TY JOUR TI MORNING HYGIENIC GYMNASTICS KW methodological approaches KW physical activity KW fitness of the organism KW organism's biorhythms KW hygiene requirements KW training procedures KW health KW personal approach JO Psychological and pedagogical problems of human and social security AU Titarenko, S.A. PY 2017 IS 2017 PB Saint-Petersburg University of State Fire Service of Emercom of Russia