00768naa#a2200181#i#450# EN\\bibl\113416 20260204214755.3 1994-4683 20250913b2025####ek#y0engy0150####ca RU Determination of joint mobility as a means of selection and assessment of the potential of those engaged in rhythmic gymnastics at various stages of training Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2025 6 с. Journal article local Художественная гимнастика. 796.412.2 Terehin Vladimir Sergeevich Suprun Aleksandra Aleksandrovna uchzapiski.lesgaft.spb.ru