Question

the rate at which a person uses energy when the body is at rest

Answer 1

Answer: Basal metabolic rate (BMR)

Explanation: BMR is the number of calories required to keep your body functioning at rest. BMR is also known as your body's metabolism; therefore, any increase to your metabolic weight, such as exercise, will increase your BMR.

Answer 2

On average for a mildly active person, about 60% of the body's total daily energy expenditure is due to resting metabolism, about 32% of the body's energy expenditure comes from physical activity and another 8% comes from the thermic effect.