V.F. Kirichuk, T.S. Velikanova, V.V. Velikanov, A.P. Krenitsky

It was found in literature indication on essential dependence of efficiency of electromagnetic influence on lines of factors, in particular, from a choice of a mode of an irradiation. In a number of clinical researches it is shown, that fractional modes UHF-irradiations possess the greater efficiency in comparison with corresponding continuous modes. In this connection series of experiments on the mail rats, exposed fractional ТHZ-to an irradiation on a background sharp immobilization stress have been lead. It is shown, that fractional ТHZ-an irradiation on nitric oxide frequencies by the common duration 5, 15 and 30 minutes in a belly aorta and a femoral artery result in full restoration broken during sharp immobilization stress of parameters of linear speed of a blood-groove. The fractional mode the general duration of 5 minutes is most effective. In a carotid of changes at fractional mode ТHZ-irradiations the general duration 5, 15 and 30 minutes in comparison with control group and group of comparison are not marked. It, probably, specifies centralization of a blood-groove during the action of stress agent - sharp immobilization stress and as result of maintenan-ceperfusion the vital body - a brain at a constant level.