International Union for Circumpolar Health Ministry of Public Health and Social Development of RF Russian Academy of Medical Sciences Siberian Branch of Russian Academy of Medical Sciences Siberian Branch of Russian Academy of Sciences Medical Polar Fund “Science” The Northern Forum

Abstracts

Ecology and adaptation (medical ecology)

As established, a long-term residing in severe climatic conditions of the Extreme North does not form in humans the state of a completed adaptation. It results in a biosocial fee for adaptive changes that has become extremely high and causes negative disorders in human health and functional reserves. In this matter, the health of a children population is the most impartial index of the habitat discomfort level.

Sixty six teenagers aged 14-15, who were residents of Magadan town (region center, seaside area) and the settlements located in difficult of access intracontinental region were comparatively examined to make a complex health state estimation. We evaluated a heart rate structure at rest and during an orthostatic test, psychophysiological status with “Psychotest” complex set, and personal psychological profiles with a questionnaire method. Somatic parameters were evaluated with the apparatus programmed complex of “Luchezar” that was developed with ISC “Arktika” and recommended by RF Health Care Ministry for public screening and monitoring.

The analysis of heart rate statistic and spectral-wave characteristics showed a more than 1.5 times increase of regulatory systems’ tension in girls and boys of the intracontinental settlements. In them, the stochastic models describing a time component of R-R intervals testified to the high order autoregression models prevailing on base of activation in structures of the central contour of regulation. The results obtained suggested the lowered physiological reserves of cardiohemodynamic systems in the settlement children compared to the children of Magadan. The psychophysiological parameters showed themselves similarly. In the settlement teenagers, the more pronounced anxiety, asthenia, neurotic states, and a decrease in psychic potential were observed. In addition, the relationship between some psychological and physiological factors was revealed, in boys only, suggesting the lowered psychophysiological reserves and adaptation abilities in intracontinental settlements children.

As found from our complex investigation, the duration of adaptation has no positive influence on health characteristics. That is, the biosocial fee and exhaustion of functional reserves exceed the positive adaptation effects acquired by an organism. In this regard, health care under the Extreme North conditions proved to be not only a medic problem but a complex one.

Note. Abstracts are published in author's edition

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Last update: 06-Jul-2012 (11:52:05)