TY JOUR TI USE OF ULTRA-SHORT SWIMMING SEGMENTS IN SWIMMERS' SPECIAL TRAINING KW high qualification crawl swimmers KW biomechanical characteristics of swimming technique KW usrpt - ultra short race pace training JO Scientific notes of P. F. Lesgaft University AU Krylov, A.I. AU Vinogradov, E.O. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft