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相关概念视频

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The concept of work involves force and displacement; meanwhile, the work-energy theorem relates the net work done on a body to the difference in its kinetic energy, calculated between two points on its trajectory. While none of these quantities or relations involves time explicitly, we know that the time available to accomplish work is often just as important as the amount of work itself. For example, sprinters in a race may have achieved the same velocity at the finish, therefore,...
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Average Power01:13

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In practical electrical applications, the concept of time-varying instantaneous power is not frequently utilized. Instead, focus shifts to the more practical quantity known as average power. Average power is determined by integrating the instantaneous power over a specified time period and subsequently dividing it by that duration.
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相关实验视频

Updated: Jul 23, 2025

Experimental Protocol of a Three-minute, All-out Arm Crank Exercise Test in Spinal-cord Injured and Able-bodied Individuals
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赛道骑自行车冲刺使用功率数据的性别差异.

Hamish Ferguson1, Chris Harnish2, Sebastian Klich3

  • 1Centre for Bioengineering, Department of Mechanical Engineering, University of Canterbury, Christchurch, New Zealand.

PeerJ
|July 17, 2023
PubMed
概括
此摘要是机器生成的。

女和男赛道冲刺骑自行车运动员表现出类似的功率配置文件和峰值和耐力功率之间的关系. 然而,女性表现出更大的运动员之间的变化,这表明需要个性化的训练策略.

关键词:
女运动员的运动员.体育表现体育表现体育表现冲刺骑自行车的比赛

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科学领域:

  • 运动科学 运动科学 运动科学
  • 运动生理学 运动生理学
  • 骑自行车的性能分析

背景情况:

  • 关于赛道冲刺骑自行车功率配置的性别差异的数据有限.
  • 了解这些差异对于优化男女运动员的训练和表现至关重要.

研究的目的:

  • 分析女性和男性赛道冲刺骑自行车运动员的回顾性数据,以确定功率配置文件中的性别差异.
  • 假设女性与男性相比,峰值功率与体重的关系较低,功率持续时间分布不同.

主要方法:

  • 利用来自公共在线存储库的29名赛道冲刺骑自行车运动员 (8名女性,21名男性) 的训练,测试和比赛数据.
  • 创建了特定性别的功率配置文件,并使用R平方 (R2) 分析了模型质量.
  • 通过使用回归指数,在不同持续时间的性别之间比较每公斤瓦特 (W/kg).

主要成果:

  • 确认样本由具有高峰和竞争能力的冲刺骑自行车运动员组成.
  • 所有功率配置文件都显示出高模型质量 (R2 ≥0.77).
  • 在所有持续时间内,两性回归指数相似,表明与初步假设相反的峰值功率和峰值和耐力功率之间的关系是可比的.

结论:

  • 女性和男性赛道短跑者在峰值功率和耐力功率之间表现出类似的关系.
  • 在女性骑自行车运动员中观察到W/kg的运动员间变异性更大,这表明需要个性化的训练方法.
  • 建议在未来对更大,更多样化的样本进行研究,以完善培训建议.