| This article examines the individual technical characteristics(speed distribution,range of each jump,loss of each jump speed,and difference characteristics)of three athletes preparing for the Tokyo Olympics in the men’s triple jump: Zhu Yaming,Wu Ruiting,and Fang Yaoqing in the 2020 Olympic trials.the study.Through the Olympic trials,track and field championships and street competitions,summarize and summarize the relevant technical parameters of the best results in the 2020 Shaoxing Athletics Championships,and find out their respective technical characteristics(speed distribution,jump range,jump speed loss and difference characteristics)The characteristics and differences of the above,sum up their respective technical advantages and shortcomings,and make up for the shortcomings on the basis of the original technology to go further.It serves as a good reference for the training of youth and juvenile men’s triple jump athletes in my country,and can be used as a reference for the further research of future generations,so as to make certain contributions to the follow-up development of the project.This article uses literature review method,interview method,kinematic analysis method,mathematical statistics method,and comparative analysis method to analyze the three athletes’ time before the board ten meters,the speed before the board ten meters,the landing angle,the take-off angle,the vertical position to buffer the knee angle,etc.Perform shooting statistics and analysis.Through the analysis of the data,the following results are obtained:1.The time and speed of the three athletes in the first ten meters on the board are:Wu Ruiting’s speed is 10.20m/s in 0.96 s,Fang Yaoqing’s speed is 10.11m/s in 0.99 s,and Zhu Yaming’s speed is 10.14m/s in 0.99 s.2.The instantaneous speeds of the three athletes on the board are: Wu Ruiting is10.20m/s,Fang Yaoqing is 10.04m/s,and Zhu Yaming is 10.13m/s.3.The best landing angles for the three athletes are: Wu Ruiting(69.3°/69°/67°),Fang Yaoqing(68.3°/68.2°/66.3°),Zhu Yaming(67.9°/67.5°/65°)).4.The three athletes’ triple jump ratios are: Wu Ruiting’s triple jump ratios are37.2%,26.7%,and 36.1%,Fang Yaoqing’s triple jump ratios are 35.8%,29.2%,and35.0%,and Zhu Yaming’s triple jump ratios are 35.6% and 29.5.%,34.8%.Through the analysis of the results,the following conclusions are drawn:1.The speed change of Chinese men’s triple jump athletes in the first ten meters before approaching on the board is in line with the development trend of modern men’s triple jump technology.The factor that affects Fang Yaoqing’s take-off effect is the rhythm disorder in the game,and the difference between Wu Ruiting and Zhu Yaming is more stable.2.The three athletes Fang Yaoqing,Wu Ruiting and Zhu Yaming failed to achieve the maximum level of approach speed in the last step before the take-off,especially the two athletes Fang Yaoqing and Zhu Yaming suffered serious speed loss when pedaling.3.In order to comply with the trend of modern men’s triple jump,our country’s men’s triple jump should increase and improve the technical movements of the first jump to minimize the speed loss,which can preserve and pass most of the approach level speed in the second and third jumps.Improve the performance of our top athletes.4.At present,the landing angles of the three triple jumpers in our country are too large for the second jump(stride jump),which turns out to be that the take-off leg is not actively pressed down and the ground is imperfect.5.At present,the proportion of these three triple jumpers in my country is relatively low overall,and the range of movements has changed significantly,which is different from Edwards,the world’s male triple jumper.6.There is still a certain gap between the cushion knee angles of these three triple jumpers in my country and the world’s male athletes in the second jump(stride jump). |
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