Analysis On The Choreography And Execution Of The Difficulty Of Movement In The Routine Of Team Jazz Cheerleading

Research purposes : Collective Jazz Cheerleading is an independent competition project,which integrates jazz dance movements.The technique,stretching,control,body position,style,continuity and unity of the team are its unique charm.In the past ten years of the World Cheerleading Championships,there are many Chinese collective jazz teams,but the results are still far from the level of the world ’s top teams.Based on this,in order to improve the level of collective Jazz Cheerleading competition in China,this paper tries to put forward suggestions and efforts for Jazz Cheerleading coaches and athletes in China.Research object and method : This paper takes the choreography and execution of difficult movements in the complete set of collective Jazz Cheerleading movements as the research object,and uses the literature data method,expert interview method,questionnaire survey method,video observation method,comparative analysis method and mathematical statistics method to establish the index of the choreography and execution of difficult movements in the complete set of collective jazz.The difficult movements of the top eight teams in the 2022 World Championships were observed to explore the characteristics and laws of the choreography and execution of difficult movements in the complete set of collective jazz teams.Research results :(1)Interpretation of competition rules : project definition clearly contains technical skills elements;the rules have clear provisions and restrictions on the number,connection and landing of difficult movements of single flipping and flipping.The score sheet clearly stipulates that 10 points stipulate the complexity of difficult movements,10 points stipulate the choreography of technical skills,and the overall score occupies an important score.(2)Construct the index of difficulty movement choreography and execution in the set of collective Jazz Cheerleading movements.Through the interpretation of rules and literature preliminary selection,the index is verified and adjusted by consultation,and then the questionnaire survey is designed for scoring screening and consistency test.(3)Observing and analyzing the choreography of the top eight sets of difficult movements in the collective jazz group of the 2022 World Championships,it is found that :In the richness of difficult movements,the number of difficult weeks of single rotation of the top ranked team is more;the lower-ranked team combination has less difficulty in turning.There are many choices for jumping difficult leg jump,vertical jump and reflex jump.The difficulty ranking of the jumping class is biased and different.In the difficult movements of balance and flexibility and tumbling,the Italian team has the largest number.In cooperation with other action elements,the top four teams have more dance movements than difficult movements,and the United States team has the most fusion components of difficult movements and dance movements.In the lifting and coordination movements,there are more difficult movements in the double coordination,and the lifting of difficult movements accounts for 50 %;In the cooperation with music elements,the difficulty movement part of the US team and the Mexican team is the fastest.The Ecuadorian team used music special effects twice.The special effect sound was the gunshot,and the action was the double Leap jump.In the cooperation with spatial elements,the single difficulty of the top team is mostly located in the front area;the multi-person difficulty ranking is more in front of the team.In the direction of the United States team to do difficult movements at the same time there are direction conversion.The difficulty orientation of the tossing class is the most.In terms of the connection of different types of difficult movements,the United States team and Mexico team have more types of difficult movements,more connections and more connections.In terms of connection continuity,the top four have 2 or 3 difficult movements at the same time and the former is more,while the last four have irregular connection continuity.(4)The observation and analysis of the execution of the top eight sets of difficult movements in the collective jazz group of the 2022 World Championships found that : In terms of the number of participants completed,half and more people completed the least.In terms of synchronization consistency,the difficulty of swivel,jump and tumble shows differences in the rhythm,posture and height of the top and back teams.In the quality of technical execution,seven teams failed in the execution of difficult movements,and the possibility of failure of swivel difficulty and tumbling difficulty was higher.The positioning of the swivel class and the jump class shows the difference in the angle between the legs and the body.In terms of control and strength,the differences between the top and bottom teams are as follows : squat posture,jumping explosive force and sense of stagnation,flip height and body tightness.Research conclusion :(1)Choreography and Execution : In terms of choreography diversity,most teams choose rich difficulty movements to maintain diversity,but they cannot choose all kinds of difficulty in a balanced way.In terms of choreography complexity,some teams arrange a large number of difficult movements,and at the same time,it is impossible to avoid more or repeated basic difficulties,exposing the limitations of selection.The excellent team is characterized by high difficulty,moderate quantity and high appreciation;in terms of choreography and other action elements,the excellent team pays more attention to grasping the connotation of the project,showing the unique charm of the project through concentrated dance movements.Some teams lack reasonable distribution and weaken the dance movements in pursuit of difficulty.In terms of choreography and music elements,excellent teams complete fast and fast-paced difficult movements under the cooperation of fast-paced music,reflecting the technical level;in terms of choreography and spatial elements,the change of direction is added to the execution of difficult movements to highlight the skills.The excellent team can master the choreography of all directions of the site and have the effect of space application.In terms of the types and quantities of different difficulty connections,the overall team level is relatively insufficient,and the number of types and continuous numbers of connections need to be developed and improved.(2)Execution : At present,the failure of difficult movements is a common problem of the collective jazz team.The execution of the problem cannot present a complete set of effects,resulting in the team ’s score reduction and direct impact on winning.In terms of action positioning and control and strength,there is a large gap in the level of execution between team members,which is insufficient in the unified standard positioning and control;in terms of the number of participants completed,at present,some teams include too many single and double executions,and the collective execution is less,which cannot form a strong impact,reflecting the limitations of team difficulty.