Technical Analysis Of Snap Shot Of Chinese Elite Male Inline Hockey Players

In order to fully prepare for the 2022 Winter Olympic Games,China Hockey Association selects ice hockey players from inline hockey,hockey and other events according to "cross event selection".In this context,the development of inline hockey in China ushers in new opportunities.The inline hockey is evolved from ice hockey.They are very similar in shooting technology,movement characteristics and so on.However,the domestic scientific research on inline hockey is relatively backward.Therefore,it is the primary task and main purpose of this study to attract more scholars and coaches’ attention to the research field of this project and provide them with new research vision and ideas.In this study,by using the methods of experiment,literature,interview and mathematical statistics,with the help of high-speed camera and surface electromyography tester and other experimental instruments,the ejection movements of eight Chinese men’s single row roller skaters were collected,and the sports and electromyographic data of ejection movements were analyzed to summarize the kinematic characteristics and electromyographic characteristics.In the ejection action,the average time of 8 test objects is 1.51 s,in which the average time of shaking wrist is the shortest,0.1s;the average ball speed is 22.56m/s,in which the fastest is 26.91m/s,the slowest is 17.23m/s;the average grip coefficient is 3.92,the minimum is 3.28,and the maximum is 4.99.The difference of hip joint angle of Fang is the largest(35 °),the supporting pedal is more sufficient,and the active flexion and extension ability is stronger.In terms of electromyographic characteristics,the athletes’ biceps brachii and pronator teres muscles were activated the most,and the biceps brachii muscles were activated the earliest;the lower hand muscle group was more advanced,and the upper hand muscle group was different.The overall characteristics of the ejection action of Chinese Elite Men’s inline hockey are as follows: the ejection action is completed within 2S,and the average ball speed is 22.56 m/ s,the average grip coefficient is 3.92;the range of elbow flexion and extension of athletes is the largest,while the range of knee joint and hip joint is small;in the ejection movement,the activation time of biceps brachii muscle of athletes’ lower hand is the earliest and the activation degree is the largest,and the lower hand is the main driving hand;the consistency of the driving time of the lower hand muscle group is higher than that of the lower hand muscle group.In this paper,kinematics and electromyography are applied to the analysis of shooting action technology of inline hockey,and the characteristics of ejection technology and electromyography are obtained,in order to provide scientific reference for the teaching,training and competition of inline hockey,provide research ideas for scholars and coaches engaged in inline hockey,and improve the research and attention in the technical field of this project.