TY JOUR TI EVALUATION OF THE EFFECTIVENESS OF EXERCISE COMPLEXES FOR THE DEVELOPMENT OF SPEED AND STRENGTH ABILITIES SWIMMERS HAVE KW qualified sprinter swimmers KW speed-force ability KW methods of sports training KW complex of exercises JO Scientific notes of P. F. Lesgaft University AU Ivchenko, E.V. AU Fedorov, P.O. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft