for Measurement of ForearmBlood Volume and Flow

eripheral capacitance and resistance vessels act as preload and aftenload for the heart and influence cardi ac function. Accordingly, evaluation of the condition of both sets of peripheral vessels is indispensable for an understanding of integrated cardiac function. Venous occlusion plethysmography is a conventional, noninva sive method for measuring peripheral hemodynamics; the water-filled method (1), strain-gauge method (2—5),and impedance method (6—10)are commonly used. However, these methods have drawbacks, such as requiring application ofthe detector directly to the area being measured and not revealing the absolute volume of blood in this area. Clements et al. (11) devised a new technique for measuring peripheral hemodynamic