Aim. The aim of this study was to evaluate the influence of effort parameters on the indicators of fitness tests according to the relation of the variables of training components in judo. Material and methods. Application of methods and basic directionality: repeated in series (adaptation), gradually repeated (optimum training state) and competitive (stereotypes). An experimental methodology of the specific training means was planned with 6 athletes monitored over 3 training mesocycles (MzC-s): basic, competitive 1 and competitive 2. The fitness tests checked the biological training (BT), physical training (PT), technical training (TT), technical and tactical training (T-TaT). The performances in two national competitions were also monitored. Parametric tests were conducted with a significance level of p ≤ 0.05. Results. The study results confirm the achievement of the training and performance objectives planned for each training MzC and the improvement of judokas' BT, PT (16.67 % in basic and competitive MzC 1 and 12.63 % - competitive MzC 2), TT (41.66 % in basic MzC), tactical training (25 % in basic MzC) and T-TaT (66.66 % - competitive MzC 1 and 87.37 % - competitive MzC 2). The results of the correlative analysis between the 12 studied indicators reveal 24 significant correlations out of 91 correlations in the basic MzC (26.37 %), 26 correlations out of 91 in the competitive MzC 1 (28,57 %), and 24 correlations out of 78 in the competitive MzC 2 (30.77 %). Conclusion. These results show that the effort parameters influenced the judokas' training improvement and the performance capacity increase.