Energy balance

Question 1

Why do humans use fat as the major energy storage form and not carbohydrates?

Answer 1

Fat holds about 33 KJ/g.
Carbohydrates bind a lot of water as storage and only holds 4KJ/g.
Fat is more dense i energy

Question 2

What is BMR?

Answer 2

Basal metabolic rate. The energy required for the work of vital functions:
o Maintenance of ionic equilibrium across cells
o Cell and protein turnover
o Respiratory and cardiovascular functions

Question 3

How much of the daily energy expenditure is BMR?

Answer 3

BMR is 60-75% of the total daily expenditure

Question 4

What are factors that determine the BMR?

Answer 4

height, gender and age.
Gender because woman has less lean body mass, which influences the BMR

Question 5

What are factors that can influence BMR?

Answer 5

Influenced by food intake and the amount of lean body mass. Temperature decrease, smoking and stress will result in a higher BMR

Question 6

What is NEAT?

Answer 6

Non-exercise activity thermogenesis.
Involves maintaining posture, fidgeting and activity during the day where you e.g. choose the bike over the bus, the stairs over the escalator