Untitled

Abstract

The goal of this study was to show the influence of the lower limb dynamics on the efficiency of a racing dive and its impact on the swimmers' end results. We tested a group of 7 swimmers (5 men and 2 women, age = 19.6±2.1 years, height = 184.3±7.4 cm, weight = 73.3±11.7 kg). The test consisted of 3 vertical jumps on a diagnostic device FiTROJumper (VJ) (FiTRONiC, Bratislava, Slovak Republic), reaction time (RT) on a FiTRO agility check device (FiTRONiC, Bratislava, Slovak Republic), reaction on start block (RSB), vertical speed after the racing dive until reaching 9 metres (VS) and flight phase from the push off until the moment when the head enters the water (FP). To determine the importance of differences between the observed parameters (R-RSB; VJ-VS; VJ-FP), we used Kendall's tau coefficient (r, α = 0.05). The statistical analysis was realized by means of IBM® SPSS® Statistics V19 software. The average level was: VJ = 45.2 cm, RT = 514.9 ms, RSB (T) = 960 ms, RSB (G) = 830 ms and FP (T) = 316 cm, FP (G) = 330.9 cm. The statistical analysis proved a linear dependence between RT-RSB (T) (r = 0.81, p < 0.05), between RT-RSB (G) (r = 0.39, p < 0.05), between VJ-VS (r = 0.59-0.81, p < 0.05), between VJ-FP (T) (r = 0.10, p < 0.05) and between VJ-FP (G) (r = 0.78, p < 0.05).