Aim. The aim of this study was to determine relationships between triple jump phases and velocity variables in Turkish athletes. Methods. The research group was composed of 38 Turkish male triple jumpers. The findings were obtained during the official competitions. All trials of the athletes were recorded by two camcorders. The photocells which are used to determine running times of athletes have been established 1m, 6m and 11m distance from the take-off board. Velocities for 11m-6m section (V1), 6m-1m section (V2), total 10m (V10) and difference between V2 and V1 (V2-V1) were calculated for each jump. The official jump distances were recorded. Best performance of the athletes were analysed by the two dimensional analysis software. The official distance, actual distance, distance lost at take-off, hop distance, step distance, jump distance, hop percentage, jump percentage and step percentage, step length and velocity variables, contact time variables were measured and calculated. General characteristics of the participants were presented as means and standard deviations (±SD). Pearson correlation coefficients (r) were used to express the relationships between parameters. Linear regression analysis was used to find coefficients of determination (r2) for the relationships. Results. It was found relationships between horizontal velocity variables and jumping distance. A strong correlation is between V10 and official distance (r=0.88, p<0.05, r2=0.78). It was established a linear regression model to explain this relation[Predictive distance=(1.822*V10)-1.952]. Furthermore the technical effectiveness score can calculated with the measured distance divided by predictive distance during the competition or technical training. Conclusion. This study has demonstrated that the approach velocity is highly related to jumping performance in triple jump. It can be suggested that the speed ability should be priority testing in talent identification in triple jump. In addition, the effectiveness score which is explained in this study can use by the athletic coaches to assess of their athletes' technical level.
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