Vol. 11, No 2, 2013 pp. 157 - 164
UDC 796.325-055.25
Original research article
A COMPARISON OF THE JUMPING PERFORMANCE OF FEMALE JUNIOR VOLLEYBALL PLAYERS IN TERMS OF THEIR PLAYING POSITIONS
Dragan Nejić1, Nebojša Trajković1, Ratko Stanković1, Zoran Milanović1, Goran Sporiš2
1University of Niš, Faculty of Sport and Physical Education, Niš, Serbia
2University of Zagreb, Faculty of Kinesiology, Zagreb, Croatia
Abstract. The aim of this study was to examine the positional differences in jumping performance of female junior volleyball players. Fifty-six female volleyball players (n=56, average age=16.28±1.32) participated in this study. The players were categorized as middle blockers (n = 13), opposite hitters (n = 16), outside hitters (n = 15) and setters (n = 12). The participants performed the Countermovement Jump (CMJ) and Squat jump (SJ) tests using the Myotest and Attack and Block jump tests. The results on the vertical jump tests (CMJ and SJ) show similar values for all the positions in the team and no significant difference (p≥0.05). The same results were determined for the Attack and Block jump tests. The results of this study indicate that there were no significant differences among female junior volleyball players of different playing positions for jumping performance. It cannot be concluded that volleyball players develop distinctive performance characteristics at this age and level.
Key words:  Countermovement jump, Squat jump, Attack jump test, Block jump test, differences
POZICIONE RAZLIKE U SKOČNOSTI KOD ODBOJKAŠICA JUNIORSKOG UZRASTA
Cilj ovog rada je da se ispitaju razlike u skočnosti između pozicija kod odbojkašica juniorskog uzrasta. U istraživanju je učestvovalo 56 odbojkašica (n=56, prosečna starost=16.28±1.32). Igrači su podeljeni na pozicije srednjeg blokera (n = 13), primača servisa (n = 15), korektora (n = 16) i dizača (n = 12). Ispitanici su izvršili testove skočnosti (skok sa počučnjem i skok iz polučučnja) koristeći Myotest i testove skokova za smeč i blok. Rezultati u testovima vertikalnog skoka (CMJ i SJ) pokazuju slične vrednosti za sve pozicije u timu i bez značajne razlike (p ≥ 0,05). Isti rezultati su za testove skok za smeč i blok. Rezultati ovog istraživanja pokazuju da nema značajne razlike u skočnosti između pozicija kod juniorskih odbojkašica. Ne može se zaključiti da odbojkašice razvijaju distinktivne karakteristike uspešnosti u ovom uzrastu i na ovom nivou.
Ključne reči: skok sa počučnjem, skok iz polučučnja, testovi skok za smeč i blok, razlike