| Modern competitive gymnastics has a history of more than 100 years,as an indispensable international competitive event,known as one of the three pillars of the Olympic Games,especially gymnastics vault project is a decisive role in the competition,for the international competition added countless moments.This paper presents the distribution of the top eight outstanding athletes in the 47 th,48th and 49 th World Championships in the Tokyo Olympic Games,difficulty and quality of movement completion,this study sorted out and analyzed the series data of the women’s outstanding vault athletes in the individual final of the World Gymnastics Championships.In order to evaluate more effectively and accurately the actual difference of vault competition level of athletes with different levels.This thesis sorted out and analyzed the data of the top eight athletes in the women’s vault individual finals in the last three World Championships in terms of movement type distribution,This paper presents the distribution of the top eight outstanding athletes in the 47 th,48th and 49 th World Championships in the Tokyo Olympic Games,The analysis dealing with the changing characteristics of the world women’s vault movement type selection,the distribution of the movement type,the difficulty and the quality of completion,as well as the new development trend of women’s vault in the future.Combined with the 2017 edition--2021 edition New Rules for Women’s Vault,this thesis analyzes the characteristics and future development trend of women’s vault in the world,and also provides a reference basis for taking positive measures to meet new challenges in the future new cycle.Results are shown as follows:(1)Characteristics of movement types: In the three rounds,Powerful States favored Chengfei spring + Roundoff straight 900° with two jumps,accounting for 4 out of 9 person-time,and the difficulty value of the two jumps was up to 11.8 points.Chinese athletes mainly selected two jumps focusing on tsukahara back straight 630° and front hand straight 540°.Of the four categories,front hand(three moves)and Arab Spring(two)were the most popular,accounting for 31.3 percent of the total.Tsuka Bara(two)and Arab Spring 180°(one)were poorly used,These were 20.8% and 16.7%,respectively.According to the use of the movements,the front hand straight 540°accounted for the largest percentage with 22 percent of the total,followed by the front hand straight 360° and the Arab Spring with a small somersault 720°,Each group separately represents 17% of the total analogy.Another 900° Arab Somersault,15 percent of the total category.Tsukambara rear straight 630°,accounting for 13% of the total.The450° straight behind Tsukambara accounted for 8% of the total.The relatively small proportion was 360° and 720°,accounting for 6% and 2% of the total category,respectively.(2)Characteristics of difficulty value: the results show that the difficulty categories of the two jumps selected by the athletes are between the second and fifth categories respectively,and the difficulty value is between 5.2 and 6.2 points.The highest for south Korean athletes used before Straight 720°,difficulty value 6.2 points,but ultimately failed.The lowest score is 5.2,which is used by athletes from Canada and Uzbekistan.(?)=5.675,SD=0.259,Pearson’s correlation coefficient shows that it is highly correlated when R = 1.The data showed no significant difference in the correlation coefficients at the 47 th and 48 th World Championships at P> 0.05.There was no significant difference in the results of the 47-49 world Jinsei jump final > 0.05.The 48 th World Championships and the 49 th World Championships did not have significant differences at P> 0.05.(3)Characteristics of completion quality: the final scores generally ranged from8.5;The completion scores of above 9.5 were 2,above 9.0～9.5 20,above 8.5～9.0 20,above 8.0～8.5 3 and below 8.0 3.According to the data,the completion scores of the athletes are mainly between 8.5 and 9.5 points,indicating that other athletes are equally strong in the completion of movements except for several strong vault athletes.However,some deviation in the quality of the completion led to a gap in the final results.From the perspective of athletes’ finishing quality in the three World Championships,the total mean value (?)=8.853,SD=0.430,Pearson’s correlation coefficient is highly correlated.In terms of significance,E score of women’s vault in the 47 th World Championships has no significant correlation coefficient when P<0.05.The E score of vault in the 48 th and 49 th World Championships was significantly different in P<0.05.(4)Comparison of overall performance characteristics:These were 20.8% and 16.7%,respectively.but no significant difference between the remaining two groups(P > 0.05).When the mean significance level of the total scores of the three competitions was 90%,there was a significant difference(P<0.1)between the total scores of the 48 th and 49 th competitions,and there was no significant difference(P>0.1)between the other two groups.Research Conclusions:(1)The three world championships vault final,athletes main choice of vault action type for children,former hand turn,180 as a combination type,and the original action type is gradually reduced,child + turn 180,front hand turn + class,front hand turn +mound original three combination collocation for women vault final athletes main collocation action type.(2)The mainstream difficulty action is sub-straight 720 / 900,turn body 180-straight 180 / 540,straight 540,the difficulty value is 6.0 points above,the flying stage is mainly completed with the straight body,which is also the two-jump action choice favored by most athletes today.(3)High-quality action completion is an important guarantee for excellent results,and landing stability is the essential condition for excellent results.(4)The total performance of the athletes in the three World Championships is statistically significant,and the average value is constantly increasing,indicating that the difficulty value and completion quality of the athletes have been significantly improved.(5)High standards and high quality under the high difficulty are the necessary factors to win MEDALS,especially for the movement proficiency and the stability and accuracy of the landing,which will be the trend for more athletes to pay attention to the development. |
