TY JOUR TI INDICATORS OFPHYSICAL AND TECHNICAL FITNESS THAT DETERMINE THE EFFECTIVENESS OF THE TRAINING PROCESS OF QUALIFIED SWIMMERS IN FINS KW indicators KW efficiency KW training process KW qualified swimmers in fins KW physical and technical readiness JO Scientific notes of P. F. Lesgaft University AU Dudchenko, P.P. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft