criteria for measurement of BMR and RMR

Last reviewed 01/2018

BMR and RMR are standardly measured:

  • ideally, sleeping
  • fasted
  • at normal body temperature
  • in a thermally-stable state: no physiological change in basal metabolic rate due to adaptation to relatively cold or hot external temperature

Additionally, BMR requires measurement in the early hours of the morning when metabolism is minimal. This makes it a less practical index than RMR.