TheTake-offing To The Pole Kinematies Analysis Of Male Polehigh Jump Of The Eleventh National Games

Objective:The pole vault is the only track and field equipment projects to jump, one of the most complex projects in the track and field technology.After the founding of new China, the Chinese men pole vault has developed rapidly, due to China's economic, scientific, pole material, action technology development is lagging behind the developed countries, China and the World Men's pole vault results there is a big gap. China's Men's pole vault outdoor record of5.75m, compared to today's world record of6.14m, actually a difference of39cm. The data show that China and the world pole vaulter's body shape, the physical parameters of, and even some physical indicators of the level higher than the world's elite athletes, the achievement gap lies in the pole vault action.The sampling in2009the11th National Games Men's pole vault competition video from a kinematic point of view to explore the technical features of the action of the Chinese Male pole vaulter, and make recommendations for the development of China's pole vault.Methods:Men's pole vault final of the11th National Games, the top six athletes for the study, they represent the China Men's pole vault, the highest level. Used Nissan SONY-120X camera action on the object of study technology for filming purposes, domestic love Jie video analysis system on and each athlete's best score video parsing, parsing human body model is human modelindicator data to study, use SPSS17.0statistical software to analyze data collected finishing.Results:(1) The11th National Games men's pole vaulter jump from the instant of the average flight angle is22.1°; average speed is7.69m/s; the average vertical velocity is3.25m/s,. Athletic performance and take off from the instant off angle between the negative correlation r=-0.862; instantaneous horizontal speed and jump off the ground, a positive correlation between r=0.851; vertical speed and jump off the ground an instant negative correlation r=-0.873.(2)11Games of the excellent male pole vaulter pole jump moment string angle between32°-35°, with an average of33.9°, while the world's top athletes take-off moment of the pole string angle of30°-33°, only Liu Feiliang the rod string angle of32.3°in this range, athletic performance and the rod string angle is not correlated (P>0.05).(3) The11th National Games Men's pole vault athletes back level, the average left knee angle of107.3°, an average of the right knee angle of102.8°. Champion Liu Feiliang the left, right knee angle of153.6°,149.9°higher than the five other athletes. Athletes with back level when the left and right knee angle there is a significant positive correlation, r left=0.944,r right=0.943.(4) The center of gravity height and bar height difference between the11th National Games men's pole vault top six athletes were0.29m,0.21m,0.23m,0.32m,0.34m,0.37m. Body center of gravity height of athletic performance, and over the pole there is a significant positive correlation r=0.926, and the center of gravity height, bar height difference between the existence of negative correlation r=-0.831.Conclusion:(1) Pole vaulter in the take-off from the instant off angle, horizontal speed, vertical speed together affect the results of the pole vault. China's athletes in training and competition to choose to comply with its own characteristics off angle to the avoid athlete vertical velocity is too large and cause the loss of horizontal velocity. Athletes should be given the appropriate level beneath the speed and Jumping Vertical Speed to improve athletic performance.(2) Our athletes take-off moment of pole chord angle is too large, should be appropriate in the training of our athletes to improve the approach speed, grip height, to change the shortcomings of the rod string angle is too large, take-off moment, but athletic performance, and plug the hole instantaneous pole there was no correlation between the string angle pole chord angle of athletic performance can play a decisive role to be further research and analysis.(3) Pole vaulter in the back of the level, the size of the angle of the left and right knee with their athletic performance is closely related to. Left, right knee angle within a certain range, the greater the athlete's performance is better.(4) The11th National Games men's pole vaulter had success in the center of gravity height and bar height difference are more than0.21m, have the potential to challenge higher level.