Determination of Body Volume by Helium Dilution: With Special Reference to the Influence of Gases, Heat, and Moisture Emitted by Transpiration and Respiration

Abstract

A modification of Siri's method for body volume determination by helium dilution has been developed, the principal advantage of which is that unreliable temperature measurements are eliminated through thermo-static regulation. The body volume can then be determined directly from a calibration curve without the need for temperature readings.