Vol. 11, No 1, 2013 pp. 1 - 8
UDC 796.012    796.422
Original research article
THE BIODYNAMIC ANALYSIS OF DROP JUMPS IN FEMALE ELITE ATHLETES
Milan Čoh1, Dragana Berić2, Milovan Bratić2
1University of Ljubljana, Faculty of Sport, Ljubljana, Slovenia
2University of Niš, Faculty of Sport and Physical Education Niš, Niš, Serbia
Abstract. The purpose of the study was a biodynamic analysis of kinematic and dynamic parameters in two types of drop jumps (from a height of 25 cm and 45 cm). The sample of measured participants included four female elite triple jump athletes with their best results varying from 13.33 to 15.03 meters. Kinematic and dynamic parameters were calculated with the use of a bipedal tensiometric force plate, which was synchronized with nine CCD cameras. In the drop jump from a height of 25 cm, the measured participants achieved the following results: height of the jump 43.37 ± 5.39 cm and surface reaction force 2770 ± 411 N. In comparison, the results in the drop jump from a height of 45 cm were: height of the jump 45.22 ± 4.65 cm and surface reaction force 2947 ± 366 N. The vertical velocity of the take-off in the 25 cm drop jump was 2.77 ± 0.19 ms-1 and in the 45 cm drop jump 2.86 ± 0.15 ms-1.
Key words:  track and field, biomechanics, drop jumps, diagnostics
BIODINAMIČKA ANALIZA SKOKA IZ NASKOKA VRHUNSKIH SPORTISTKINJA
Cilj ovog istraživanja bio je da pruži biodinamičku analizu kinematičkih i dinamičkih parametara na primeru dve vrste skoka iz naskoka (sa visine 25 cm i 45 cm). Uzorak ispitanika sastojao se od četiri vrhunske skakačice troskoka čiji su najbolji rezultati u rasponu od 13.33 do 15.03 metara. Kinematički i dinamički parametri su izračunati upotrebom tenziometrijskog aparata, čiji rad je sinhronizovan sa radom devet CCD Kamera. U skoku iz naskoka sa visine od 25 cm, ispitanici su postigli sledeće rezultate: visina skoka 43.37 ± 5.39 cm i jačina odraza 2770 ± 411 N. U poređenju sa tim, rezultati postignuti u skoku sa visine od 45 cm bili su: visina skoka 45.22 ± 4.65 cm i odraz od poda 2947 ± 366 N. Vertikalno ubrzanje pri odrazu kod skoka sa visine od 25 cm bilo je 2.77 ± 0.19 ms-1 a sa 45 cm 2.86 ± 0.15 ms-1.
Ključne reči: atletske discipline, biomehanika, skok sa naskoka, dijagnostika