Age and Regional Changes in Critical Physiological Parameters of the Cardiovascular System of the Human Organism

Abstract

The purpose of this work is to study age-related changes in the critical values of blood pressure, heart rate and human temperature during the transition from the southern to the northern population groups. Volunteers of male and female (age from 17 to 79 years) of middle Russia (Moscow and the region), African countries and northern peoples of Siberia (Yakuts) took part in the work. Thermometry (thermometer in the armpit basin, 10 min) and tonometry (automatic tonometer «UA-787» of firm «AND ID Medical», Japan) were used as research methods. Age-related changes in the critical values of systolic and diastolic arterial blood pressure, heart rate and body temperature were established. Regional changes in critical physiological parameters associated with the regulatory influence of the autonomic nervous system (sympathetic and para- sympathetic divisions) on the cardiovascular system are identified as one of the main compensatory and adaptive systems of the organism that participate in the processes of human adaptation to changes in envi- ronmental conditions.