Abstract

The aim of this study was to compare the physical and physiological demands of friendly matches (FM) with different types of standard training sessions (TRs) undertaken by professional soccer players. Maximal velocity (MV), relative distance (m/min), distance covered in different high velocity and acceleration-deceleration zones, player load, repeated high intensity efforts and Edwards’ TRIMP were assessed in 15 professional Spanish soccer players across the preseason period. Training sessions were classified under: tactical, pre-match activation, fitness-reserves and fitness sessions. Differences between FM and TRs, were analyzed for practical significance using magnitude-based inferences. MV and relative distance were substantially higher in FM than in tactical sessions (effect size, ES=1.69, large and 3.73, very large), activation sessions (ES=2.07, very large and 2.30, very large), fitness-reserves sessions (ES=2.85, very large and 4.47, very large) and fitness sessions (ES=2.30, very large and 6.30, very large) respectively. No substantial differences were observed in distance covered in high acceleration zone (>3 m·s^-2) between FM and activation, fitness-reserves and fitness sessions. TRIMPs obtained during FM were substantially higher than in tactical (ES= 5.37, very large), activation (ES=5.03, very large), fitness-reserves (ES=3.82, very large) and fitness sessions (ES=5.61, very large). It can be concluded from this study that FMs produce the highest loaded training stimulus when compared across most metrics used for training analysis comparisons across the preseason period. As a result the use of FMs within the pre-season phase of the season should warrant additional care when planned between high intensity and high volume training loads.

Resumen

El objetivo de esta investigación fue comparar las demandas físicas y fisiológicas de partidos amistosos (PA), con las derivadas de diferentes tipos de sesiones de entrenamiento (TRs) realizadas por futbolistas profesionales. 15 futbolistas profesionales españoles fueron monitorizados en pretemporada en las siguientes variables: velocidad máxima (VM), distancia relativa (m/min), distancia recorrida en diferentes zonas de velocidad y aceleración, secuencias de alta intensidad repetidas, player load y TRIMP Edwards. Las TRs fueron clasificadas en: tácticas, activación pre-partido, condición física de jugadores reservas y condición física. Se evaluaron las diferencias entre PA y TRs a través de inferencias basadas en magnitudes. La VM y la distancia relativa fueron substancialmente mayores en PA que en la sesiones tácticas (tamaño del efecto, TE=1.69, grande y 3.73, muy grande), sesiones activación (TE=2.07, muy grande y 2.30, muy grande), condición física-reservas (TE=2.85, muy grande y 4.47, muy grande) y condición física (TE=2.30, muy grande y 6.30, muy grande) respectivamente. No se observaron diferencias substanciales en la distancia recorrida a alta aceleración (>3 m·s^-2) entre PA y sesiones activación, condición física y condición física-reservas. Sin embargo, los TRIMPs obtenidos durante PA fueron substancialmente mayores que en las sesiones tácticas (TE=5.27, muy grande), activación (TE=5.03, muy grande), condición física-reservas (TE=3.82, muy grande), y condición física (CV=5.61, muy grande). Como conclusión, los PA constituyen el estímulo de entrenamiento con mayor sobrecarga de la pretemporada, para la mayoría de variables analizadas. Por lo tanto se debería prestar especial atención, cuando se juegan PA en pretemporada intercalados entre sesiones de alta intensidad y alto volumen.

https://doi.org/10.5232/ricyde2019.05803

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