The relationship among horizontal-vertical force while performing different sprint distances, jumping and isokinetic strength criteria

The purpose of this study was to investigated the relationship among horizontal-vertical force performed in different sprint distances, jumping and isokinetic strength criteria. Voluntary 19 athletes (11men and 8women), who perform explosive strength, were participated to the study [age (year) 20.9±2.3, training age (month) 91.3±48.2, body height (cm) 173.1±6.5, body weight (kg) 64.7±8.4). 10m, 20m, 30m and 40m sprint tests were applied for measuring horizontal-vertical forces on a non-motorized treadmill. Isokinetic trunk flexion and extension applied at angular velocities 30, 90 and 180o.sec-1. Isokinetic knee flexion and extension applied at angular velocities 60, 180 and 300o.sec-1. Counter movement jump and squat jump were used as vertical jump tests. Standing long jump, standing triple jump, standing quintiple jump and standing 7-step jump were used as horizontal jump tests. Wingate anaerobic test was used for anaerobic power-capacity. The relationship among horizontal-vertical force performed in different sprint distances, jumping and isokinetic strength criteria were tested with Pearson correlation analyse and probability level was p?0.05.Subjects were have less affected by horizontal force while performing 40m sprint. This sprint correlate very significant statistical results (r=0.851 p?0.01) with among different angular velocity isokinetic trunk test and sprint velocities. The less occurence vertical force were perform while 20m sprint (932±46N). The highest correlation were found (r=0.829; p?0.01) among isokinetic knee flexion-extension and 20m sprint vertical force.In conclusion for impoving acceleration and less affected by horizontal component of ground reaction force trunk flexion and extension force, for minimizing braking vertical force, knee flexion and extension forces are both essential.