Litovchenko О.G., Nifontova О.L.
SOME PARAMETERS OF THE CARDIOVASCULAR SYSTEM IN NATIVES OF THE MIDDLE OB RIVER REGION WITH THEIR AGE OF 7–20 ^{[№ 1 ' 2010]}
It was shown that hemodynamic characteristics and parameters for the heart rhythm in residents of Surgut, who were born and reside in hypocomfortable climatic and geographic conditions of the Middle Ob River region, had regional characteristics changing in line with overall biological patterns i.e. increasing with the age of parasympathetic influences on the heart activity.

Nifontova O.L.
INDICATORS FOR CENTRAL AND PERIPHERAL HEMODYNAMICS IN SCHOOL CHILDREN FROM THE MIDLE OB RIVER REGION ^{[№ 12 ' 2008]}
The combined survey of 322 school children in the age group 7 to 17 years, born in the Middle Ob River Region, was carried out. It was found that for both sex groups the significant systolic and diastolic pressure increment occurred in 11-14 years, and additionally for the girls in 15-17 years. The significant difference by the sex was found for the diastolic pressure indicators only in senior school age children. The indicators of the functional change index were fit in with the parameters of the satisfactory cardio-vascular system adaptation with the exception of the school girls in the age group 15 to 17 years, for whom this indicator suggested tough adaptation mechanisms. The optimum eukinetic blood circulation type was appropriate to 35% of school children, and this type occurred by 2% more frequently in the boys than in the girls. The bulk of the children surveyed had the hyperkinetic blood circulation type in which the highly active sympathoadrenal system was characteristic.

Korchin V.I., Niphontova O.L.
AMPLITUDE AND TEMPORARY FIGURES OF ELECTROCARDIOGRAPHY OF NORTH NATIVE CHILDREN (KHANTY) ^{[№ 11 ' 2008]}
The authors have conducted electrocardiographic examination of 413 children belonging to Khanty aboriginal group. Between the ages of 7 and 17 years electrical activity of myocardium has been irregularly changing. Duration of atrioventricular conductance has been vigorously rising at the age of 15 – 17 years. Intraventricular conductance of boys has been changing wavelike, as for girls – it has been rising at the age of 15 – 17 years.