PHYSICAL DEVELOPMENT OF NATIVES OF THE MIDDLE OB’ REGION AGED 5-7 YEARS
Indicators of physical development are the most important medical and biological criteria that reflect the influence of endogenous and exogenous factors. This study presents features of the physical development of children aged 5-7 years in the first and second generation of the alien habitancy of the unstable population of the Middle Ob’ region, who were born and permanently live in the hypo-comfortable natural and climatic conditions of the northern region of Russia. A total of 70 children of both sexes were examined. Results of the study showed that the main indicators of physical development of children aged 5-7 years of the Middle Ob’ region were within the general biological patterns, while a wide variability of the analyzed data was observed. The predominant body type in the examined group of children was mesomorphic, the level of physical development was "average", harmonious physical development was observed in 72% of boys and 54% of girls. The annual body mass gain in the examined children aged 5-7 years ranged from 0,80 to 1,30 kg per year, the increase in body length from 3,00 to 5,70 cm per year. There were no statistically significant differences in body length and mass in boys and girls aged 5-7 years.