المستخلص: |
Researchers have observed through field of experience, in addition to measures in other science department of movement and Department of sports kinesiology and teaching methodology the importance of such frequent use and its direct impact and influence in the outcomes of games, which illustrates the importance of this skill and the importance of studying different technical and mechanical aspects, to study the performance properties and biomechanical characteristics for circular front kick (Dollyo Chagi) in Taekwondo. Total performance time for performing circular front kick (Dollyo Chagi) to the head skill using left and right foot is (0.8 sec), as well as the total time for performing circular front kick (Dollyo Chagi) to the trunk skill using left and right foot is (0.76 sec). Resilience movement phase time for the right circular front kick (Dollyo Chagi to the head and trunk is slightly faster (0.20 sec) than the left kick (0.28-02.4 sec). The longest horizontal displacements calculated at the end of the main phase (impact moment) for the right foot circular front kick to the trunk is (1.505 m), while the left foot is (1,477 m). The longest vertical displacements calculated at the end of the main phase (impact moment) for the right foot circular front kick to the head are (1.995 m), while the left foot is (1.919 m). Velocity measures for kicking foot in performing circular front-kick (Dollyo Chagi) ranged between (6.38 m/s) to (7.17 m/s) Angular changes of ankle joint during the performance of kicking skills, ranged between (160°: 171 °), and almost at the moment of impact Angular changes of knee joint during the performance of kicking skills, left and right circular front kick to the head and trunk at the moment of impact are ranged between (166.7 °: 179.9 °).
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