Decreased basal metabolic rate is seen in:
Basal Metabolic Rate—The Minimum Energy Expenditure for the Body to exist even when a person is at complete rest, considerable energy is required to perform all the chemical reactions of the body. This minimum level of energy required to exist is called the basal metabolic rate (BMR) and accounts for about 50 to 70 percent of the daily energy expenditure in most sedentary persons. Because the level of physical activity is highly variable among different persons, measurement of the BMR provides a useful means of comparing one person’s metabolic rate with that of another.
Decreased basal metabolic rate is seen in obesity. In the rest of the three conditions increased BMR is seen.
Reference: GUYTON AND HALL TEXTBOOK OF MEDICAL PHYSIOLOGY, THIRTEENTH EDITION(INTERNATIONAL EDITION ) page no 907
Obesity
Hyperthyroidism
Feeding
Exercise