TY JOUR TI PHYSICAL TRAINING OF FIREFIGHTERS, DEFINITION OF AN APPROACH TO OPTIMIZATION (MECHANIZATION) OF CERTAIN TYPES OF WORK DURING FIRE EXTINGUISHING KW physical activity KW fire protection KW fire KW efficiency KW energy consumption KW exoskeleton JO Siberian Fire and Rescue Bulletin AU SHirinkin, P.V. AU Ishchenko, A.D. AU Fogilev, I.S. AU Androsenko, S.G. PY 2025 IS 2025 PB FSBEE HE Siberian Fire and Rescue Academy EMERCOM of Russia