TY JOUR TI Pedagogical system of integrating physical and technical training of swimmers, based on the synergy effect KW swimming KW integral training KW synergistic effect KW adjacent training methods KW pedagogical system JO Scientific notes of P. F. Lesgaft University AU Arishin, A.V. PY 2026 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft