FLEXIBILITY RESEARCH IN RHYTHMIC GYMNASTICS: DETERMINATION OF LEG FLEXIBILITY USING MUSCLE FORCES . International Scientific Journal Alfraganus, [S. l.], v. 2, n. 2, 2024. DOI: 10.63294/isja/vol2iss2/54. Disponível em: https://journals.afu.uz/index.php/isja/article/view/54. Acesso em: 19 may. 2026.