The Comparison Of Difficult Jumps And Leaps Made By Excellent Competitive Aerobics Players At Home And Abroad

Difficulty is an important part of complete set of movement in competitiveaerobics, symbolizes the high integration of stamina and skills of aerobics athletes, andis the key to winning the game. The difficult movements of jumping and leapingbecome the core of action content in the consequence of having movements owning thefeature of the largest number, the largest proportion, most adoptable actions of highscores as well as an advantage of a wide range of application value in successive《FIGCompetitive Aerobics Competition Rules》. Reasonable selection of difficult jumpingand leaping can not only diversify sets of actions, but also increase the difficulty valueand ornamental value of sets of actions.In an effort to provide a reference for further improving the competitive strength ineach item of our competitive aerobics, this study takes “The comparison of difficultjumps and leaps made by excellent competitive aerobics players home and abroad” asthe object of study. Using the ways of literature, video observation, mathematicalstatistics and comparative analysis, this paper compares the difficulty jumping andleaping in compete sets of actions in each item adopted by top6home and abroadplayers, objectively analyzes the strengths and weaknesses exist between Chinese andworldwide elite athletes, and make recommendations accordingly.The results show:（1）The number and level of difficult jumps and leaps have a certain magnitudeimprovement from1997to2016six versions of 《FIG Competitive AerobicsCompetition Rules》, the difficult jumps and leaps is still an important part of difficultyactions of CompetitiveAerobics, and is heading “harder” direction.（2）The average number of difficult jumps and leaps used by our elite athletes ismore than that of foreign elite athletes; The scores intensively scattered from0.5to 0.7, among which0.6point is the most, followed by0.5point and0.7point, whilethe situation of foreign excellent athletes is0.6point（the most widely used）, followedby0.8points. In addition, medium（0.4-0.6point） and high（0.7-0.8point） difficultyadopted by foreign excellent athletes was significantly superior to our athletes, but inthe ultra-tough action（0.9-1.0point）, the Chinese excellent athletes are significantlybetter than the foreign excellent athletes.（3）Chinese and foreign excellent competitive aerobics athletes both tend to select“Cossack”、“Pike”、“Straddle”、“Scissors leap”、“Tuck Jump”、“Air turn” intoSets of actions, but none of “Frontal split jump”、“Free fall airbone”、“Gainer”、“Sagitalscale airbone to push up”、“Scissors kick” has been selected; The proportion of ourexcellent athletes using “Tuck Jump” and “Air turn” is more than that of foreignexcellent athletes, but the proportion of foreign athletes “Cossack”、“Pike”、“Splitsleap”、“Switch Splits leap” is higher than our excellent athletes.（4）The higher scores of difficult jumps and leaps in sets of each item of ourexcellent athletes and foreign excellent athletes are mainly distributed in the earlyperiod or the middle.（5）Lost points of the difficult jumps and leaps in sets of each item of Chinaand top6players are mainly reflected in twist is not entirely（Including Stealing turnbefore take-off, Landing body angle errors）, feet are apart when landing, both feet orone foot landing is instable, hands and feet into the floor are not simultaneously landing,the legs separate but are not close in Pike. The landing stability and normativeaspects of the difficult jumps and leaps of our excellent athletes are superior tothat of foreign athletes, but the normative of turn、the consistency of the handsand feet while landing to push up,and the completion quality of Pike has still existsome gaps compared to foreign elite athletes, mainly reflected in the hands and feetdid not simultaneously while landing to push up, the Pike jump in the air, two legsseparated and the angle between the torso and the body is more than60degrees.（6）Foreign elite athletes have difficulty combination C-A and C-C in two forms,China’s only have C-A form; China and foreign excellent competitive aerobics athletes,the richness of difficulty combination have shown the insufficient, and the vast majority of difficult combinations of jumps and leaps were mainly distributed in the precedingset1-5difficulty positions, but in the later set10-11and11-12difficulty positions, therewere no difficult combinations of jumps and leaps; The convergence fluency of “beforeand after difficulty action” of C-A combination of our elite athletes is still a distanceaway from foreign elite athletes.