TY JOUR TI Attention development in older preschool‑aged children with severe speech disorders during physical education classes KW adaptive physical education KW adaptive physical culture KW older preschool children KW severe speech disorders KW attention concentration JO Scientific notes of P. F. Lesgaft University AU Eydel'man, L.N. AU Umnyakova, N.L. PY 2026 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft