的Big刀片之间进行测量和比较.
主要成果:
- 在使用Randall薄膜和不使用Randall薄膜的Big刀片之间观察到周期平均峰值力,推进周期平均时间和力量发展速度的显著差异.
- 具体来说,带有Randall薄膜的Big刀片与没有Randall薄膜的刀片相比,显示出不同的力量应用概况.
- 在划船努力的中期和最后阶段,周期平均峰值力的差异也被注意到.
结论:
- 数据表明,兰德尔片对划船中的力时曲线形状有积极的影响.
- 这些发现表明,使用兰德尔片可以提高划船性能,这可能有好处.
- 建议进行进一步的研究,以评估兰德尔薄膜对实际水上划船条件的影响.
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