Lesson 2 - Metabolism

Question 1

What is meant by ‘metabolism’

Answer 1

Referred to the chemical processes that occur in the body to maintain life, refers to the breakdown of food and its transformation into energy

Question 2

What two stages make up metabolism

Answer 2

Anabolism (build up of substances) and catabolism (breakdown of substances)

Question 3

What does BMR stand for

Answer 3

Basal Metabolic Rate

Question 4

What is the calculation to work out your BMR

For both male and female

Answer 4

BMR for Men = 66.5 + (13.75 x weight [kg]) + (5.0 x height[cm]) − (6.76 x age [years])

BMR for Women = 65.5 + (9.5 x weight [kg]) + (1.85 x height [cm]) − (4.7 x age [years])

Question 5

What are the multipliers for each activity level

Answer 5

Sedentary - BMR x 1.2
Little exercise - BMR x 1.375
Moderate - BMR x 1.55
Heavy - BMR x 1.725
Very heavy - BMR x 1.9

Question 6

What are the 4 contributors to energy expenditure

Answer 6

Resting Metabolic Rate (RMR)

Dietary thermogenesis (DT)

Physical activity (PA)

Adaptive thermogenesis (AT)

Question 7

What is a bio-electrical impedance analysis (BIA)

Answer 7

Standard technique used to measure body fat percentage, in which electrodes are fitted across the body transmitting a low frequency current which determines what resistance is given by both muscle and fat