TY JOUR TI Individual variants of the manifestation of subjectivity indicators in groups of athletes of different ages KW subjectivity KW socio-psychological adaptation KW athletes of different ages KW individualization of training JO Scientific notes of P. F. Lesgaft University AU Shatalova, V.D. PY 2025 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft