Carga de esfuerzo percibida como predictor de rendimiento físico durante una pretemporada en fútbol juvenil.

Resumo

The aim of this study was to explore the relationship that could exist between acceleration ability and jumping capacity (CMJ) to perceived exertion load (GL) during a fiveweek preseason in a youth team. In this period, twenty male players (age: 17.3 ± 0.9 years) assessed their level of fatigue on a daily basis using an exertion scale. In addition, 10-m and 20- m sprint and CMJ were assessed before the start of the preseason and just before the first weekly training. The results showed that the oscillation in the physical performance variables is not easily predictable by means of a combined regression model of data, where the exertion was measured by GL. The global descriptive statistics and the correlations between variables revealed a low correlation between GL and 10 m (r = 0.23), between GL and 20 m (r = 0.21), and between GL and CMJ (r = 0.16). These findings allow us to broaden our understanding of internal and external demands during a soccer preseason and can also help coaches in the planning process. Finally, it also considers the need for other monitoring processes for the objective control of the training load.