TY JOUR TI Techniques of mental self-regulation when tired, used by athlete different qualifications KW physical self-regulation KW sport psychology KW tiring JO Scientific notes of P. F. Lesgaft University AU Pilina, I.B. AU Antipina, Y.V. PY 2025 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft