A Comparative Analysis Of The Performance Of Chinese Elite Female Athletes In The 200-meter Individual Medley

In this paper,literature,mathematical statistics,image analysis,video shooting and comparative analysis are used as research methods The technical characteri stics of women 200 m individual medley swimmers in 2016-2019 National Swi mming Championships(including the National Games)are the research objects.The video of the competition is analyzed,the technical indicators of the athlete s are analyzed,the technical characteristics of the athletes are obtained,and th e theoretical basis is provided for the coaches to arrange reasonable training,s o as to improve and optimize the techniques of the athletes.The conclusion of the study is as follows:1.The average performance of China's women's 200 m individual medley is the best in the 2017 National Games,the worst in the 2018 championship,and th e overall performance of the 2019 championship has picked up;y.sw,an athlet e,has recovered in 2019 after the performance fell into a low in 2014,and is expected to make another good performance in the Tokyo Olympic Games.2.Based on the analysis of the results of the women 200 m individual medley final swimmers in the 2016-2019 National Swimming Championships(including the National Games),it can be seen that the performance of the final swimm ers in the starting stage has been steadily improved year by year,while that in the turning stage has been decreased,mainly in the 45-60m(butterfly to back stroke)and 145-160m(breaststroke to freestyle),but not in the sprint stage Ch ange.3.In the results of women's 200 m individual medley final in 2016-2019 swim ming championship,although there is no significant change in the total time o n the way,the results in breaststroke segment are significantly decreased,while the results in butterfly segment are improved;the impact of departure and spr int stage on the final results is relatively small.4.The women's 200 m individual medley final swimmers in 2016-2019 NationalSwimming Championships(including the National Games)can obtain high spe ed index and create good results by using better combination of stroke frequen cy and stroke amplitude according to their own technical characteristics.5.In the 2016-2019 National Swimming Championship(including the National Games)women's 200 m individual medley final,the speed reserve index of the top three athletes is higher,which is positively related to the final result.The higher the speed reserve index,the better the result;especially in the "two gu n system" performance is more obvious.