[Method of integral rheography]

Tishchenko's integral rheography has no adequate metrologic basis, this shortcoming affecting the method's accuracy. Left-ventricular stroke volume is roughly proportionate to body height and weight, and the difference between the two. The modification of Tishchenko's formula taking into account this relationship clearly increases the accuracy of the method. The Kedrov and Nyboer equation, which provides the basis for the formula of stroke volume calculation, has no adequate physical rationale. Standard physical formulae seem preferable for this purpose. Different rheographs with wide frequency ranges may be used for integral rheography.