Technical Analysis And Segmented Pacing Research Of Li Xue, An Excellent Female 400m Runne

Objective of the survey:This paper tries to compare and analyze the characteristics of the whole course speed of the domestic outstanding women’s 400 meters runners and discuss the distance of the top speed of the outstanding women’s400 meters runners with the application of section speed.Taking Li Xue,an outstanding female 400 m runner in Chongqing city,as the main object of study,this paper studies her speed distribution characteristics and speed difference,finds out the speed characteristics of Li Xue’s whole race,discusses the ideal pace state of 400 m race,and then formulates training methods suitable for Li Xue’s 400 m race to improve her sports performance.It is of practical significance and practical guidance for improving the level of Chongqing female 400-meter runners and shortening the gap between them and the world elite athletes.Methodology of the survey:This study takes Li Xue,a key member of Chongqing track and field team,as the research object,uses the method of literature,logical analysis,expert interview,mathematical statistics,comparative analysis and video analysis to process the relevant data and obtain the corresponding conclusions and countermeasures.Research results: Research results: Li Xue has advantages over domestic athletes in terms of speed characteristics in various segments,but there is a gap compared to foreign excellent 400 m runners,mainly manifested in the average speed,with a difference of 5 seconds between the 400m(s)and foreign athletes,The difference between the 400m(s)and domestic competitors is 2.5 seconds,This is also the main reason why Li Xue’s 400 m performance lags behind the top eight athletes at home and abroad...