METHOD OF POST-ACTIVATION STIMULATION IN THE SPORTS TRAINING OF HIGHLY QUALIFIED

The purpose of the research: is to evaluate the strength exercises effect on the highly qualified ski jumpers’ technique and effectiveness through the post-activation stimulation method.

Methods and organization of the research. The main research method was a pedagogical experiment, in which 6 highly qualified ski jumpers from the Russian national team (4 Masters of sports, 1 Master of sports of International level and 1 Merited master of sports) took part. The experiment lasted 21 days (competitive period). The assessment of the impact of the three sets of strength exercises performed within the post-activation stimulation method was carried by the method of control tests (trial jump from the K-90 ski jump), as well as by the expert evaluation method (jump technique assessment). To process the obtained data and their characteristics, we used descriptive statistics indicators (median values (Me) and dynamic statistics indicators (growth rate Tg, %), and to check the reliability of the changes occurred, we used the Wilcoxon rank sum test.

Research results and their discussion. Strength exercises performed within the post-activation stimulation method were grouped into three sets aimed at: correcting technique errors, increasing the muscle contraction power and improving the biodynamic movements. The jump distance and its overall effectiveness are most affected by strength exercises aimed at increasing the muscle contraction power and improving the biodynamic movements.
The jumping technique is more influenced by strength exercises aimed at correcting technical errors and improving the biodynamic movements.

Conclusion. Depending on the combination of the kinematic specifics of strength exercises, the muscle work mode, the magnitude of external resistance and the strength and technical exercises distribution within one session, day or adjacent days, the post-activation stimulation method provides a selective effect on the technique, range and effectiveness of ski jumps.

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