TY JOUR TI Correlation between functional parameters and competitive performance in the 800-meter run among female athletes aged 12–14 years KW athletics KW 800-meter run KW functional indicators KW competitive result JO Scientific notes of P. F. Lesgaft University AU Malysheva, K.D. AU Voroshin, I.N. PY 2026 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft