The Katch-McArdle Formula is a slightly different formula and uses lean body mass which the other equations don’t use.Īlso known as metabolism calculator. After that, the Mifflin-St Jeor Equation was presented and was more precise than the revised equation of Benedict. The Harris-Benedict Equation was the earliest equation introduced and used for six years from 1984 to 1990. There are three equations most abundantly used for BMR calculations which are stated below: Depending on the activity, BMR caloric daily need is between 1.2 and 1.9. Basal metabolism is the largest component that consumes most of the calories.
For an accurate measurement of BMR rate a person’s sympathetic nervous system must be inactive means the person must be completely at rest. Measuring basal metabolism requires strict measures to be met. In the state of rest, the energy is mainly used by the main organs like kidneys, liver, heart, skin, and lung. In other words this is the calculation of energy consumed by an organism at rest just like gas consumed by a car while parked. Basal metabolic rate (BMR) is the amount of energy consumed per unit time by the endothermic organisms at rest in a moderate temperate atmosphere and when the metabolic system is inactive. Energy is consumed by the body whether at rest (sleeping) or not performing any task.
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