Abstract

The examined group consisted of 6 judo competitors aged from 20 to 26. The present study elaborates on the purpose of broadening the endurance evaluation protocol of a Judoka, based on the Special Judo Fitness Test by means of using a second cardiac stress test. Furthermore, the adequacy of implementing this solution into the endurance diagnosis of a special group of outstanding Polish judo competitors preparing for the Olympic Games in 2008 was evaluated. Studies showed the fitness of using a double SJFT in diagnosing the special endurance of judo competitors. The introduced modification allowed an additional evaluation to assess the ability to perform a repeated exertion needed during competition fights. The difference between oxygen consumption levels while executing the first and second run (with comparable amounts of work involved) may provide a source of information concerning changes in the dominating energy source in case of growing fatigue. The analysis of parameters characterizing anaerobic efficiency during the SJFT answers the question about the significance of activating the anaerobic metabolism during a specific exertion in comparison to the maximal abilities of a judo competitor. In the first test sequence – a 15-second exertion – the VO2 for the group accounted for a mean 25.9 ml/kg/min. The considerable range between 16.9 and 35.1 ml/kg/min indicates major interpersonal differences between the competitors. During the next exertion sequence (a 30-second exertion), an increase in VO2 to the level of 48.5 ml/kg/min with a range between 39.7 and 53.7 ml/kg/min occurred. In the last 30-second exertion period the VO2 increased to 52.8 ml/kg/min with a range between 45.1 and 57.7 ml/kg/min. Thus the anaerobic metabolism was observed to take over a greater proportion of the source of energy during exertion. During the second exertion period of the SJFT the values were similar in characteristics as to the first period, however the values were lower than in the first period. Further studies should concentrate on seeking a special training load, which would allow a full diagnosis of the anaerobic endurance. The used test aims at the complex diagnosis of special endurance. Preparing a program for using a special control exercise allowing an evaluation of this area of preparations will considerably broaden the range of control over the training process in every preparation phase for the most important event in the season. Verf.-Referat