TY JOUR TI ENHANCING SOCIAL SUSTAINBILITY SPECIALISTS OF THE STATE FIRE SERVICE EMERCOM OF RUSSIAN CIRCULAR MEANS OF PHYSICAL EXERCISE KW the modern requirements of training KW physical fitness KW level of functionality KW the circular physical training KW social stability KW aerobic exercise technique JO Problems of risk management in the technosphere AU Tyshchenko, E.G. PY 2013 IS 2013 PB Saint-Petersburg University of State Fire Service of Emercom of Russia