Introduction The purpose of this study was to compare the characteristics of the strength, power and the explosive resistance in male judokas medallists and non medallists. Twenty two men judokas from the Portuguese and Tunisian teams (mean and sd body mass, Medallists=76,3 (0,03) and Non Medallists= 71,1 (9,1); age, M=22,8 (1,6) and N/M=21,7 (2,4); fat, 8,98 (2,2) and 9,8 (3,1) were evaluated. Methods The power-load relationship of the arm extensor muscles were tested in a bench-press position using progressive relative loads till 100% 1RM was achieved. For the Resistance Explosive Strength of the arms we used the load of the power (Watts) and finished when the athletes performed 20%. During the upper extremity test actions, bar displacement, average velocity (metres per second) and mean power (watts) were recorded by linking a rotary encoder to the end part of the bar. The rotary encoder recorded the position and direction of the bar with an accuracy of 0.0002 m. Customized software (JLML I+D 3.6, Madrid, Spain) was used to calculate the output of each repetition of the bench press performed throughout the whole range motion. The COPTEST(a) a competitive simulation test was used to evaluate the blood lactate concentrations, remove, recovery and evaluate the Explosive Strength resistance loading.
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