Difficult Movements Of Five People's Aerobics In Colleges And Universities Under 2017-2020 Rules Research On Selection And Creation

In recent years,China's competitive aerobics collective projects have achieved remarkable results.From 2005 to the present,China 's six-person gymnastics(changed to five-person gymnastics after 2013)has won 11 championships in the world championships and the World Games.It has gradually become a key item of competitive aerobics in China.Competitive aerobics sets include exercises,difficulty moves,transitions and connection movements.There should also be cooperation and lifting movements in collective events.Among them,the difficult action is not only a measure of the athlete's technical level,but also a key factor that determines the athlete's ultimate achievement.Therefore,the selection of the difficult action in the set becomes very important.This article starts with the most difficult part of the set of difficult actions as the starting point,finds the common features of the creation of the difficult actions,and the factors that influence the completion of the difficulty actions.The substantial impact of completion has continuously strengthened the characteristics of difficulty,beauty,and innovation shown in competitive aerobics projects.The standardization,rationality,and objectivity of judgments have gradually improved,and the completion of difficult movements has also been improved.The artistic value Also gradually prominent.This article is based on "FIG2017-2020 Competitive Aerobics Scoring Rules",using the literature method,expert interview method,video analysis method,mathematical statistics method,and comparative analysis method for the 2017,2018,and 2019 National Aerobics Championships.The top three teams' difficult actions are quantified and analyzed systematically,comprehensively,and comprehensively.The advantages and main problems of the five-person exercise program in China are systematically,comprehensively,and comprehensively provided to improve the performance and comprehensive strength of the five-person exercise program of our school and the grassroots team Theoretical support and basis.Research indicates:1.Difficult action group,follow-up group,and score selection: Difficult action group tends to select three difficulty levels.The frequency of use of the leg-jumping group,body-jumping group,split-leg jumping group,scissor-type jump group,push-ups lifting group and support lifting group is 100%;the frequency of movements according to the Liuyugengen group is 78%;vertical The frequency of use of the action of the leg-hopping and root-jumping group is 67%;the frequency of use of the horizontal-supporting root-life group is 56%;the above 9 root-life groups are the most frequently used.The difficulty score is between 0.5-1.0 points,of which 0.5 and 1.0 points are worth the difficulty frequency of 6%(minimum),the difficulty frequency of 0.9 points is 15%,and the difficulty frequency of 0.7 points is 19%.The selection frequency of 0.6 and 0.8 points is 27(the highest).The difficulty score is selected between 0.5 and 1.0,of which 0.5 and 1.0 are worth the difficulty.The frequency of choice is 6%(lowest),the difficulty of 0.9 is selected by 15%,and the frequency of 0.7 is 19.%,The selection frequency of 0.6 and 0.8 points is 27(highest).2.Difficulty combination,inconsistent selection difficulty,difficulty layout selection situation: the connection score reaches the highest score,only Jiangxi Normal University reaches 0.4;the most frequent form of connection is C + C + A,accounting for 50%,difficulty and skills There are fewer combinations of connections,totaling 23%.The selection of inconsistent difficulty movements is increasing year by year,and the total frequency of use in the three games is 44%.In the arrangement of degree movement layout,a very reasonable proportion is 44%,a more reasonable proportion is 33%,and an unreasonable proportion is 23%.The use of inconsistently difficult moves is increasing year by year,with a total frequency of 44% in the three games.3.Difficulty scoring rate and consistency completion: The team with a scoring rate of 100% includes the 2017 Championship Beijing University of Chemical Technology,the 2018 Championship Beijing Union University,and the 2019 Championship East China Normal University,which only accounted for 33%.In the three games,the difficulty completion inconsistency in the set has not been zero.The number of difficulty completion inconsistencies of each team is between 1-4.Teams with good difficulty completion consistency accounted for 23%,teams with medium difficulty completion consistency accounted for 44%,and teams with poor difficulty completion consistency accounted for 33%.4.The quality of difficulty movement completion: The general phenomenon of deduction of points in general errors is uncontrolled hands / feet,separation of legs / feet,incorrect body posture and incomplete rotation.A typical error of the group A difficulty in the special error is that the shoulder and the arm are not on the same horizontal line,and Vinson's swinging leg is lower than the triceps / not on the arm.A typical error in the difficulty of B is when the body is supported horizontally and the body or legs are not parallel to the ground.The typical error of difficulty in C is that the hands and feet of the push-ups are not synchronized,the swing legs are not parallel to the ground,and the arms are not controlled during the flight phase.