Simonova Olga Ivanovna

Introduction. Due to the wide variety of ethnogeographic features and ecological niches, environmental differences as well as changes in living conditions, the study of the morphological status of indigenous populations of Russia retains its significance. Our aim was to study the somatic status and BIA body composition of young women of Altai and Russian ethnicities aged 17-23 years living in urban and rural areas of the Altai Republic.

Materials and methods. In 2021–2023, 230 young women aged 17 to 23 years (117 Altai-Kizhi and 113 Russians) living in urban and rural areas were examined. The examination program included anthropometry, the Heath-Carter somatotyping, and BIA. Ethnic differences and city-village differences were assessed using parametric and non-parametric methods.

Results. Ethnically Russian women were, in general, somewhat larger than Altai women, significant differences were found for height (Ht), weight (Wt), waist circumference (WC) and waist-to-hip ratio (WHR). Significant differences were also observed for the resistance R50, phase angle and fat-free mass (FFM) values. The somatotype distributions by enlarged classes were close with a predominance of mesomorphic and endomorphic types. When testing for city-village differences in ethnic subgroups, the total body dimensions (Wt, Ht, chest circumference), as well as WC, hip circumference (HC) and body mass index were slightly higher in urban residents (not significant differences). The urban Altai women had a statistically significantly higher endomorphy rating with a noticeable increase in fat mass (FM), %FM and fat mass index. Ethnic differences were more pronounced in rural (Ht, Wt, HC, WHR, R50, phase angle, FFM and fat-free mass index were significantly different) than in urban residents (significant differences only for Ht and FFM).

Conclusions. The results of our study suggest that permanent residence in urban or rural areas, along with ethnic differences, is a significant factor associated with the somatic status of young Altai-Kizhi and ethnically Russian women belonging to the modern indigenous population of the Altai Republic. In the subgroup of young women who are inherently living in the city, less pronounced ethnic differences in somatic status were observed as compared to residents of rural areas. © 2024. This work is licensed under a CC BY 4.0 license.