The results of a study of the level of functionality of the regulatory systems of the inhabitants of Tajikistan are presented. A comparative analysis of the indicators of variational cardiointervalometry in men and women of Tajiks is given. The aim of the study was to study the functional state of autonomic regulation in Tajiks, depending on the state of activity such as the autonomic nervous system. We examined 233 people aged 18 to 40 years. Based on the values of the stress index, variational magnitude, and the total power of the spectrum from the entire population under study, three groups of individuals were formed: vagotonics, normotonics, and sympathotonics. Indicators of variational cardiointervalometry were recorded using a psychophysiological testing device UPFT-1/30 “Psychophysiologist” in the sitting position with a cycle of 128 cardiointervals for 5 minutes. The indicators of variational cardiointervalometry in men are higher compared to women. Differences in the activity of regulatory systems and assessment of the functional state in men are significantly different from indicators of women. Significant differences are noticeable only in the group of vagotonics. Both among men and among women, a greater number of subjects with a hyperactivity reaction were revealed. In 37 % of the examined, regardless of gender, the state of the optimal working voltage of the body was revealed. It has been established that sympathotonics dominate among women, this may indicate lower adaptive abilities of women, which is a sign of greater energy expenditures during adaptation, and normotonics dominate among men. When compared with indicators of the functioning of the body of men and women, features of the deterioration of blood circulation regulation and a decrease in the level of physiological health in vagotonic men were revealed.

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 Students 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.