The effect of special exercises according to the relative speed in the development of some physical abilities and the achievement of men's 400-meter run

Abstract

The aim of the researcher, through his research, is to: Prepare exercises especially according to The kinetic energy index in the effectiveness of the men's 400-meter run And identify the effect of special exercises according to Kinetic energy in developing some special physical abilities and achieving 400- meter running for men The researcher assumed that there are statistically significant differences between the pre and post-tests and in favour of the post-test for the experimental research sample. The researcher identified the research sample as runners in athletics for men, as the research sample included (8) runners. They were distributed randomly by drawing lots into two control and experimental groups, each group consisting of (4) runners, as the experimental group implemented Special exercises Prepared by the researcher, either the control group The same traditional approach was adopted and the researcher concluded that speed endurance training at various distances had a positive effect on the experimental group compared to the control group. He came out with recommendations from it that it is preferable to adopt the standardized exercises prepared by the researcher in training runners for all groups to develop the ability to withstand the particular speed in the 400 m event.