The dynamic model research on the three different take-off techniques of the triple jump

According to the research on the mechanical structure of triple jump and the technical features of each phase of triple jump distance,and set up the related initial conditions and boundary conditions,we can deduce the dynamic formula of the flight path and speed of each jump.Because the initial conditions and boundary conditions of each jump will be affected by the physical condition,type of movement and technical features of the athletes in the complete technology process of the triple jump,therefore,reasonable take-off techniques are the fundamental factor which decides the achievement of the triple jump.By establishing the dynamic model of the three different take-off techniques,the article provides a theoretical basis for the development of the teaching and training of triple jump.