Work
Product of force and distance
Power
Amount of work performed per unit of time
Net efficiency
Ratio of work output divided by the energy expenditure above rest
Direct calorimetry
Measure of metabolic rate via heat production
Indirect calorimetry
Measure of metabolic rate via VO2
Relative VO2
The consumption of oxygen per kg of body mass
1 MET equivalent
A unit of resting metabolic rate