Imbalances of the autonomic nervous system in people living in radioactive contaminated territories: radioactivity and vegetative imbalance

Background: the ural region is highlighted among other russian regions for its unfavorable radiaon situaon and complexity of the overall environmental situaon. the source of man-made radioacve contaminaon is the work of the mayak producon associaon. a significant radioacve contaminaon has happened as a result of several radiaon incidents in the early period of the company acvity and it has affected a territory total area of over 23,000 km2 in the chelyabinsk,kurgan and sverdlovsk regions. our primary aim is to compare the characteriscs of heart rate variability among residents of the ural region,living in the territories with different levels of radioacve contaminaon. materials and methods: the segment of the populaon exposed to increased radiaon exposure amounted to approximately 500 thousand people. we have disnguished three territories in the urals region to perform a comparave study of environmental factors (the radioacve contaminaon) on human health. two of these territories are case territories,which are exposed to environmental hazards,and one of them is the control. data were collected from 1992 to 1995. results: to assess the dependence of the state of adaptaon abilies of the organism exposed to radiaon contaminaon of the territory,we used the stress index. we determined the stascally significant influence of man-made radioacve contaminaon of the environment on the funconal adaptaon of the body. conclusion: our study showed the predominance of sympathec regulaon of heart rate,which indicates the tension of adaptaon capabilies of the organism for the populaon living in radioacve contaminated areas.