Abstract
The age dynamic of parasympathetic and sympathetic activity of autonomous nervous system (ANS) in the heart rate (HR) regulation is considered in the article from the perspective of allostasis theory. Two groups of people are compared: working residents of Arctic region (aged from 20 till 75 years old, divided in 10-years age cohorts, total 267 people) and working residents of the Central Part of Russia (116 people). The model of allostatic influence on the organism's regulatory systems in the process of adaptation to the conditions of high latitudes is studied compared to clustered data of HR analysis recorded in the background. The model of allostasis implies to support an organism's inner stability not from the perspective of body balance control but through changes preservation according to external conditions. «The adaptation cost» as a result of allostaric load is described by means of peculiarities of HR regulation in indifferent groups of surveyed. A method of human adaptation potential assessment by means of the analysis of ANS parasympathetic parts contribution to HR regulation is rested and discussed in the article. This approach allows to reveal risk group candidates for adaptation process breakdown.
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