The Relationship of the Total Hemoglobin or Total Blood Volume to the Pulse Frequency and Filling Rate of the Left Ventricle in Standing Position

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Abstract
Summary.: A statistical analysis, with correlation determination with several variables, of a test group consisting of 101 men, women, and children, indicates that a correlation exists between the pulse frequency in erect and supine positions, and the difference thereof, on the one hand and the total hemoglobin and the height on the other. A high correlation exists between the ratio of height to total hemoglobin and the pulse frequency in standing position.Electrokymographic records of the diastolic filling of the left ventricle show that the filling rate is decreased in the erect position especially in tall subjects with average or lower than an average hemoglobin values, and that this is closely bound to the amplitude of the blood displacement.The observations made are in agreement with the hypothesis that the pulmonary blood vessels function as a blood depot, the content of which is dependent on the total blood volume and the blood contents of the systemic circulation, and that this function has a relative significance for the filling and stroke volumes of the left ventricle as well as for the adaptation of the circulation to changes of position and physical work.
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