TY JOUR TI PROBLEMS OF INDIVIDUALLY ORIENTED CONSTRUCTION OF THE TRAINING PROCESS OF HIGHLY QUALIFIED BIATHLETES KW highly qualified biathletes KW load intensity KW intensity zones KW indicators of competitive activity JO Scientific notes of P. F. Lesgaft University AU Romanova, Y.S. AU Zagurskiy, N.S. AU Mihalev, V.I. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft