The effect of special exercises with the line of action of the force using a proposed device on the development of rapid strength And the kinematic variables during the stage of increasing speed and achieving a 100-meter sprint for the applicants

Abstract

The research aims to invent and design a device for training physical abilities according to the line of action of force and angles for some technical stages of the effectiveness of 100 m. To identify the effect of special exercises according to the line of action of strength using the innovative device on some physical abilities and kinematic variables during some technical stages and the achievement of 100 m. As for the research problem, the researcher noted that most of the runners suffer from a problem, the lack of special exercises that correspond to each of the stages of 100 m in terms of the angle of work of the body. The researcher selected a community and his research sample. The research community selected the athletics competitors from the University of Qadisiyah team. Either the research sample are competitors (100m) and their number is 8 contestants (6) were chosen from the simple random method (lot). The researcher used the experimental method in the style of a single experimental group with a pre and post test. Conclusions The innovative device has a positive impact in developing the technical performance of the 100m runners,. The exercises with the innovative device have an impact on the development of the kinematic variables (step length, step frequency, and starting angle) for the 100m runners from the University of Al-Qadisiyah team. Recommendations Innovating other devices in developing the abilities and motor abilities of the 100m runners Pay attention to the exercises on the device because of their great impact in developing the elements of special physical fitness The explosive ability and rapid strength of the contestants’ limbs The effectiveness of the 100m team of the University of Qadisiyah.