Intensidade de esforço entre distintas posições táticas durante partidas Oficiais de futebol profissional

Abstract

The purpose of this investigation was to quantify the match load within a soccer match among different players positions in male professional soccer. Twenty-four male elite soccer players (age: 24.1 ± 3.3 years; height: 172.1 ± 5.2 cm; body mass: 73.1 ± 4.4 kg; body fat: 12.3 ± 3.2%) from a club of the Brazilian first-division soccer league participated in this study. All soccer players included in the study participated in ten official matches for 91.4 ± 2.8 min. During ten official matches, the external load of all soccer players was monitored and quantified by means of portable global position system (GPS) devices operating at a sampling frequency of 10 Hz and incorporating a 100 Hz triaxial accelerometer. The two-way ANOVA yielded main effects for group in total distance (F 2,21 = 17.68, p = 0.0001), player load (F 2,21 = 31.19, p = 0.0001) and maximal speed (F 2,21 = 4.36, p = 0.02). In addition, Bonferroni post hoc (p < 0.05) showed significant differences in the total distance (p<0.001) and player load (p<0.001) among midfielders vs. forward and defenders. The results of this investigation confirm that midfielders soccer player shows greater total distance and player load in 60% of investigated matches. These results of this study provide information to coaches and physical trainers about specific variables during matches that should be observed during recovery to optimize resistance and power output.