Human Room Calorimetry

Whole room calorimetry is the most powerful research tool available for measuring the detailed time course of human energy expenditure in a natural, unrestrained setting. Energy expenditure can be monitored with excellent temporal resolution, so that the metabolic consequences of different activities can be precisely evaluated. Moreover, whole room calorimetry provides data on the research subject’s relative utilization of metabolic substrates such as fats or carbohydrates.

Whole room calorimetry has been shown in peer-reviewed scientific studies to be a significantly more accurate method of measuring human energy expenditure. For human calorimetry, whole room systems set the gold standard.

Promethion High-Definition Room Calorimetry System

The Promethion High-Definition Room Calorimetry System is capable of synchronously recording all measured parameters in a completely traceable manner. Key components of this system include the GA-3m2 triple gas O2, CO2, and ... (more)

Stable Isotope Gas Analyzer

Continuous measurement of 13C and 18O isotopes in exhaled breath The new Stable Isotope Gas Analyzer is a cutting-edge upgrade to our standard Promethion™ systems, allowing simultaneous measurement of stable isotope tracers synchronously ... (more)

Our systems are highly customizable for a broad range of applications. Let us help configure a system to meet your specific research needs.

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Relevant Publications or Links

Whyte, K. J., Rising, R., Albu, J. B., & Pi-Sunyer, X. (2013). Evaluation of a new whole room indirect calorimeter for measurement of resting metabolic rate. FASEB J, 27, 859.

Shechter, A., Rising, R., Albu, J. B., & St-Onge, M. P. (2013). Experimental sleep curtailment causes wake-dependent increases in 24-h energy expenditure as measured by whole-room indirect calorimetry. The American Journal of Clinical Nutrition, 98(6), 1433-1439.

Markwald, R. R., Melanson, E. L., Smith, M. R., Higgins, J., Perreault, L., Eckel, R. H., & Wright, K. P. (2013). Impact of insufficient sleep on total daily energy expenditure, food intake, and weight gain. Proceedings of the National Academy of Sciences, 110(14), 5695-5700.

Rising, R., Whyte, K., Albu, J., Pi-Sunyer, X. (2015) Evaluation of a new whole room indirect calorimeter specific for measurement of resting metabolic rate. Nutrition & Metabolism, 12(46)