| In the 2019 Rhythmic Gymnastics World Championships,the Chinese group exercise successfully qualified for the Tokyo Olympics with the 7th all-around performance which launch a general attack on the Tokyo Olympics.What is the evolution ant division of national competitive strength of rhythmic gymnastics’ group exercise in the world?How to maximize the high-value difficulty score under the rule of no upper limit on the difficulty value?These are the problems worth studying and solving for clarifying the competitive situation of China’s rhythmic gymnastics team,perfectly presenting high-value sets of exercise in the competition,and successfully achieving the goal of preparation.Based on the 2017-2020 code of points,the research takes the competitive strength indicators and the set of difficulty values of the top 8 countries selected for the Tokyo Olympics group exercise qualification as the analysis objects.By analyzing documentations,rank sum ratio,video analysis,the research focus on the analysis of the evolution of the competitive strength of the world’s rhythmic gymnastics countries in the past ten years,examining the competitive situation of the Tokyo Olympic rhythmic gymnastics group exercise,comparing the difficulty value of the exercise between the key countries and the Chinese team,exploring the gaps in the number,value,type,and additional criteria of the difficulty’s value,and Practically puting forward strategies for improve the value of difficulty of chinese group team.It provides some reference basis for Chinese rhythmic gymnastics team to adjust its strategic layout and prepare actively.The results show that:1.In the past ten years,the national competitive strength of the world rhythmic gymnastics group exercise has shifted to the dominant country of Bulgaria,showing a trend of cyclical fluctuations.In the rhythmic gymnastics group exercise of the Tokyo Olympic cycle,Russia ranks first in competitive strength,and the competition for medals has become increasingly fierce among the three countries of Bulgaria,Japan and Italy.2.During the Tokyo Olympics cycle,the complete set of actions of group events showed a big increase in difficulty value,and the completion value fluctuated within a certain scope.There is a difference of 1.375 points in increase of difficulty value between my country and the key preparation countries.Increasing the difficulty value of the set is a practical problem that the Chinese rhythmic gymnastics team needs to solve urgently.3.Compared with the key countries preparing for the Tokyo Olympics,The number of rotation cycles of the Chinese team’s rotating body difficulty is too low.The average value of a Body Difficulty should be increased to at least 0.50 points;Exchange lacks two additional criteria of the rotation and the body difficulty with 0.10 score in the process of throwing,receiving and tying.Its total value should be increased to 3.60 points or more;The number of high-value complex collaborative actions is relatively small,and 2-3 more actions are required.The use of cooperative bonus factors is obviously insufficient,the factors outside the line of sight need to be increased by 4-6,and the factors that do not help with hands need to be increased by more than 3.4.There is no significant difference between the value of the Dynamic Elements with Rotation of the group exercise of the Chinese rhythmic gymnastics team and the preparation countries.Complete sets of great importance to the quality,improve the referee’s recognition;the number and value of Dance Steps Combination can be reduced,so as to provide sufficient time to complete other high-value difficulty types.5.In the critical period of preparation for Tokyo Olympic Games,we should strive to improve the competitive ability of athletes;The rules should be accurately grasped and used to effectively enhance the set difficulty value of the Chinese team.To promote practice by competition and accumulate actual combat experience,;We will strengthen epidemic prevention management,emphasize the psychological adaptation of athletes,continue to strengthen the comprehensive service team in competitions and training. |
