The harder a person works, the more energy is expended and the more oxygen consumed. The metabolic intensity of an activity may be expressed in terms of oxygen uptake or METs (metabolic equivalents).


1 MET = 3.5 mL oxygen per kg per minute = oxygen uptake at rest


oxygen uptake in mL per kg per minute =

= (oxygen uptake in mL per min) / (kilograms body weight)



• Use of fat free body mass may be preferable to total body weight since the latter may fluctuate with the amount of fat present (page 271).

To read more or access our algorithms and calculators, please log in or register.