TY JOUR TI Natatometer – correction of swimming technique based on available operational information about intracycle speed KW swimming KW sports biomechanics KW kinematic characteristics KW video recording KW accelerometers JO Scientific notes of P. F. Lesgaft University AU Krylov, A.I. AU Vinogradov, E.O. PY 2025 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft