The primary aim of this study was to determine the relationship between certain aspects of coordination, the time course of a bout and sport-related skill levels in cadet judoists. The study evaluated eight judokas with high sport skill levels. Based on the analysis of tournament matches (N=66), the authors determined the activity, effectiveness of actions and the level of achievement. Ten aspects of coordination were assessed by 28 indices. It was found that a high level of adaptive ability was a prerequisite for high levels of activity during the phase I of a bout. Shorter durations of complex reaction time were correlated with higher effectiveness in both the phase I and throughout a bout. High level of visual-motor coordination was correlated with high effectiveness and its increase during the phase II of a bout. Certain aspects of coordination seem to be necessary components of the technical and tactical coaching of cadets. However, they do not correlate directly with the level of achievement.
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