| As early as the 18 th century,the triple jump was developed into a competition item by the world,because of the disunity of technical action and the imperfection of rules,there are great differences.In the 19 th century,the technical action standard is three jumping techniques with different structures,such as single foot jump,step jump and so on.During this period,through exploration and research,we can draw the following conclusions: the performance of men's Triple Jump Athletes in terms of the development speed of the world record,the proportion trend is relatively small.In view of this phenomenon,Chinese researchers have made a lot of research on the technical movement,competitive ability and physical characteristics of triple jump athletes.According to the earliest records of the 19 th century,the level of men's triple jump in China shows the best result of China's triple jump with a score of 14.0m at this stage,while the Japanese players in this period have already broken the 14.0m mark.Until the 1880 s,Zou Zhenxian of China broke the Asian record with 17.02 m,and the world level has reached 17.89 m.The whole process of historical evolution found that the gap between the level of triple jump in China and the world level was gradually shortened,and the sports performance was gradually improved.Tracing the root,through the in-depth research and practical application of triple jump,the research learners gradually improved their technical movements and physical quality.The men's triple jump,the most amazing achievement in history,originated from the love of Waltz by British athletes.However,China is developing in a slow form in the process of record breaking.Compared with the two development rates,it shows that the development level of China's men's triple jump lags behind.Therefore,in order to narrow the gap with the world level,Chinese researchers have carried out in-depth research and found that a large number of studies have carried out comprehensive research on its technical movements,physical quality,body shape,physical strength,etc.Nevertheless,when applied to practice,it is found that the theoretical basis does not support the practical operation of all athletes,so this process needs a reasonable adjustment by the coach.In order to select the best scheme,the training method should be integrated.At the same time,it is found that the main research direction in our country is "speed" in many studies,most of which are technical movements,physical characteristics,body shape,etc.While the speed passing by in this research field is paid little attention.From the perspective of kinematics,this study analyzes the technical movements of the top 8 men's Triple Jump Athletes in the national track and Field Championships through the kinematic indexes of technical movements of sports events,so as to be able to change the technical movements flexibly through the index data,especially the detailed research on the "speed" indexes,further highlighting the remarkable characteristics of the contemporary triple jump "speed type".It can provide quantitative index and reference for the scientific training of Chinese Elite Men's triple jump athletes.In addition,the research object is the national track and Field Championships Men's triple jump athletes,which basically represents the highest level of triple jump in China.The results of the study and the obtained kinematics parameters can be used for reference,so as to have guiding significance in training and provide a reference for the coach in making training plans.The object of this study is the technical movements of the top 8 men's Triple Jump Athletes in 2018 national track and Field Championships.The core of this study is to conduct in-depth exploration and research around “speed".The research methods are mainly analyzed in four ways to obtain accurate data and ensure the authenticity and accuracy of the research materials.At the same time,with the help of databases such as CNKI,VIP,Shanxi University Library and Wos data,the time span is set to nearly10 years of relevant literature and materials,and through the processing of visual information software,the relevant information of triple jump is obtained more detailed research level in literature and research field.From the perspective of research,this paper mainly discusses the approach speed and speed utilization rate of triple jump,the related angular speed analysis of triple jump technical movements,the swing speed of triple jump and the coordination of upper and lower limbs.The results show that:(1)The research direction of our country is focused on technical movement,the research dynamic late management mode has not been reflected,while the foreign research focuses on biomechanics and the later management solution mode,which is relatively perfect contrasted with the defect of our research field;(2)The upper limb technical movement follows the opposite movement law,and the optimization mode is "single arm swing plus single arm swing plus double arm swing".The mixed arm swing mode can increase the body's forward movement inertia;(3)The arm swing can form the shoulder belt twist so that the waist can produce antagonistic rotation,coordinate and maintain the body balance,which has achieved to speed up the coordination of arm swing and leg and increase the swing speed.(4)Chinese men's triple jump athletes do not swing actively in the swing leg,and do not fold tightly in the swing leg,which resulting in an lax state.As a result,the take-off links of each technical action are not sufficient and the horizontal speed is greatly lost.Accordingly,they should increase the training of leg strength muscle,at the same time,strengthen hip joint strength training to achieve positive send hip and increase down-force speed.(5)From the perspective of sports biomechanics,analyzing the technical movements of the triple jump athletes in China,some technical movements can not be better completed,which is closely related to the weakness of the leg strength and the poor ability of retreat. |
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