00744naa#a2200169#i#450# EN\\bibl\109648 20251226092031.5 1994-4683 20250913b2025####ek#y0engy0150####ca RU Methodology of physical activity rationing in recreational physical activity through digital technologies Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2025 5 с. Journal article local Массовый спорт. Массовое спортивное движение. Народные виды спорта. 796.034.2 Kovalev Aleksandr Anatol'evich uchzapiski.lesgaft.spb.ru