Applications Of The Teaching Method Of Back Style High Jump Take-off Technique With The Principle Of Sports Bio-dynamics

Back style appeared over the years has been the world high jump technology trends,appear back style development of world high jump technology and improve the performance of the far-reaching influence,so in China’s track and field sports colleges and universities majoring in daily teaching, back style has become a compulsory technology. While in the back style of the actual teaching process, want to truly understand and fully grasp this technology is very difficult, the reason may be the teacher of the back style cognitive differences, there will be no standardized teaching methods, means, make students understand and master the technology of the degree are not the same in terms of structure. The concept of technical movements or technology,take-off technology is priority among priorities. The purpose is to take off body horizontal motion change for vertical movement, horizontal movement is generated when the speed of the human body Back on the basis of the analysis of bio-mechanical support action to ensure as far as possible into vertical speed, through the body’s upper and lower limbs caused by the swinging of the power to make the body around the take-off leg rotation, is successfully completed the lever action. From the technical structure, the back style jump teaching can include the right leg and swing leg swing arm and left leg buffer and pedal and stretch and other aspects of teaching(with left leg for the takeoff leg, right leg swing leg, for example). In this paper, the basic principle of theory in the teaching application, summed up the students in the learning process in the wrong action, find out the wrong action, hope for the teaching to provide a theoretical reference.The purpose of this paper is will be back involved in some scattered sports bio-mechanics principle system of, starting from the point of view of system wereanalyzed. The results show that the regulation application in the teaching. The application rules in this paper from the dynamics, kinematics, rotational mechanical principle of the three motor raw material mechanics principle in the teaching of Fosbury flop high jump take-off, draw the following conclusions:(1) In the course of take-off technology, the dynamic principle can be used to analyze the force of the human body, the size of the force, the change of the direction and the effect of the force, the energy conversion, the loss and so on.(2) Take-off technology teaching in applying the principle of kinematics can analysis during take-off swinging leg supporting the body posture, the last two strides of run-up speed, swinging speed of swinging leg and way, left leg foot angle, the left leg fast pedal stretched the required time.(3) Take-off technology teaching application of rotating mechanics analysis of all relevant human rotational movement, human in the process of take off in Fosbury Flop rotation points around each joint axis of local rotation and the whole body around the axis of rotation of the two. In the take-off technology teaching to the take-off in the process of takeoff leg braking body, the rotation of the swing leg and arm, and improve local link in human body rotation effect ways and methods etc. to solve a problem.(4) Application related sports bio-mechanical principles summarize, analyze the take-off movement and human in doing the movement not only translation or rotation of the,also is not a single bio-mechanical principle results. Only by comprehensively applying the relevant principles of mechanics system research were summarized in order to better guide the technical teaching and training.