Research On Evaluation Methods Of Individual Technical Specialized Balance Ability Of Latin Dance Students In Beijing Colleges

With the rapid development of sports dance,the project is becoming more and more competitive,and it has put forward more comprehensive and strict requirements for the technical level and physical fitness of sports dancers.The arrangement of the movements of the Latin dance combination today shows a trend of fast rhythm,strong power,multiple rotations,and high difficulty.All movements must be based on controlling the body posture,and move and change the center of gravity quickly and steadily with the change of music rhythm.;Through the continuous updating of the scoring rules and the focus of coaches’ daily training,we can see that technology is the core of Latin dance,and improving the quality of technology is the key to achieving excellent results for Latin dance students,and the stability of the movement completion directly determines the technology The quality of the movements requires that the Latin dance students have a strong balance ability.However,there are few related researches on the special balance ability of Latin dance at present.Based on the characteristics of technical movements,this paper studies the test methods for evaluating the individual technical special balance ability of Latin dance students,and further strengthens the scientificity and selection of Latin dance selection,evaluation and training.Pertinence,so as to improve the competitive level of Chinese Latin dance students and obtain more excellent competition results.In this paper,the methods of literature data analysis,Delphi method,test method,and mathematical statistics are used to screen,test,and test the reliability and validity of Latin dance students’ single-person technical ability.The study concluded as follows:1.The test results of balance ability showed that high-level Latin dance students had better dynamic balance ability and static balance ability than low-level Latin dance students,and there were significant differences(P <0.05).There was no significant difference in the results of closed eye single leg standing test between students of different levels(P > 0.05),which indicated that the test method could not accurately and effectively evaluate the static balance ability of Latin dance students.2.Through the analysis of expert rounds of questionnaires,three-dimensional video testing,and stepwise regression screening,it was found that the highest R~2 of cowboy rotation and kicking is 0.869(P <0.001),which is the highest fitting degree and can be reliable.Effectively evaluate the special balance ability of single skills of Latin dance students.3.Analyze the test indicators related to cowboy rotation and kick.Only the two indicators of the trunk angle and the center of gravity displacement in the Y(left and right)direction have significant differences(P <0.05),which has the highest fitting degree with the dynamic balance test results,and can reliably and effectively evaluate the special balance ability of Latin dance students’ single skill.4.The evaluation method of the single-technical special balancing ability of the students of Latin dance in Beijing colleges and universities is as follows: the three-dimensional camera test is used to test the cowboy’s translation and kicking movement,relying on the center of gravity,from the torso angle and Y(Two different angles of the center of gravity displacement in the left and right directions are comprehensively analyzed.The closer the torso angle is to 90 °and the smaller the displacement of the center of gravity displacement in the Y(left and right)direction,the stronger the special balancing ability.