在北美精英足球运动员中,训练量和高速负载在微周期内有所不同
Ai Ishida1, Garrison Draper2,3, Matthew Wright3
1Exercise and Sport Sciences Laboratory, East Tennessee State University, Johnson City, Tennessee.
Journal of strength and conditioning research
|October 26, 2023
概括
北美精英足球运动员在他们的微循环中表现出不同的训练负载. 高速负载和体积指标差异很大,特别是平均冲刺距离和比赛日之前的总距离.
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
- 生物力学 生物力学
背景情况:
- 了解训练负载的变化对于优化表现和预防精英运动员受伤至关重要.
- 以前的研究集中在整体训练负载上,但微循环变化需要进一步调查.
研究的目的:
- 使用主要组件分析 (PCA) 来减少外部培训负载变量的维度.
- 为了检查选定的训练负载变量 (高速负载和体积) 在北美精英足球运动员的微循环中如何变化.
主要方法:
- 在2018-2020赛季期间,从18名北美精英足球运动员收集了数据.
- 微周期被定义为相对于比赛日 (MD-1到MD-5) 的几天.
- 训练负载变量包括总距离,高速跑距离 (HSR),冲刺距离和PlayerLoad;PCA用于减小维度.
主要成果:
- 第一个主要组成部分,代表"高速负载" (HSR和冲刺变量),解释了66.0%的差异.
- 代表"体积" (总距离和玩家负载) 的第二个主要组成部分解释了17.9%的差异.
- 与MD-2和MD-4相比,MD-3的平均冲刺距离在MD-3显著更高. 与MD-1和MD-2相比,MD-3的总距离明显高于MD-1.
结论:
- PCA可以简化外部培训负载的报告,建议从业者专注于"体积"和"高速负载"变量.
- 北美精英足球运动员表现出一种独特的模式,在MD-3上积累了更高的平均冲刺距离.
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