TY JOUR TI Effectiveness of a differentiated approach to the implementation of physical activity methods in classes for older women engaged in intellectually demanding work KW physical culture KW differentiated approach KW helath-improving gymnastics KW older women JO Scientific notes of P. F. Lesgaft University AU Kurova, T.V. AU Medvedeva, E.N. AU Zakrevskaya, N.G. AU Komeva, E.Y. PY 2025 IS PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft