TY JOUR TI CHANGES IN THE INDICATORS OF MOTOR PREPAREDNESS AND PHYSICAL PERFORMANCE FROM THE BEGINNING TO THE END OF THE SCHOOL YEAR AMONG THE GIRLS OF 1-4 GRADES LIVING IN THE ULYANOVSK REGION KW schoolgirls KW testing KW motor preparedness KW physical performance KW changes JO Scientific notes of P. F. Lesgaft University AU Blinkov, S.N. AU Levushkin, S.P. AU Sokunova, S.F. PY 2026 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft