Quantification of Perceived Effort in Elite Young footballers Throughout a Season
Objective. To analyse the differences between the mean internal load via perceived effort (IL PE) recorded by elite young players throughout a season. Methodology. Nineteen Sub-19 footballers belonging to a professional club participated in the study. The players were classified into regulars and reserves. The competitive period was divided into 2 periods, 5 blocks and 30 micro-cycles Results. The IL PE was significantly higher during period 2 (p < .01; ES = 0.35; low) than during period 1 among the regulars. Furthermore, the IL PE recorded in block 3 was significantly lower (p < .05; ES = 0.79; moderate) than in block 5 in the regulars. Finally, significant differences were found in the IL PE of the different types of micro-cycles in both regulars and reserves (p < .01; ES = 0.68-1.94; moderate-high). Conclusions. The results show that the IL PE remains relatively stable throughout the season in young footballers; however, weekly results may vary according to the type of micro-cycle, bearing in mind the location of the previous and subsequent matches.