Kinematics Analysis Of Athletes' National High Standard Tumble Turn

In this paper,we study mainly using the method of the experimental study of biomechanics and testing means,with the help of advanced experimental instruments Qualisys infrared high-speed camera 2 d / 3 d analysis system,high level of our country standard Dance athletes zhao peng Wang Qi-the World dancesport Federation(World Dance Sport Federation WDSF)high groups,group a champion of the waltz back turned my steps(Tumple Turn)action process for 3 d filming,in order to gain valuable kinematic parameters,kinematics analysis was carried out on the rolled their turned my steps.Research purposes: through investigation most dance teacher in the training and teaching students movement technology,usually its accumulated experience and proprioception,teach the students with the method of the precept.After consulting a large number of literature,sports scientific research personnel,there is little biomechanical research papers to ballroom,standard dance technique to make use of infrared high-speed video less 3 d analysis and study of the literature.So this article wants to use Qualisys motion capture system analysis software,accurate 2 d / 3 d data collected images and technical data analysis,hope for coaches scientific training,improve technology,provides the basis for correct action.Qualisys system ballroom elite athletes in China for the first time back,on the basis of the film and turned my feet movement,its purpose is mainly accumulated experience,the development of the standard dance techniques to offer help.Analyze the rolling motion of the step: 1.The women's center of gravity is down more than the men and forms the shape of the men's center of gravity.forward in the inner circle.Ms oscillating power legs phase in the outer ring,Ms.Right leg swing speed is faster than men's left leg swing speed,for better cooperate with the completion of action of men yi ms later than 0.19 seconds.Ms pivot phase in the outer ring,start 2.42 seconds time men left foot ankle out quickly,within 2.285 ms moment quickly to his right ankle,ms earlier than men with 0.135 seconds left.3.The speed of the head and the Angle between the knee and ankle can determine the quality and direction of the action.4.hip in sagittal axis tilted and torso in sagittal axis tilt is not synchronous,the action trunk in sagittal axis tilted more than hip in sagittal axis tilt,the man crossed legs stage only a trunk in the sagittal axis tilt,hip in sagittal axis did not tilt.5.Men are inclined,swinging and reproducing in action,early on in the woman,because the man is the leader,and the firm should send a signal in advance to guide the woman to action.Analyze the rolling motion of the step:1.The women's center of gravity is down more than the men and forms the shape of the men's center of gravity.2.When the two men and women dance together,there is a time difference in the rotation,and the person in the outer circle is going to stepforward in the inner circle.Ms oscillating power legs phase in the outer ring,Ms.Right leg swing speed is faster than men's left leg swing speed,for better cooperate with the completion of action of men yi ms later than 0.19 seconds.Ms pivot phase in the outer ring,start 2.42 seconds time men left foot ankle out quickly,within 2.285 ms moment quickly to his right ankle,ms earlier than men with 0.135 seconds left.3.The speed of the head and the Angle between the knee and ankle can determine the quality and direction of the action.4.hip in sagittal axis tilted and torso in sagittal axis tilt is not synchronous,the action trunk in sagittal axis tilted more than hip in sagittal axis tilt,the man crossed legs stage only a trunk in the sagittal axis tilt,hip in sagittal axis did not tilt.5.Men are inclined,swinging and reproducing in action,early on in the woman,because the man is the leader,and the firm should send a signal in advance to guide the woman to action.