TY JOUR TI SUBSTANTIATION OF THE EFFECTIVENESS OFPHYSICAL TRAINING OF THE NATIONAL GUARD TROOPS OF THE RUSSIAN FEDERATION ON THE BASIS OF CROSSFIT KW physical training KW national guard troops KW crossfit JO Scientific notes of P. F. Lesgaft University AU Goynov, I.V. AU Polyakova, T.A. AU Smirnov, A.A. AU Klyuchnikov, M.I. AU Mel'nikov, A.V. AU Bodko, S.P. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft