Determination of the basal metabolic rate of humans with a whole

Details Determination of the basal metabolic rate of humans with a whole Determination of the basal metabolic rate of humans with a whole

1981-02-27

1983-06-07

Howell, Kyle L.

Surgery

Truss

Pad

128736, 374 31, A61B 500

Patent

active

043866042

ABSTRACT:
The basal metabolic rate (BMR) of a human subject is measured with the subject reclining in a non-adiabatic whole-body calorimeter. Heat losses which occur through the uninsulated wall of the calorimeter chamber during the measurement period are determined in a preliminary calibration step, in the absence of the subject. The BMR measurement is simply made, requiring only the determination of the ambient air and the calorimeter chamber inlet air temperatures, the change of outlet air temperature with time (open circuit), air flow rate, and relative humidity. The use of insulation, sensors in the calorimeter wall and of a circulating water stream to measure temperature increase are unnecessary.

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