Physiological Mechanisms of Arctic Aboriginal Peoples Organism Adaptive Reactions Formation during the Winter Period

Kolosova O.N., Belchusova E.A., Nikolaeva E.N.

 

On the basis of a special study of blood and cardiac rhythmthe features of physiological mechanisms of formation of the nonspecific adaptive reactions (NAR) of an organism of Evenkimen constantly living in the territory of the OlenekskyEvenki national district  in various age groups are analyzed. The study was conducted in winter months (December-February) 2013-2014 during the polar night season. Two age periods with the maximum peaks of adverse adaptive reactions of the Evenki men are revealed: early adult age (B2; 25-34 years old) and late adult age (B4; 51-64 years old) with different physiological mechanisms of formation. In B2 group the peak of the reactions is caused bystrengthening of duplication by adaptation processes from the central regulation (intersystem type of regulation). In B4 group the peak is stipulated by the intrasystem reorganizations and strengthening of a tone of the sympathetic nervous system.

 

Key words: Arctic, indigenous ethnic groups, chronophysiology, adaptation, ecology, stress, variability of a cardiac rhythm, nonspecific adaptive reactions.

Science and Education, 2015, No.2, pp.107-112