TY JOUR TI Application of the hardware-software polar complex for an assessment of a functional condition of cardiovascular system of children diving KW heart rate KW Polar KW diving KW children 12 years of age KW the cardiovascular system JO Actual directions of scientific researches of the XXI century: theory and practice AU Ogorodnikov, M.. AU Poddubnyy, S.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov