Problem statement. Aerobic gymnastics is not only a type of physical training but also a top-level competitive sport which attracted many practitioners. As sports discipline has evolved rapidly through spectacular accessibility, being an attraction and challenge for the athletes who have completed their competitive activity in artistic gymnastics. The harmonious combination of specific resources (basic steps, difficulty elements) and nonspecific means (technical elements of acrobatic gymnastics ,rhythmic gymnastics, classical and modern ballet) led to improvement to the level of mastery of the motor content of this sport considered scene sport. In the composition of exercises at all competition levels in aerobic gymnastics are used elements from all four difficulty groups: group A - dynamic force, group B - static force, group C - jumps and leaps and group D - balance and flexibility. Methods.The present paper aims to analyze quantitatively by comparing the used elements from the difficulty group C - jumps and leaps and D- balance andflexibilityfrom the twelve editions of the World Championships of aerobic gymnastics. Note that the representative teams of Romania`s aerobic gymnastics have participated at all editions in the world championships starting with the year 1995, Paris edition, and the last being in Sofia, year 2012, gaining valuable results, enshrining the gymnastics representative as a great force in this sportive discipline. The working hypothesis is that the elements from group C - jumps and leaps- have a large percentage in the composition of exercises used in competition levels compared with the elements from group D - balance and flexibility. This is observed in all editions of the World Championships of aerobic gymnastics. The research method used was an ascertaining study based on video images. Results.The obtained results confirm the working hypothesis. The conclusions certify that at all competition levels: female individual, male individual , mixed pairs, trios and groups, the elements from the difficulty group C (jumps and leaps) have a higher percentage than the elements of the difficulty group D (balance and flexibility)in the World Championships of aerobic gymnastics. There is to be mentioned that this group C has the largest number of families of elements.
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