Quantification of physical and psychological loads: differences in competitive levels and the effects on match results

Abstract

This study analyses the response of professional soccer players of different competitive levels to competition and training stimuli, together with the latter’s relationship with performance during matches. A total of 20 Elite players (Premier League) and 22 Sub-elite players (Championship Division) took part in the study. The training load for each player was monitored by measuring the % maximum heart rate (% HRmax), training time at different intensities, rate of perceived exertion (RPE) and competition load through the ProZone® multi-camera tracking system during the second round of the league for both teams. The RPE, % HRmax, training distance and distance covered during the official match were significantly lower (p < .05) in the case of the Elite players. The RPE - a valid method of estimating the players’ physical and psychological load – was significantly correlated (p < .05) with the recorded physical performance during training and competition. The total distance covered during the competition was significantly higher (p < .05) for both teams when they won their matches. The results of this study suggest that world-class soccer players have a lower training and competition load, relying more on their technical and tactical skills.