Research On The Gymnastics Aerobics Difficulty Movement Change And Pracitce Interaction Under The Rules

Competitive aerobics is a sports program with continuous,complex and high intensity complete set of motion with the accompaniment of music.As an emerging sports competition project,it has been developed for more than 20 years.With the development of various international competitions,the development of competitive calisthenics rules has been gradually improved.The rules of competitive aerobics are updated every four years,and every revision has a profound impact on the development of competitive aerobics.It is imperative to study the difficulty movements by the new rules of 2017-2020.This study combined with the literature material law,video analysis,expert interview method,mathematical statistics,from the difficulty,the score,the number of categories such as the inductive FIG 2013-2016,the FIG.2016-2017 rule of difficulty movement changes in specific circumstances,and through 13,14 of the gymnastics world championships,the 2017 world games set using the difficult exercises in the quantitative analysis and validation,provide a reference for the new cycle of competition and training.The research conclusion:1.The 2017 version of the rule has 283 difficulty movements,including 61 new difficulty movements?In group A,B,C,D four difficult life group no change in the root,but the root number of named by the 2013 version of 41 classes 38 classes into the 2017 version,removing the push-ups leaps.2.In the 2017 edition rules,the collective project A,B,C,group D difficulty selection ratio for 2:1:5:1,higher than the world championships collective project 2:1:5:2,as the games will be the team of "standard".3.Difficulty combination in two version of the rules changed,and in the world using the "C" two main connection combination,and 2017 for the first time the games the assembly is given priority to with "C-C-A" three connection combination,the proportion of more than 65%,far outweigh the utilization of two connection combination.In the current development trend,the three connections in the future competition will replace the two links as the main combination form.4.World championships in space combination form,mainly used in the "jump down + prone to push up(B-C-A + A-C-A)" is given priority to,mainly in 2017 world games meeting "jumped stand + + prone supports push up"(B-C-B + B-C-A + A-C-A)is given priority to,the assembly of the games for the first time in this new space form,make space more administrative levels feeling and visual impact.5.World in a single form of two connection for 0.1 connection points is the mainstream trend,the assembly and the 2017 world games in the form of three connection for 0.2 connection points comparison,from the development of competitive aerobics,the pursuit of 0.2 connection points will be the new cycle connection points of mainstream tendency.6.2017 the use proportion of ground difficulty in the world games will surpass the world championships,and the use rate of the overhanging class in group C is greater than that of the split leg.