王鹏_158英文.ppt

Reporter：Wang Peng E - mail：wp_nba@163.com Qujing Normal University Introduction Take-off stage is the most important in pole vault. It decide the performance of vaulter. This articles analyze the take off technique of the three best male (over 5.6 m) in our country. Some important data compared?with?best players in the world, finding out our disadvantages and problems. The aim puts forward some important advises for improving technique, raising?the scientific level of?training. Finally, the article will sum the most advanced “Free take-off” technique features at present. Object of study Top three of the 2008 national indoor championships in athletics (Shanghai station) Essential information of the objects: Method of photography analysis 1.Ariel system (software) 2.Dartfish4.5(software) Results 1. Posture of pole-grip approach and the moment of pole-turn began 2.Take-off technique There are two take-off styles of pole vault: the traditional style is “Run under pole take-off”, the advanced style is “Free take-off”. Chinese experts thought the essence of “Free take-off” is the opportunity of take-off relatively early, the pole just contact the deepest of the box when the take-off leg stretch which can free from the restrict of the pole, and keep horizontal velocity of CG to the greatest extent. “Free take-off” have a strict request for take-off distance. The close distance can’t fulfill the request of “planting first take-off later”. From the technical appearance, the most obvious is the horizontal distance of upper hand-takeoff point is close, we can see from table ,the average distance of LIU Fei-liang is only 5cm, and the other athletes are all over 16cm. The high vertical distance of upper hand-ground can explain the sufficient pole-lift, the distance of LIU is the highest, and YANG Quan is the lowest. From the highest height of