engleski

Plyometric training improves sprinting, jumping and throwing capacities of high level female volleyball players better than skill-based conditioning

There is an evident lack of studies on the effectiveness of plyometric- and skill-based- conditioning in volleyball. This study aimed to evaluate effects of 12-week plyometric- and volleyball-skill-based training on specific conditioning abilities in female volleyball players. The sample included 41 high-level female volleyball players (21.8 +/- 2.1 years of age ; 1.76 +/- 0.06 cm ; 60.8 +/- 7.0 kg), who participated in plyometric- (n = 21), or skill- based-conditioning-program (n = 20). Both programs were performed twice per week. Participants were tested on body-height, body- mass (BM), countermovement jump (CMJ), standing broad jump (SBJ), medicine ball throw, (MBT) and 20-m sprint (S20M). All tests were assessed at the study baseline (pre-) and at the end of the 12-week programs (post-testing). Two-way ANOVA for repeated measurements showed significant (p<0.05) "Group x Time" effects for all variables but body-height. Plyometric group significantly reduced body-mass (trivial effect size [ES] differences ; 1% average pre- to post- measurement changes), and improved their performance in S20M (moderate ES ; 8%), MBT (very large ES ; 25%), CMJ (large ES ; 27%), and SBJ (moderate ES ; 8%). Players involved in skill-based-conditioning significantly improved CMJ (large ES ; 18%), SBJ (small ES ; 3%), and MBT (large ES ; 9%). The changes which occurred between pre- and post-testing were more inter- correlated in plyometric-group. Although both training-modalities induced positive changes in jumping-and throwing-capacities, plyometric- training is found to be more effective than skill-based conditioning in improvement of conditioning capacities of female senior volleyball players. Future studies should evaluate differential program effects in less experienced and younger players.

Volleyball ; plyometric exercise ; small-sided games ; conditioning

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