Research On The Characteristics Of The Run-up And Take-off Techniques Of Elite Male Long Jumpers In China

At present, China's men's long jump level has reached the highest level, in order to better grasp and understanding of Chinese elite male long jump athletes run-up, take-off of the main technical characteristics, this article USES the literature material method, the motion scene shooting method, mathematical statistics, comparative analysis method, to 2015 tsinghua leaping match before the man jump down two of five athletes step by step length, speed, the jump time, Angle of the pedal accuracy, leaps, coming up and the Angle of the knee joint during the takeoff speed and vertical speed and other related data, based on the relevant data of five excellent athletes in the world for comparative analysis research. Elite male long jump athletes run-up in our country, the main technical characteristics of takeoff.Research results show that(1) excellent long jump athletes second countdown step by step in China there was no significant difference compared with foreign excellent athletes, close to the foreign excellent athletes, average step for step 1 to 2.39 + 2.39 m, 2 step 2.26 + /- 0.10 m. Pour 2 step speed average was 10.63 + /- 0.05 m/s, positive, and the upper speed droop is lower than the foreign excellent athletes, rate of 1.00 + /- 0.64%.(2) the pedal accuracy is low, with a mean of 0.13 + /- 0.69 m, has some room to improve.(3) the takeoff time was 0.09 + /- 0.005 s, shorter than the foreign excellent athletes.(4) the knee joint cushion Angle is less than the foreign excellent athletes, T test analysis there was no significant difference between them(P > 0.05), shows that our country athlete's legs still need to further improve the support ability. Because our country athletes takeoff leg buffer when the Angle is less than foreign excellent athletes, so when the takeoff speed loss is bigger, the level of the run-up speed cannot be better into during the takeoff speed and vertical speed. In our country during the takeoff, the horizontal velocity and vertical velocity significantly less than the foreign excellent athletes, thus to get the appropriate leaps has brought a lot of difficulty, has a huge influence, as a whole has restricted the men's long jump athletes performance in China.