Sex differences are a very present aspect in the world of work and sports. This translates into the differentiation of sports activities, determined as masculine or feminine. Hence, the aim of the study was to analyze the level of participation and morphological characteristics in acrobatic gymnasts and to see the differences in relation to sex and role: Base and top. Participation in the Spanish Championships between 2011 and 2018 was analyzed, and anthropometric measures, body composition and proportionality were compared, depending on the role of perfor- mance and sex. The Autonomous Committee of Research Ethics of the Xunta de Galicia (Spain) approved the work methodology. The results showed a much higher percentage of participation according to sex in favor of the female sex in all the analyzed championships. However, the weight, body mass index and muscle percentage were not different between sexes in either of the two roles. Of the 62 morphological variables evaluated, there is a greater predominance of differences in the bases than in the tops ones in relation to sex, highlighting the percentage of fat.

KEY WORDS: Acrobatic gymnastics; Sex differences; Morphological characteristics; Body composition.