The effect of plyometric exercises to developing some physical abilities and kinematic variables of running steps and running (200 m) for players with hearing disabilities.

Abstract

The research aims to use plyometric exercises to produce important adaptations in the neuromuscular system and increase muscular efficiency during performance, and to demonstrate the effect of these exercises in developing the kinematic variables for both stride length and frequency and the completion of a 200-meter run, on a sample of elite athletics players for the category of people with hearing disabilities. For the period from 1/4/2023 until 5/7/2023, at the Ministry of Youth and Sports Athletics Stadium. The researchers used the experimental method because it suits the nature and problem of the research. The research also included presenting, analyzing and discussing the results of the tests under study. The researchers reached a set of conclusions, including that the plyometric exercises used within the training curriculum have contributed to the development of physical abilities, length and step frequency, and completion time for the members of the research sample. The results of the kinematic analysis contributed to knowing the kinematic variables of step length and frequency. As for the recommendations, adopting plyometric exercises effectively within the components of the training curriculum according to training loads and stresses that are commensurate with the capabilities of the individuals in the research sample, and using the results of motor analysis to find out indicators of step length and frequency to improve the motor performance of the (200m) event.