Abstract
The Physical Development (PD) of children - the major indicator reflecting influence endo- and exogenous factors on health of children's population. Dynamic monitoring over PD of children allows to estimate the phenomena occurring in society and environment. Results of research of physical development of 200 children of primary school age (9-11 years old) - natives of the Middle Ob area depending on a sex and age are presented. It is established that in all age groups prevail children with the average level of PD and normal body weight, but regional features are available, however: it is more school students with excess of body weight, than with its deficiency, both among boys and girls; the total sizes of a body changed within all-biological regularities, characteristic for this piece of ontogenesis, in 9 and 10 years difference on body length of boys and girls were absent, and "growth jump" was observed further, and from 11 years old girls started being ahead of boys on this indicator.
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