Comparing the response of voluntary contractions with different intensities, on one of the factors of physical fitness of the police

The purpose of this research was to compare the response of voluntary contractions with different intensities on one of the factors of police physical fitness (movement speed).

This research is semi-experimental with a cross-sectional and applied design, including 15 young male employees with at least two years of sports activity experience on five different days randomly, one of the general warm-up protocols, warm-up and half squats Static with 85% of 1RM and 50% of 1RM, warm-up and vertical jump with 6% of 1RM and 3% of 1RM by weight vest. After 7 minutes and 30 seconds after the implementation of the protocols, the movement speed test was performed. ANOVA test with repeated measures was used to analyze the data, and Benferroni's follow-up test was used for pair-by-pair comparison in SPSS21 software.

In the physical fitness test (movement speed) between the effects of high and low-intensity voluntary contractions of static (85 and 50% 1RM) and dynamic (6 and 3% 1RM weight vest); With general warming, there is a significant increase difference; This difference is significant in the 3% weight vest protocol test compared to the general warm-up.

The results of this research have significantly increased the physical fitness factor (speed) in the performance of the movement speed with a weighted vest load of 3%. The most effective of these protocols can be seen in physical fitness factors (power and speed functions).