TY JOUR TI MODEL FOR INCREASING THE LEVEL OF PHYSICAL FITNESS OF MEN OF THE FIRST MATURE AGE ENGAGED IN THE "ATHLETICISM" PROGRAM KW physical fitness KW gto complex KW self-improvement KW athletic gymnastics KW students KW aerobic and anaerobic component JO Scientific notes of P. F. Lesgaft University AU Vavilov, V.V. AU Konovalova, L.V. AU Guryanov, A.M. AU Kuptsov, A.I. PY 2026 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft