Cunningham reported various equations for estimating the resting energy expenditure (REE) and basal metabolic rate (BMR) for adults. The author is from Brown University.
Patient selection: normal adult
Parameters:
(1) lean body mass in kilograms (LBM)
(2) fat-free mass in kilograms (FFM)
(3) age in years
resting energy expenditure in kcal per day =
= (21.6 * (FFM)) + 370
basal metabolic rate in kcal per day =
= (21.6 * (LBM)) + 501.6
simplified basal metabolic rate in kcal per day =
= (22 * (LBM)) + 500
basal metabolic rate in kcal per day =
= (21 * (LBM)) + 601.2 - (2.6 * (age))
where:
• Lean body mass should exceed fat-free mass.
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