The influence of static and dynamic force to ankle flexion muscles and to the results of jumpers

Aim: to identify the influence of static and dynamic forces to ankle flexion muscles and to the results of jumpers. Objective: the force of ankle flexion muscles. Participants: Two various age groups of women – long jumpers, high jumpers, triple jumpers and pole vaulters. The first age group consisted of 12 women. The age mean: 19,3 ± 2,5 years, height: 168,6 cm ± 3,8 cm, weight: 54, 70 kg ± 2,3 kg. The second age group consisted of 11 women. The age mean: 17,9 ± 3,9 years, height: 172.9 cm ±9,1 cm, weight: 60, 5 kg±6 kg. Methods: dynamometry, statistical analysis, pedagogical testing. Process of the study: The first group took part in the maximum contraction force (MCF) test in order to measure the static force of the ankle flexion muscles. We have used MCF test before and after the warm-up with the knee fix at 900 angle and the ankle fixed at 700. The second group was tested in isokinetic regime using the 600/s, 1200/s, 1800/s peak torque. In addition, the participants also took part in vertical standing high jump, the 10cm drop jump, and standing long jump tests. Results: the result of the main leg: 120,08 ±22 Kg, the result of the other leg: 114,21± 22 Kg. The MCF result before the warm-up: 119,2 ± 19, 8 Kg, and after the warm-up: 121,7 ±24,1 Kg. The test result of the main leg force in isokinetic regime using 600/s was 88,70 ±3,95 Nm, the result of the other leg: 87,94. ±7,13 Nm. Using 1200/s, main leg: 82,74±4,11 Nm, the other leg: 72,75±3,36 Nm. Using 1800/s, the main leg: 71,79±3,32 Nm, the other leg: 67,25±3,68 Nm. The force of the right leg in isokinetic regime before the warm-up was 69,44 Nm, after the warm-up: 88, 06 Nm. The result of the left leg before the warm-up was 74,11 Nm, and after the warm-up: 82,20 Nm. Conclusions. 1. The MCF test and isokinetic regime test of our participants have shown that the ankle flexion muscles’ force of the main leg was slightly higher than the other leg. However, no statistically significant difference was found. 2. After the warm-up, the results of MCF test and isokinetic regime test were slightly better than without the warm-up. However, the statistically significant difference was found only comparing the right leg results in 600/s and 1800/s peak torque. 3. The correlation between MCF results of the participants and the best 2013 summer season competition results was weak. 4. The average correlation was obtained between standing high jump and the force in isokinetic regime using smaller angles (600/s and 1200/s). Also, the average correlation was obtained between drop jump and the force in isokinetic regime using larger angle (1800/s)