engleski

Kinematic and dynamic analysis of a karate punch ushiro mawashi geri

An analysis of the karate kick ushiro mawashi geri, as performed by the karatist, a world vice-champion, weighing 70 kp and being 1.80 m tall was done. The aim of the investigation was to determine the parameters and values of the speed, reactive force components an the angles of the interrrelationships between individual body segments. Due to a high level of this fighter's karate technique, the obtained values can serve as a model for the correct performance of the ushiro mawashi geri karate kick. The kinematic analysis was performed by photogrametric acquisition with two VHS cameras operating at 60 Hz and the APAS (Ariel Performance Analysis System) movement analysis system. The components of applied force were measured using a tensiometric platfotm and the signals of the kinematic and dynamic measurements were time-coordinated and oriented in the same direction. The comparative analysis of the stated parameters shows that, from the methodological and pragmatical point of view, the splitting of the kick in the begining and preparation phases, and the performance phases is justified. The values obtained by the kinematic analysis and the measured force components enabled a logical interpretation of the movement structure.

karate ; kinematics ; dynamics ; ushiro mawashi geri

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