The effect of functional exercises according to step length and frequency with an assistive device on special speed types and the achievement of 200 m runners under 20 years of age

Abstract

The research aims to prepare functional exercises according to the length and frequency of the stride with an assistive device for special types of speed and the achievement of 200 m runners under 20 years of age and to identify their effect.

This was reflected in the time for covering these distances and the impact on the speed rate and thus on the achievement of the experimental group. It was also shown that the lower the rate The length of the stride increases the rate of stride frequency, especially in the last 100 meters of the race distance, and this benefited the sample, the experimental group, the research, especially in the post-tests, and the development of achievement in the 200 m competition is linked to many basic variables without which the achievement cannot be achieved, which is (the special table). And (variables of step length, frequency, speed rate, and performance time for each stage of the race), and this is what was achieved for the experimental group, which gave preference to the control group. We recommend using It is recommended that the target training intensity be determined according to time based on the results of the analysis. It is also recommended to develop the rapid strength of the legs because of its importance in sustaining the propulsion of the legs and achieving a good relationship between the frequency of steps and their lengths, and thus the direct effect on the rate of speed. There is a need to pay attention to step length development exercises because of their importance in increasing the adaptation of sample individuals to the change in the length of these steps over the stages of the race.