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Biomechanical differences in Ap Chagüi between white belt and black of taekwondo

Abstract:

Introduction: Biomechanics study the structures of kinematic and mechanical character makes it possible to detect supposed that promote a motor movement in function of technique optimizing in sports and therefore to performance increase. Objective: To determine the biomechanical differences in variables of technical movement in Ap Chagüi kick in taekwondo athletes with black and white belt. Methods: We studied a population of seven white belt and seven black belt athletes, investigating the kinematic variables of arm angle in its three phases, leg angle in its three phases, center of gravity in its two axes, velocity initial and final, total time and impact time. Results: There were significant differences between leg position (p= 0.053), X axis of gravity center (p= 0.026), initial velocity (p= 0.038) and final velocity (p= 0.017). As well as the impact time of the kick (p= 0.053) with Mann Whitney U-Test (a= 0.1). While there were no significant differences in arm position one (p= 0.259), arm position two (p= 0.535), arm position three (p= 0.318), leg position two and three (p= 0.209; p= 0.53), Y axis of the gravity center (p= 0.456) and total time of the kick (p= 0.805), although differences were observed in the average ranges. Conclusions: The descriptions and correlations kinematic variables in Ap Chagüi kick will allow future design of technical performance scale in taekwondo athlete from different training categories.