Analysis On The Last Three Steps Of Approach And Take-Off Technique Of High Jumper-Wang Chen And Chen Ji

This paper present some of our elite male high jumpers in the final three-step approach run, jump and cross bar of the kinematic parameters of technical analysis and research, and strive for the country's high jump techniques and training methods to provide more scientific basis. At March 15,2009, on-site shooting Ba-Yi-Huang Temples Beijing National Indoor Athletics Championships points race, the selected results for the first game, the second player as the object of study, using three cameras with 50fps speed SONY Sync the best results shooting game players the last three-step approach run, jump and cross-rod technology, with the Beijing University of Physical Education Teaching biomechanics developed as Shi-Xun image processing software to deal with the human body model used in Zhaqie Sikorski. Methodology used mainly literature method, filming analytical method, data processing method and comparative analysis, draw major conclusions:5.1.1 At the present stage of China's elite male high jumpers in the height, weight, and other congenital conditions, and foreign outstanding high jumper no significant difference between. Reflects the concept of science in the vast selection of outstanding coaches to get the full attention, for the creation of outstanding athletic performance and create the preconditions.5.1.2 In this paper, the object Wang Chen and Chen Ji, the run-up speed with foreign athletes still have a certain gap between the performance in:off foot forward in an instant loss of velocity is relatively serious. Run-up the last step, stride is not open, move to a lesser extent. Swinging leg stretch effects pedal is not good, frog stretch amplitude smaller. Although the focus of a high degree of ups and downs relatively stable, but there is still more of center of gravity down.5.1.3 In the run-up lines, Wang Chen and Chen Ji, have adopted the "J"-shaped curved run-up lines, run-up tilt angle within the last three steps of the big run-up angle in line with the requirements of the high jump run-up techniques will help make full use of arc line run-up generated by inertia and centripetal force, to maintain the run-up speed has played an important role.5.1.4 In the take-off process, the study center of gravity vertical velocity with foreign players is not much difference in speed is also a good conversion rate. Take-off leg in general support the results were better. In the buffer stage, the study of the take-off leg muscles strong, good cushioning technology, there will not be too many problems. But in the pedal extension phase, because the tread is less stretch, especially the small joints tread stretch the range, so a direct impact on the entire take-off leg of the tread stretch technology.5.1.5 Study Wang Chen and Chen Ji, a take-off swing techniques vary, the knee angle changes are in compliance with the-small-a big trend. The difference is that technology is characterized by Wang Chen of the swing swing a short time, swinging to a lesser extent; and Chen Ji, is characterized by the performance of the swing leg swings big, fast.5.1.6 Wang Chen and Chen Ji, a pole technologies better able to compare a high degree of rational use of vacated. Both in the center of gravity away from the body over the bar when the bar, respectively 0.05m and 0.06m, shows athletes in the bar is technically still can be improved so as to achieve more outstanding special performance.