TY JOUR TI INTENSITY OF THE LOAD ACCORDING TO THE "CROSSFIT" TRAINING SYSTEM ADAPTED TO THE CONDITIONS OF THE AQUATIC ENVIRONMENT FOR QUALIFIED SWIMMERS OF THE UNIVERSITY TEAM KW sports swimming KW crossfit KW power zones KW swimmers KW training KW heart rate KW pace KW load KW intensity JO Scientific notes of P. F. Lesgaft University AU Lavrenteva, D.A. AU Mikryashov, G.V. AU Nechaev, E.G. AU Koroleva, A.V. AU Maksimov, E.N. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft