Estimation of Energy Expenditure

Question 1

What percentage of daily energy expenditure is BMR/RMR?

Answer 1

60-80%

Question 2

What percentage of daily energy expenditure is thermal effect of food (TEF)?

Answer 2

6-10%

Question 3

What percentage of daily energy expenditure is thermal effect if activity (TEA)?

Answer 3

vary%

Question 4

Difference between RMR and BRM

Answer 4

RMR measurements are typically taken under less restricted conditions than BMR

Question 5

BMR/RMR influencing factors

Answer 5

Age, sex, body size, nutritional and hormonal status, activity levels

Question 6

Indirect calorimetry

Answer 6

Measurement of heat produced, determined of the amount of oxygen consumed and the amount of carbon dioxide eliminated

Question 7

Direct calorimetry

Answer 7

Measurement of the amount of heat produced by a subject enclosed within a small chamber

Question 8

Equations for estimating RMR/BMR

Answer 8

Harris-Benedict (1919) equation if mass, age, sex, and stature of the participant is known.

Schofield (1985) equation if mass, age and sex of the participant is known.

Henry (2005) equation if mass, age, sex, and stature of the participant is known.

Question 9

Estimation for TEA (thermic effect of activity)

Answer 9

Physical Activity Levels (PALs);
X BMR (multiples of BMR) using PALs;

Metabolic Equivalent of Task (METs).
1 MET = 3.5 ml·kg·min-1 of oxygen

Question 10

Equation for Kcals to KJ and KJ to MJ

Answer 10

Kcal x 4.186 = KJ

KJ/1000 = MJ

Question 11

Thermic effect of protein?

Answer 11

27.5%

Question 12

Thermic effect of carbs?

Answer 12

7%

Question 13

Thermic effect of fat?

Answer 13

2.5%

Question 14

Total Daily Energy Expenditure (TDEE) equation?

Answer 14

TDEE = BRM/RMR + TEA + TEF