Eisenberg B M, Vollmar R, Linss G, Fürst G, Stern L
Z Gesamte Inn Med. 1987 May 15;42(10):274-6.
77 unselected patients were examined synchronously by impedance and radiocardiography in recumbent position during dynamic exercise. In all cases the load of evaluable impedance curves was possible till 100 watts. Stroke volume, estimated by impedance cardiography, is lower about 30% at rest and during exercise compared to its estimation by radiocardiography. But the percentual increase during exercise is not significantly different between the methods. The stroke volumes, estimated by both methods, correlate significantly at rest and during exercise. This fact shows the usefulness of impedance cardiography for estimating central haemodynamics during dynamic exercise.
