Working under water is one of the most complicated areas of human activity and health requirements of this category of professionals are the most stringent. The importance and the need for early detection and assessment of negative symptoms in psychosomatic disorders, reducing the level of reliability of professional activity, indicated by many experts in the field of emergency medicine. The cardiovascular system responds to a stressful situation one of the first. We have analyzed the performance of the cardiovascular system ofoperators underwater technical systems. To determine the degree of influence of occupational factors were surveyed 22 operators of underwater technical systems, whose average age is 38 ± 6.9 years, height 180 ± 6,0 cm, weight 89±15,4 kg. The study systemic hemodynamic parameters in operators of underwater technical systems has shown that already in the first days of isolation systolic pressure increased significantly. This suggests that the major stress factor - entering the insulation. It was found that the higher the value average hydraulic pressure is always accompanied by high values of systolic pressure. This may be indicative of changes in precapillary bed and the risk of hypertension. Revealed hypertensive character of systemic hemodynamics reaction in the process of isolation may indicate a marked depletion of reserve capacity of regulatory mechanisms and reducing the functional reliability in circulatory system of the operators underwater technical systems.