TY JOUR TI EFFECT OF STRENGTH TRAINING ON THE PSYCHO-EMOTIONAL STATE OF THE SECOND MATURE AGE GROUP KW 2nd mature age KW stress KW strength training KW emotional state KW autonomic shifts KW psychophysical approach JO Scientific notes of P. F. Lesgaft University AU Semenova, S.A. AU Korolkov, A.N. AU Pichugina, E.V. AU Reznikov, V.A. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft