A Study On The Correlation Between The Parameters Of The Take-off And The Pole Of The Excellent Male Back Style High Jumpers In My Country

Back-style high jump technology is a complex causal system composed of a series of action links.Any problem in one link will have adverse effects on subsequent links and eventually lead to the loss of sports performance.In these links,the performanceis directly related with over link of the sport;while the direct impact on the club is the take-off.Therefore,it is necessary to discuss the possible correlation between the back-to-back jump and the parameters of the poles from the perspective of kinematics,so as to provide a theoretical reference for the training of participants in the high jump project.This article takes the top eight athletes in the men's high jump in the finals of the National Track and Field Grand Prix in April 2018 as the test object.The methods used in this article are literature,expert interview,expert scoring,three-dimensional video shooting,video analysis and mathematical statistics,the correlation between the jumping parameters and the parameters of the eight athletes was studied.It has completed(1)the preparation,inspection and investigation of the"Question Questionnaire for the Breeding Parameters of the Back-to-Low Jump and the Screening of the Parameters of the Rods".(2)3D high-speed image capture of the men's high jump competition in the 2018 National Track and Field Grand Prix Finals,and processed the video using video analysis software.(3)usingspss20.0 and Origin software to analysed the parameters of take-off and over-rod technology.The study draws the following conclusions:(1)The time parameter of the rod has a high correlation with the jump parameters,such as ground speed,inward angle,right arm acceleration,arm swing amplitude,back rake angle and take-off time,and the correlation degree decreases successively.(2)The rotation speed parameter of the rod has a high correlation with the starting parameters such as the inward angle,backward inclination angle,torso angular velocity and swinging amplitude,andthe correlation degree is successively decreased.(3)The highest point of the center of gravity has a high correlation with the starting point,horizontal speed,combined speed,H1 percentage,starting distanceand the swinging amplitude of the swinging leg.(4)The parameters such as the speed of the ground jump,inward tilt angle,t backward tilt angle,rising angleand the swing amplitude of the limb have a large contribution rate to the parameters of the rod.In the practice training of high jump,the coach should first identify the rationality of the above-mentioned take-off parameters and consider the specific problems of other parameters.