Research On The Trends And Forecasts Of The Achievements Of The World Track And Field Championships

In order to explore the development level and development trend of various sports events in the world,we will promote further breakthroughs in various projects in China.At the same time,we will help the world’s track and field countries prepare for the 17th(2019)World Athletics Championships.In this study,the average scores of the top three sports of each sports event in the previous track and field events are used as data samples,and the research results of various sports are developed using the methods of “literature data method”,“mathematical statistics method” and“grey Markov prediction method”.The trend was analyzed horizontally.The longitudinal trend analysis of each sports item was carried out by using the dynamic view of the ring and the dynamic map of the fixed base ratio in the SPSS mathematical statistics.Finally,the "Gray Markov Forecasting Model" is used to predict the results of various sports events in the 17 th World Athletics Championships.Analysis conclusion:1.According to the development coefficient,the hurdles of both men and women are on the rise;the progressive coefficient shows that the overall stability of the women’s hurdles is better than that of the men’s hurdles,and the stability of the 100 M and 110 M columns is better than 400M;According to the dynamic trend of the results,the development of the men’s hurdles in the 110 M and 400 M columns is relatively large,and the development trend of the women’s hurdles 100 M and 400 M columns is in the opposite direction.2.According to the development coefficient,the development status of women’s medium and long distance endurance projects is better than that of men;the progressive coefficient shows that the development status of men’s 10000 M is better than 1500 M,3000 obstacles,5000 M,800M,and the overall development of women’s5000M is better than 1500 M,3000 obstacles,800 M,10000M,but the stability of male and female 800 M project development is the worst;from the dynamic trend of performance,the three categories of men and women 800 M,female 1500 M,male5000M and other three projects have an upward trend,other projects are presented The downward trend,in which the 3000 M obstacles decline,is more obvious.3.From the perspective of development coefficient,except for women’s pole vault,the development of male and female jumping projects is on the rise.Men and women are in opposite developments in the three iron projects and the hammers;the progressive coefficient shows: men’s long jump and women’s support The results of pole jumping are better than other jumping items.The overall development of men in throwing projects is better than that of women.From the dynamic trend of performance,the three types of jumping projects,such as men’s long jump,triple jump and pole vault,have a flat upward trend.The high jump has a downward trend.The two types of projects,such as women’s long jump and triple jump,showed a downward trend overall and the long jump decreased greatly.The overall development of the triple jump project was stagnant,while the high jump and pole vault increased to a certain extent and the pole jump increased.Big.4.From the perspective of development coefficient,the overall project is on the rise and the overall development of women’s Heptathlon is better than men’s decathlon;the progressive coefficient shows that women’s seven-round all-round development and stability are better than men’s decathlon From the dynamic trend of performance,the overall development trend of the men’s and women’s comprehensive projects is reversed and the men’s decathlon development has caught up with even the women’s seven-all-around.5.This study uses the advantages of gray GM(1,1)model and gray Markov prediction model to seamlessly connect,and finds through the test: "Gray Markov prediction model" is more gray GM(1,1)model The prediction accuracy is higher and more conducive to scientific theoretical guidance and practical practical significance.