BMR and factors affecting it | Biochemistry

Quick Orientation

Section	Objective	Keywords
Definition	Understand the core idea	Basal metabolic rate (BMR), 35 to 38 Cal/sq.m/hr, 32 to 35 Cal/sq.m/hr
Physiological Basis of the Basal State	Learn the main facts and relationships	Na+-K+ pump, 50%
Measurement of BMR	Learn the main facts and relationships	25°C, Benedict-Roth apparatus, Douglas bag method
Units, Body Surface Area and Normal Values	Learn the main facts and relationships	Du Bois and Du Bois formula, 10,000, Cal/day
Clinical Correlation	Connect the mechanism to clinical findings	thyroid function, Hypothyroidism, -40%

Section

Definition

Objective: Understand the core idea
Keywords: Basal metabolic rate (BMR), 35 to 38 Cal/sq.m/hr, 32 to 35 Cal/sq.m/hr

Physiological Basis of the Basal State

Objective: Learn the main facts and relationships
Keywords: Na+-K+ pump, 50%

Measurement of BMR

Objective: Learn the main facts and relationships
Keywords: 25°C, Benedict-Roth apparatus, Douglas bag method

Units, Body Surface Area and Normal Values

Objective: Learn the main facts and relationships
Keywords: Du Bois and Du Bois formula, 10,000, Cal/day

Clinical Correlation

Objective: Connect the mechanism to clinical findings
Keywords: thyroid function, Hypothyroidism, -40%

Definition

Basal metabolic rate (BMR), also termed resting metabolic rate (RMR), is the minimum energy required to maintain life at complete physical and mental rest in the postabsorptive state, 12 hours after the last meal.