UDC

612.017:612.08(1-925.13)

DOI

10.37482/2687-1491-Z022

Authors

Elena B. Afanas’eva* ORCID: 0000-0001-7566-6315
Natal’ya V. Borisova* ORCID: 0000-0001-9583-3424
*M.K. Ammosov North-Eastern Federal University (Yakutsk, Republic of Sakha (Yakutia), Russian Federation)
Corresponding author: Elena Afanas’eva, address: ul. Oyunskogo 27, Yakutsk, 677000, Respublika Sakha (Yakutiya), Russian Federation; e-mail: E.Cassi@yandex.ru

Abstract

This paper analyses the results of studies on the body’s compensatory-adaptive and reserve potential in the indigenous (Yakut) population and newcomers (from Central Asian countries) under the extreme conditions of Yakutia. It is known that Yakutia is characterized by a severe continental climate causing adaptive changes in the basic systems of the body. Anthropometric indicators (body length, body weight, and waist circumference) were studied; the state of the cardiovascular system was assessed by blood pressure and heart rate. To analyse the body’s compensatory-adaptive potential, we calculated the following: body mass index (BMI); Kérdö index, reflecting the state of autonomic regulation; index of functional changes (according to R.M. Baevsky), which shows the degree of the body’s adaptedness and the state of functional reserves and thus can serve as a kind of prognosis for health. The study revealed that, compared to the natives of Central Asia, the indigenous population had a higher proportion of overweight and obese people. The average waist circumference was also statistically significantly greater among the Yakuts. The analysis of the key parameters of the cardiovascular system revealed that adaptive reactions of the body have ethnic characteristics. Shifts in the BMI in Yakuts can be considered as one of the types of disturbance of the compensatory-adaptive mechanisms.

Keywords

indigenous population, newcomers, adaptation, functional reserves, adaptive mechanisms, Yakutia

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