TY JOUR TI Effectiveness of 40 seconds of pre-exercise hyperventilation in improving bench press performance KW powerlifting KW bench press KW hyperventilation KW fitness KW strength training JO Scientific notes of P. F. Lesgaft University AU Naletov, A.A. PY 2025 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft