Related Experiment Video
Updated: Aug 1, 2026

Determining the Contribution of the Energy Systems During Exercise
Published on: March 20, 2012
Derivation of formulae used to calculate energy expenditure in man
1Physiology Division, Rowett Research Institute, Bucksburn, Aberdeen, UK.
Abstract:
The origins of the data used to construct some of the formulae in current usage for the calculation of energy expenditure are discussed. The differences in expenditure calculated by the various formulae cover a range of about 3 per cent. This error is large in relation to long-term studies of energy balance, and to the accuracy attainable with modern respiration chambers. The differences stem in part from the use of inappropriate original values and in part from errors in arithmetic. A new set of source data and a derived formula are presented.
More Related Videos
06:57Determining Basal Energy Expenditure and the Capacity of Thermogenic Adipocytes to Expend Energy in Obese Mice
Published on: November 11, 2021
04:54Using a Combination of Indirect Calorimetry, Infrared Thermography, and Blood Glucose Levels to Measure Brown Adipose Tissue Thermogenesis in Humans
Published on: June 2, 2023
Related Concept Videos
Dimensional Analysis
Conversion Factors and Dimensional Analysis
The unit...
Experimental Determination of Chemical Formula
Calculating Standard Free Energy Changes
Kinetic Energy for a Rigid Body
Energy Balance
Metabolic Rate
The Basal Metabolic Rate (BMR) measures the energy expended at rest.
Several factors influence the...