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Tolerance of physical load was investigated in 50 convalescents of hemorrhagic fever with renal syndrome (HFRS) at bicycle exercise test (BET). Calculations were made of maximal oxygen consumption and energy consumption at the threshold load. It is shown that for three months after HFRS physical performance of the convalescents remained low. By the end of the expected disability objective recovery of physical performance was registered only in 33-37% convalescents. More than for 3 months disability persisted in reconvalescents engaged in professions with energy consumption above 4.1 kkal/min throughout the working day. Use of BET in the practice of medical labour expertise of HFRS convalescents provides an objective assessment of their working ability and feasible job.

A clinicofunctional analysis of the heart was made in 50 patients suffering from hemorrhagic fever with renal syndrome (HFRS) in the acute period and at the stage of outpatient rehabilitation. Comparison with healthy subjects was made by physical, ECG, echo-CG data, changes in the levels of creatinphosphokinase (MB-fraction) (CPK-MB), asparagine and alanine aminotransferase in the serum. Clinical symptoms of heart pathology, their incidence rate in different periods of the disease, dynamics of ECG deviations, state of heart chambers and left ventricular systolic function are described. The most manifest changes of the studied parameters were observed in acute disease and depended on the disease severity. The detected changes in the end part of the ventricular complex on ECG associated with a relative depression of left ventricular systolic function as well as a rise in the level of CPK-MB indicate affection of the myocardium. Variants of combination and dynamics of the above disorders allowed to single out the most probable syndromes of heart affection in HFRS.