Comparative Study On The Table Tennis Data Acquisition System Of Man's Top 8 Athletes In 29th Olympic Games

The strategy that"Not only knowing about ourselves but knowing about opponents"is the premise of arranging targeted training and is to ensure the success of competition. No effective ways can be developed to deal with our opponents until coaches and athletes have more refined and accurate grasp of the main technical and tactical characteristics of our main players and knowing more about technical characteristics, competitive style, customary lines, technical and tactical advantages and disadvantages of opponents. This paper makes dynamic diagnosis and comparative analysis of Chinese and foreign athletes in the four aspect,including tactics, hitting techniques, hitting positions and hitting placements,hoping to provide some valuable reference for coaches and athletes.Table tennis data acquisition system in Shanghai sports university Institute of training and research is used for data collection, and sports technical and tactical diagnostic methods applied are more advanced in the modern world一mathematical physics model,namely, the mathematical model method, which is a necessary complement to conventional diagnostic methods, particularly,has a higher Value guidance for high-level athletes technological innovation. This paper makes the following conclusions through diagnosis:I For excellent male table tennis athletes,the most important tactics are "offense-defense","stalemate-defense","defense- offense" and"stalemate-stalemate".If improving transition rate of "offense-defense" and"stalemate-defense",Chinese elites have greater impact on winning rate than foreign athletes, and promoting transition rate of "defense-offense" and,'stalemate- stalemate"is more beneficial to foreign elites.II For excellent male table Tennis players, the most important technology is the "loop - loop". With the transition rate of "loop-loop"improved, the probability for foreign elite athletes to win compeiition will be greater than Chinese athletes.III The most important hitting positions of male Table Tennis elites are"backhand bit-backhand bit", "hand bit-backhand bit", " hand bit-hand bit" "backhand bit- hand bit" .With improving transition rate of "backhand bit一backhand bit" ,"backhand- bit- hand bit" ,the best Chinese athletes will have a greater rate to win the games, and promoting the transition rate of" hand bit - hand bit"," hand bit - backhand bit" of foreign competition puts better influence on foreign elites winning games.IV For male Table Tennis elites,the most important hitting placements are the " long ball backhand bit- long ball backhand bit" , " long ball backhand bit- medium ball hand bit" and" long ball hand bit- long ball hand bit" with improving the transition rate of" long ball backhand bit- long ball backhand bit"," long ball backhand bit- medium ball handbit" ,the best athletes on the Chinese man will have greater probabilityto win a game,and promoting transferring rate of"long ball hand bit-long ball hand bit"of foreign elites athletes will be more probablyto win games for foreign elites.