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In order to reveal the functional interrelationships of the main physiological characteristics of the organism with the external environment exogenous abiotic factors, as well as the evaluation of the magnetic field factor effect on the morphofunctional sta­ tus main characteristics, 18 healthy men aged 25–49 years old, residents of the North­East of Russia (Magadan) were examined. Parameters of the cardiovascular system, external respiration and gas exchange, as well as heart rate variability were studied. Environmental factors, such as air temperature, wind speed, air humidity, atmospheric pressure and K­index were separately an­ alyzed. Identified were different types of responses by human organisms to the influence of environmental abiotic factors, de­ pending on the initial vegetative tone of the examinees. Thus, the individual profile of the subject with a sympathotonic type of au­ tonomic regulation was characterized by a pronounced dynamics of the studied indicators in response to the influence of environ­ mental factors. At the same time, for the subjects with normotonic and vagotonic initial tone, positive air temperatures were found to be the most stressful factors. The obtained data indicate that the most pronounced stress of the functional state is observed with the synergistic action of the temperature factor and the perturbed magnetic field (according to the K­index data). The conducted correlation pleiades analysis have made it possible to establish an increase in the surveyed men’s level of systolic and diastolic arterial pressure in response to the voltage of the Earth's magnetic field. It has been also revealed that the effect of the Earth's abiotic factors on the heart rate variability parameters is manifested in the activation of the parasympathetic part of the autonomic nervous system, which is most beneficial for the organism while forming response compensatory­adaptive reactions.

cardiometry

Peculiarities of morphological and functional characteristics of residents of the North-East of Russia, depending on background meteorological and heliomagnetic indices