engleski

CAN EXPLOSIVE LEG STRENGTH OF VOLLEYBALL PLAYERS BE IMPROVED DURING COMPETITIVE SEASON?

The primary aim of this research was to determine the influence of programmed conditioning training on explosive leg strength of volleyball players during competitive season. Investigation included thirteen senior volleyball players, members of Croatian national league. Before and after the end of conditioning trainings examinees were tested on Kistler's platform on five tests: squat jump, counter movement jump, one leg high jump with left and right leg and repeat squat jump. Conditioning training program lasted for eighteen weeks, and during the period examinees were twice a week, besides the usual program, involved in special trainings. The special training included weight lifting and different jumps-variants of jumps from ankle, variants of bench jumps, and variants of one leg bench jumps. Results were analyzed by ANOVA and discriminative analysis. Results of discriminative analysis showed statistically significant changes in explosive strength tests before and after training period (F=8.71 ; p=0.00). On the other hand, ANOVA showed statistically significant results only on squat jump (F=6.85 ; p=0.02) and counter movement jump (F=9.86 ; p=0.01). Our results point to improved explosive strength after applied specific training program.

motor ability ; explosive strength tests ; conditioning training

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