TY JOUR TI Involvement of legal representatives of adolescents with intellectual disabilities in joint physical activity sessions in the process of adaptive physical education KW adaptive physical education KW adolescents with intellectual disabilities KW motor activity KW volleyball KW legal representatives of adolescents JO Scientific notes of P. F. Lesgaft University AU Volinevskaya, I.G. AU Evseeva, O.E. PY 2025 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft