engleski

Effects of off-season sand training on physical performance in adolescent indoor volleyball players

The aim of the present study was to assess the effects of sand off-season training program on physical performance in adolescent indoor volleyball players. Nineteen adolescent male volleyball athletes (16±2 years) consented to participate in program and lower-body power and agility testing. The participants performed the SJ, CMJ, Attack, Block jump tests and Standing Broad jump test for lower-body power and Sprint 9-3-6-3-9 m and T Test for agility. One cycle of eight weeks was analyzed in off-season (2014). Players were involved in specialized program on sand and exercise were selected based on previous experience and according to performance analysis in volleyball studies. There were no significant differences (p >0.05) between pretraining and posttraining for Block jump (p=0.612) and Spike jump (p=0.525). However, there was a significant (p ≤ 0.05) improvement in SJ, CMJ and standing broad jump. Results for agility tests showed there were no significant differences between groups pre- to post-training (p > 0.05). The results of this study indicate that there were significant improvements in jumping performance. However, there was no significant improvement in the 9-3-6-3-9 agility test and T test. According to our results and previous research, clear conclusion about the effects of training in sand could not be given. However, this kind of study could provide practical application for coaches and sport researchers.

volleyball; impact; sand; jumping ability; running

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