Biomechanics Analysis On Hammer Kick By Shandong Elite Women Taekwondo Athletes

Using biomechanics research methods and tactics, and, for eleven shandong province outstanding woman taekwondo athletes splitting technology action under the three dimensional camera technology was studied, and applied the German SIMI motion video analysis system for the woman next splitting technology action process analysis. Based on splitting technology under the action of starting, knee lift, kicking, or get the leg time. Joint Angle and speed, the center of gravity of the parameters such as the analysis, thus found different level athletes splitting technology under the action of the difference and common feature. To explore the taekwondo splitting technology action of inner structure and movement rules, and to improve our province women’s taekwondo training quality and level, and puts forward the quantitative data and theory reference. The results of the study show that:(1) Through the different grade woman taekwondo athletes study found that, the athlete group under the complete splitting time mean for T=0.90s±0.03, and student group of averages T=1.00s±0.06two groups of statistical test data statistical significant difference (P<0.05). Excellent sports group of players, in the application under attack split legs used time, want to less than students group(2) In the Y axis data can be seen above, the excellent athletes left lateral displacement fluctuation is not big, players and the team members mutual change very small, showed excellent athletes in the control your weight around the shaking, and stable balance the body appeared high level technical performance.(3) With the athlete’s starting, knee lift the beginning of the action, the athletes’ centre of gravity speed increased, and in kicking stage reach the highest peak, when kicking action is completed, center of gravity speed began to drop down rapidly. Athletes in the Z axis center of gravity rise, be helpful for taekwondo athletes use high altitude control superiority and the characteristics of the attack, the athletes’ feet end to obtain the maximum velocity and the maximum play down the length of the body, to hit opponents.(4) The splitting process, the right of the swinging leg hip change is more steady, and knee joint in starting, bend one’s knees process rising displacement obvious, even more than tiptoe, ankle change. In kicking process tiptoe, ankle joint displacement change the most outstanding, maximize. Kicking is completed, began to drop rapidly. The splitting process, the athlete’s joint displacement change size order:tiptoe>hip ankle>knee joint.(5) In the whole of the swinging leg, ankle in kicking feet target instantaneous speed is the largest, second for knee joint. And hip velocity in starting, bend one’s knees, kicking the whole process, the speed change relatively gentle, but to the athlete completes kicking action, the leg process, its speed began to become larger. Hip in the next splitting action, has always been a stable equilibrium to adjust action, in order to maintain the stability of the whole of athletes at the same time, complete the transfer momentum and regulation effect.(6) Women’s taekwondo athletes next splitting action, the left support leg with the right of the swinging leg down the completion of action, a rotation Angle existed, but also in XY plane with the right of swinging leg action constant change.