A METHOD FOR THE DETERMINATION OF HEAT PRODUCTION OVER LONG PERIODS OF TIME 1

Abstract

A maintenance diet (as nearly aa possible) was fed to 8 subjects continuing to lead their normal lives. The 24 hr. insensible weight loss was repeatedly determined and the average value for the insensible water was calculated by subtracting the difference between the weights of the C02 excreted and the 0 absorbed. The heat removed by this water vapor was close to 24% of the total heat production. The determination of the 24 hourly insensible water furnishes an accurate method for calculating the heat production of individuals leading their routine lives, and a procedure is outlined for obtaining the CO2 and O values for any type of diet.