The Construction Of The Index System Of Artistic Expressiveness For Free And Optional Items Of Synchronized Swimming

At present,the skill-leading competitive sports in difficult beauty events are developing vigorously,synchronized Swimming are also pursuing more difficult technical movements,more creative forms of expression,which is also constantly improving the requirements for athletes,Not only must have the exquisite technique,but also requires the extremely infectious expression.In this background,there is little difference in the score of the referee's score,and it is necessary to explore the artistic expression in the self-selection of the collective free choice of the synchronized swimming,through this research,we can make the free choice of swimming in our country more scientific,diversified and innovative in the collective arrangement,promote the overall effect to reach an ultra-high level,and promote the rapid development of the project,at the same time,it can also fill the gap of artistic expression of synchronized swimming.Through the research methods of literature,expert interview,mathematical statistics and so on,this paper studies the artistic expression of the free self-event of synchronized swimming.The conclusions are as follows:(1)The concept of artistic expressiveness is combed according to the grading standard of synchronized swimming and the results of expert interview,and the connotation of artistic expressive force of free choice in synchronized swimming is summarized.(2)Through Delphi method,the index system of artistic expression of free choice of swimming is composed of two first-class indexes,four second-level indexes and twenty-three third-level indexes.(3)Two sets of index weights are obtained by Delphi method and analytic hierarchy process,and the correlation analysis of the two sets of weight models shows that the correlation is higher(the correlation coefficient is 0.83),and the index weight is finally determined.(4)Internal factor(0.58)is the most important factor in the final index weight model,and the second grade index focuses on the competitive level of synchronized swimming(0.41),also the leg difficulty movement technique and physical quality are the most important under the third grade index,and the movement and music fit degree,diversity,creativity are more important.In addition,there is little differencebetween the music background and the theme weight of melody,which has little influence on the artistic expression of the free choice of swimming group,but it can not be ignored.(5)Combined with the free-choice final of Budapest World Championships in2017,the index model and weight model were tested back-to-back,it has a high degree of coincidence,which is proved that the index model and the weight model have strong maneuverability.It provides theoretical reference and practical value for the cultivation of artistic expression of swimmers.