TY JOUR TI Changes in biomechanical parameters of the running stride of highly qualified female athletes in the 800 m distance during competition KW athletics KW middle-distance running KW highly qualified athletes KW high-speed video recording KW biomechanical analysis of running technique JO Scientific notes of P. F. Lesgaft University AU Rafalovich, A.B. AU Atkishkina, T.D. AU Drozdov, A.L. AU Podtochilin, A.M. PY 2025 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft