The Kinematic Analysis And Training Of Zhang Yelinzi’s Arabian Double Salto Forward Tucked On The Floor Exercise

With the renewal and change of the rules of competitive gymnastics,floor gymnastics is developing towards more and more difficult movements.The difficult skill movement and the diversified movement arrangement have become the creation complete set characteristic of many world top contestants.In the floor exercise difficulty list of the women’s rules 2017-2020 recently issued by the International Federation of Athletics,the group E is the group E movement in which the backward turn of the spring and the turn of the hand are 180 °forward somersault(referred to as the Arabian double salto forward tucked).The value of difficulty is 0.5;The movement can be further developed into a more difficult Arabian double salto forward piked and Arabian double salto forward stretched;and the development of the action of the technical connection or mixed connection,to obtain connection points.In nearly five years of world competitions,every year in the free final athletes use this movement,which shows that this type of movement in the set has a certain value of difficulty as well as use value.At the same time,it also shows that the action has a large space for development.Combined with the personal training experience of learning and completing the movement,the kinematics analysis of the movement is carried out,and the theoretical knowledge of the movement is combined with the practical technology.By using the methods of literature,video analysis and expert interview,this paper takes the video data of Arabian double salto forward tucked,completed by Zhang yelinzi as the research object,and obtains the kinematics parameters of the four stages of preparation acceleration,take-off and turn,take-off and roll,and landing through APAS motion video system,focusing on the analysis of horizontal speed and take-off angle.The movement track and characteristics of the technique are analyzed in the following links: turning time,flying height,turning speed,timing of legging and height of center of gravity of landing.The differences among the five movements in different stages are compared and analyzed.The training methods of Zhang yelinzifrom learning to completing the Arabian double salto forward tucked are summarized for the training and teaching of the technique.Provide theoretical and practical reference.