Heart rate variability in persons of Tajik nationality during adaptation

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Abstract

Relevance . Maintaining the health of migrants while adapting to the new climatic and geographical conditions of residence is an urgent task. The impact of non-specific factors on the body of migrants in new climatogeographic conditions leads to the strain of regulatory and adaptive mechanisms, and in extreme cases to their failure. Objective - to determine the features of heart rate variability in young Tajiks, depending on the type of temperament living in Krasnoyarsk for more than a year. Materials and Methods: A study of heart rate variability in 63 Tajiks aged 18-40 years with different types of temperament, living in Krasnoyarsk for more than a year, was conducted. The types of temperament were determined by indices in accordance with the method of identifying VP-types of temperament according to E.Yu. Petrosyan, Yu. I. Savchenkov. The following indicators of heart rate variability (HRV) were evaluated: heart rate, the power of the high-frequency, low-frequency and very low-frequency spectrum (BV, MV-2, MV-1) of the HRV component, the voltage index of regulatory systems (IN), the centralization index (CI) and the activity index of regulatory systems. To assess the statistical significance of the differences between the samples, the Student’s criteria were used. Results and Discussion. It was revealed that migrants with an «intense» type of temperament after moving to a new place of residence increased the indicators of heart rate, BV and IN. At the same time, in the studied groups with a «calm» and «adequate» type of temperament, the power of BV was significantly reduced, with an increase in heart rate and CI. The conclusion is made about the influence of typological features of temperament on HRV indicators, when adapting to new climatogeographic living conditions. Individuals with an «adequate» type of temperament demonstrate the normal functioning of the adaptive capabilities of the body. In individuals with the «calm» type, an increase in the tension of the regulatory mechanisms was revealed. Conclusion . Significant changes in HRV are demonstrated by migrants with an «intense» type of temperament, in particular, they are characterized by a high voltage of regulatory mechanisms.

About the authors

Sarvar S. Raufov

Krasnoyarsk State Pedagogical University

Author for correspondence.
Email: raufov.sarwar2016@yandex.ru
ORCID iD: 0000-0002-9224-2589
Krasnoyarsk, Russian Federation

Sergey N. Shilov

Khakass State University

Email: raufov.sarwar2016@yandex.ru
ORCID iD: 0000-0001-9132-6652
Abakan, Republic of Khakassia, Russian Federation

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Copyright (c) 2021 Raufov S.S., Shilov S.N.

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