True Fitness CS8 - Manual (Page 84)

METs are defined as the ratio of the current body energy
expenditure rate compared with basal metabolic rate (BMR):
METs = (VO2 rate of current state) / 3.5
where 3.5 represents BMR. VO
2
(oxygen uptake) and 3.5 are in
units of ml/kg/minute of oxygen consumed by the body. This
oxygen consumption rate corresponds to about 72 calories per
hour for a 150-pound person.
MET
Explanation
CS 8.0 Owner’s Guide 95
Appendix B