TY JOUR TI Modern methods for developing strength endurance in FPS Institute cadets at the initial stage of training KW FPS cadets KW physical training of cadets KW initial stage of training KW strength endurance KW circuit training KW interval methods KW professional-applied physical training JO Scientific notes of P. F. Lesgaft University AU Shestakov, M.A. PY 2026 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft