A functional status of the circulation and catecholamines excretion in air traffic controllers operating in two shifts (morning and daytime duties) and attending a Start air traffic control system have been assessed. It is shown that a correlations pattern between parameters under study is significantly altered depending on an occupational activity time. The dependence of hemodynamic shifts on an activity of hormonal and mediator components of sympathetic-adrenal system, an accomplishment of the catecholamine effects on cardiovascular activity with an involvement of alpha- and beta-adrenoreceptor system are shown.
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