CINEMATIC ANALYSIS OF THE KICKING LEG VELOCITY AND ITS POSITION DURING PERFORMANCE OF THE MAWASHI GERI TECHNIC ON TARGET

Abstract

In this study is analyzed the kicking leg velocity and its position during performance of the technique by mawashi geri on target. The technique is performed by seven athletes with a maximal engagement on target. The target is fixed at a 1,8m height from the floor. All athletes are of male gender, with solid experience in karate sports and are black belt carriers. The analyzed results reflect the velocity of the kicking leg, including the knee and hip angles for both lower limbs. The maximal kicking leg velocity is 13.97 (m / s) and this is achieved before the target is kicked, or 76.74% of the movement trajectory. The angle on knee at the moment of the peak velocity is 118.14 °, while at the kicking moment; the angle achieves a value of 163 °. The hip angle of the kicking leg is smaller during the peak velocity 112.71 °, while at the moment of kicking the angle achieves the value of 108.42 °. On the supporting leg the knee angle value is almost the same with the moment of the peak velocity and the kicking moment (about 155). Meanwhile, the angle on hip joint of the supporting foot at the moment of the peak velocity is 125 °, respectively 122 °. The obtained results indicate an attempt to reduce the velocity just before the kicking and at the moment of kicking target, which probably presents practice achieved during the training process. The supporting leg takes angles that responding to the balance maintenance, while the kicking leg tends to be more stretched on knee in order to empty all its energy.