University of Porto, Faculty of Sport, Centre of Research, Education, Innovation and Intervention in Sport, Porto, Portugal.
Int J Sports Med. 2012 Apr;33(4):297-304. doi: 10.1055/s-0031-1297952. Epub 2012 Jan 30.
An accurate evaluation of training load is paramount for the planning and periodization of training. The aim of the present study was to evaluate the relationship between a new method to monitor training load in soccer (Visual Analogic Scale training load; VAS-TL), and two established heart rate-based methods (TRIMP and Edwards' method). 51 soccer players (age 15.6±0.3 years) answered 2 questions to assess perceived exertion and fatigue (VAS1-TL, and VAS2-TL) after training sessions and official matches. Performance in the Yo-Yo tests, VAS scores and heart rate of training sessions and matches, and match activity were analysed. We found significant correlations (r=0.60-0.72; p<0.05) between VAS-TL, TRIMP, and the Edwards' training load method, with the highest correlations achieved in the matches. Although the different methods to monitor training load were correlated with the distance covered during the match (r=0.53-0.78; p<0.05), only VAS1-TL was associated with high-intensity activities (r=0.43-0.54; p<0.05). The new VAS-based perceived exertion method to monitor training load is easy to apply and is sensitive to differences in positional role and physical capacity. Thus, the applied method may be used in addition to the usual training load methods, allowing for daily quantification of individual training load in soccer.
准确评估训练负荷对于训练计划和周期化至关重要。本研究的目的是评估一种新的足球训练负荷监测方法（视觉模拟量表训练负荷；VAS-TL）与两种已建立的基于心率的方法（TRIMP 和爱德华兹法）之间的关系。51 名足球运动员（年龄 15.6±0.3 岁）在训练课后和正式比赛后回答了 2 个问题来评估感知的努力和疲劳（VAS1-TL 和 VAS2-TL）。分析了 Yo-Yo 测试、VAS 评分和训练课及比赛时的心率、比赛活动。我们发现 VAS-TL、TRIMP 和爱德华兹训练负荷方法之间存在显著相关性（r=0.60-0.72；p<0.05），在比赛中相关性最高。尽管监测训练负荷的不同方法与比赛中覆盖的距离相关（r=0.53-0.78；p<0.05），但只有 VAS1-TL 与高强度活动相关（r=0.43-0.54；p<0.05）。用于监测训练负荷的新基于 VAS 的感知努力方法易于应用，并且对位置角色和体能的差异敏感。因此，该应用方法可与常用的训练负荷方法一起使用，允许在足球中每天量化个体训练负荷。
