Fig. 1

Schematic representation of the experimental procedures utilized to validate the new whole room indirect calorimeter, specific for measuring resting metabolic rate (RMR_WRIC), against a ventilated hood connected to a metabolic cart (VH_MC). Accuracy and precision of each methodology was first obtained through ethanol (VH_MC) and propane (RMR_WRIC) combustion tests and comparison to their related stoichiometries. Finally, both methodologies were utilized for measurement of resting metabolic rate in 40 healthy adult subjects