I. Action Characteristics Competitive aerobics is an independent sport different from floor exercise, rhythmic gymnastics and acrobatics. According to its characteristics of many action types, complex actions, few repetitions, short practice time and fast action speed, the arrangement of competitive aerobics is obviously legal, and the competition rules stipulate the events, time and specific actions of the competition. Therefore, when arranging music, we must create a colorful set of actions according to the rules. Fast pace, large amount of exercise, heavy physiological load and high energy consumption of athletes require comprehensive physical quality of athletes. The pace is also closely related to the passion and atmosphere of the action. According to statistics, the speed of competitive aerobics music is mostly between 26 and 30 beats per 10 second, while the speed of fitness aerobics music is mostly between 20 and 26 beats per 10 second, which shows that competitive aerobics is faster, more passionate and appealing than fitness aerobics, and requires higher quality of athletes. Music is that embodiment of emotion. Aerobics music mostly adopts the era music with strong sense of rhythm, distinct sense of rhythm, beautiful tune, stimulating emotion and inspiring spirit. Judging from the World Aerobics Championship in 1994, most of them are their own music, and the sound of wind and rain is very consistent with the movements, which reflects their feelings. In the National Aerobics Championship in 1994, 40.6% of the teams adopted national music, indicating that the selection of music has changed from foreign music with a strong sense of rhythm to national music with China characteristics, which is coordinated with movements and embodies national characteristics. Fourth, the physical characteristics of athletes Aerobics is the combination of health and beauty, and competitive aerobics is the embodiment of health, strength and beauty. Therefore, the athlete's body shape has its special requirements. Men should show their muscles, be of moderate height and have a good figure. Women should show strength, fullness, and strength, and have the beauty of the times, such as firmness, sturdiness, and the unique beauty of women. That kind of gymnastics, rhythmic gymnastics and dancing are all in line with the characteristics of this project. An excellent competitive aerobics athlete, it is not enough to practice aerobics only, but also to strengthen strength practice to make his body fit. In mixed doubles and mixed sixes, it is also necessary to consider whether the body proportions of male and female athletes are coordinated. If the physical differences between male and female athletes are too large, it will affect the overall effect and the completion of some coordinated movements. 5. Difficult movements are the embodiment of athletes' ability. Judging from the World Championships and some domestic competitive aerobics competitions in recent years, three-point push-ups reflecting the strength of upper limbs have been widely used, and two-point push-ups (one hand and one foot) have been adopted by more and more players, and won the applause of female athletes in the compensation test. The two-point arm support and physical contact, non-physical contact and various posture changes of each set of movements appear 2-3 times, which reflects the ability of athletes and adds difficulty value and artistic appreciation to the routine.

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