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Purpose. the aim of the study was to determine the level of physical fitness, internal load, and recovery regarding 5 consecutive official professional soccer games and to correlate the physical fitness with the internal load and recovery variables. Methods. the total of 11 male professional soccer athletes performed an incremental treadmill test, which allowed to assess their physical fitness, and then participated in 5 official soccer matches held within 8.3 ± 3.7 days. After each match, the perceived recovery, perceived muscle soreness, creatine kinase concentration, and session rating of perceived exertion were registered. the effect of the 5 consecutive games was tested with the repeated measures ANOVA and the correlations were examined with the spearman coefficient. the significance level was set at p < 0.05. Results. the internal load and recovery variables were similar throughout the games (p > 0.05). significant correlations were found between internal load and physical fitness ( = 0.66) and between strain and recovery ( = –0.61). Conclusions. the results suggest that soccer athletes with better aerobic fitness weary more during the game and present higher strain in the season; however, they recover faster between games.

human movement

Quantification of match internal load and its relationship with physical fitness and recovery state of professional soccer athletes during the competitive period