Analytical study of some kinematics variables for the last steps in the javelin event and their relationship with performance

Abstract

Kinematics is one of the branches of biomechanics used in the field of sports, and it is one of the important tools that aid in the diagnosis of faults and virtues of the technical performance of the movement. javelin. This effectively goes through multiple stages the require continuous biomechanical evaluation in order to accomplish advance achievement. This study's primary objective was to determine the values of some kinematic variables of the last three steps of the javelin throw by senior throwers from Erbil provence clubs. The the research population consists of senior throwers in Erbil governarate clubs who participated in the Erbil competition numbered (12) individuals, furthermore, the sample of (5) players intentionally selected from population. The results show that there is a correlation between the length of the second-to-last and last step in addition to correlation between vertical velocity in the third step with javalin achievement. The researchers concluded that the optimal extrusion angle (45 degrees) is not optimal for all events; although the javelin is a projectile, a 45-degree angle is not commonly used in the javelin (angle younger had a correlation with the best achievement of the angle 45).