在主题内,对外部训练负载和青少年足球训练强度指标的主要组成部分分析
Jakub Marynowicz1,2, Mateusz Lango3, Damian Horna3
1Department of Theory and Methodology of Team Sport Games, Poznan University of Physical Education, Poznań, Poland.
Journal of strength and conditioning research
|November 28, 2023
概括
这项研究分析了青年足球训练负载和强度指标. 主要组件分析显示,总距离,PlayerLoad,加速和session-RPE捕获了大多数外部负载信息,高速运行提供了独特的见解.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 运动生理学 运动生理学
背景情况:
- 了解外部训练负载 (EL) 和强度 (EI) 对于优化青少年足球表现和预防受伤至关重要.
- 为了量化EL和EI,存在各种指标,但它们的信息冗余性尚未完全理解.
研究的目的:
- 确定青年足球训练期间外部训练负载 (EL) 和外部强度 (EI) 指标的组合捕获了类似或独特的信息.
- 确定最有信息的指标,以全面了解年轻运动员的训练负载.
主要方法:
- 主要组件分析 (PCA) 应用于18名青少年足球运动员在18周的赛季期间的数据.
- 收集的数据包括全球定位系统 (GPS) 的指标 (总距离,高速运行距离,加速度),PlayerLoad (PL) 和session-RPE (sRPE).
- 外部强度指标是通过将EL除以会话持续时间来得出的.
主要成果:
- 第一个主要组成部分 (PC) 解释了EI (49-70%) 和EL (68-89%) 差异的很大一部分.
- 对于EI,每分钟的总距离或每分钟的PlayerLoad捕获了大多数信息 (负载为0.76-0.98).
- 对于EL,PlayerLoad,总距离,加速或sRPE解释了大部分变异 (负载0.70-0.99),而高速运行距离在第二个PC中提供了独特的信息 (负载0.53-0.84).
结论:
- 大多数来自EL变量的信息可以被捕捉到单个主要组件中,这表明常见指标之间存在显著的冗余性.
- 为了获得全面的日常训练概述,建议教练报告总距离,玩家负载,加速或sRPE,以及高速跑距离.
- 这种方法为训练负载提供了一个平衡的观点,包括一般负载和特定高强度的努力.
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