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Purpose: to determine changes in indicators of speed-strength abilities of volleyball players under the influence of a set of exercises according to the Tabata protocol. Material & Method: 10 volleyball players of the male student team "KhSAPC", aged 17-21, took part in the pedagogical experiment, they have the first category in volleyball. The experiment lasted 2 months and consisted in using the Tabata protocol in the educational and training process of volleyball players. In the dynamics of the experiment, the speed-strength abilities of a selected group of volleyball players were tested. The assessment of the statistical reliability of the results of a comparative analysis of the indicators studied in this work was carried out using a nonparametric sign test. Results: at the beginning of the pedagogical experiment, volleyball players had the following test results: push-ups for 20 s 17,30±0,45 times; standing long jump with push of two legs 229,20±2,98 cm; lifting the torso from the prone position in 30 s 30,40±1,37 times; throwing a stuffed ball weighing 1 kg from behind the head with two hands in a jump of 11,20 ± 0,93 m; jump up from a place (according to V. M. Abalakov) 49,60±2,51 cm. After the pedagogical experiment, the values of indicators of the speed-strength abilities of volleyball players for each of the five tests turned out to be significantly higher compared to the results of the corresponding tests obtained before the start of the experiment. Conclusions: the proposed sets of exercises according to the Tabata protocol turned out to be effective, as they made it possible to significantly improve (p˃0.01) the speed-strength abilities of volleyball players in all tests. The results obtained allow us to recommend the use of exercise complexes according to the Tabata protocol for the training activity of volleyball players.

Purpose: to study the dynamics of changes in coordination abilities of qualified female volleyball players under the influence of using a set of exercises and outdoor games. Material and methods: the following research methods were used in the research: analysis of scientific and methodological literature; pedagogical experiment; pedagogical testing; methods of mathematical statistics. During the research, the pedagogical experiment was conducted and aimed at increasing the level of coordination abilities of qualified female volleyball players. A group of 10 qualified female volleyball players at the age of 18-21 years of the team “Kharkivyanka” (Kharkiv) was chosen for its holding, who takes part in competitions of teams of the Major League of Ukraine. Such means as a set of special exercises and outdoor were proposed for the development of coordination abilities, and appropriate tests were used to evaluate them. Results: the analysis of the results of the pedagogical experiment showed that the average arithmetic values of the indicators for each of the four selected tests after the experiment were significantly higher compared to the results of the corresponding tests obtained before the experiment. The results of the corresponding comparative analysis using the Student’s test proved the validity of the difference between values of the indicators of these tests. Conclusions: the proposed means to increase the level of coordination abilities of female volleyball players justified themselves as effective. They can be used by team coaches in practical work to prepare players for a defensive role, which will contribute to improving the team’s game performance in training and competitive activities.

Purpose: to determine changes in indicators of speed-strength abilities of volleyball players under the influence of a set of exercises according to the Tabata protocol. Material & Method: 10 volleyball players of the male student team “KhSAPC”, aged 17-21, took part in the pedagogical experiment, they have the first category in volleyball. The experiment lasted 2 months and consisted in using the Tabata protocol in the educational and training process of volleyball players. In the dynamics of the experiment, the speed-strength abilities of a selected group of volleyball players were tested. The assessment of the statistical reliability of the results of a comparative analysis of the indicators studied in this work was carried out using a nonparametric sign test. Results: at the beginning of the pedagogical experiment, volleyball players had the following test results: push-ups for 20 s 17,30±0,45 times; standing long jump with push of two legs 229,20±2,98 cm; lifting the torso from the prone position in 30 s 30,40±1,37 times; throwing a stuffed ball weighing 1 kg from behind the head with two hands in a jump of 11,20 ± 0,93 m; jump up from a place (according to V. M. Abalakov) 49,60±2,51 cm. After the pedagogical experiment, the values of indicators of the speed-strength abilities of volleyball players for each of the five tests turned out to be significantly higher compared to the results of the corresponding tests obtained before the start of the experiment. Conclusions: the proposed sets of exercises according to the Tabata protocol turned out to be effective, as they made it possible to significantly improve (p˃0.01) the speed-strength abilities of volleyball players in all tests. The results obtained allow us to recommend the use of exercise complexes according to the Tabata protocol for the training activity of volleyball players. [ABSTRACT FROM AUTHOR]

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