Nutrition and Dietetics - Basal metabolism | 11th Nutrition and Dietetics : Chapter 9 : Carbohydrates and Energy
Chapter: 11th Nutrition and Dietetics : Chapter 9 : Carbohydrates and Energy
Basal metabolism
Basal
metabolism
Basal Metabolism is
the minimum amount of energy needed by the body for maintenance of life when
the person is at complete physical and mental rest and having normal body
temperature and in the post -absorptive state (12 hours after the intake of
last meal). Basal Metabolic Rate (BMR) is a measure of the energy required by
the activities of resting tissue.
The Basal Metabolic rate can be measured directly from the heat produced (using a Respiration Calorimeter and Metabolic Chamber) or indirectly from O2 intake and CO2 expenditure when the subject is at rest.
Basal Metabolic Rate (BMR)
The rate of energy use
for metabolism under basal metabolism is usually expressed as kcal/kg body
weight per hour. The factors affecting BMR is presented in table 9.5
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