Energy homeostasis and energy balance - Energy expenditure

10 important questions on Energy homeostasis and energy balance - Energy expenditure

What is basal metabolic rate (BMR)?

energy needed for the basal maintanance of the body 60%-70%

What is diatary induced thermogenesis?

Energy that the body needs for absorption and digestion of food. 10% of energy.

How do you calculate the physical activity level (PAL)?

PAL = total energy expenditure / the basal metabolic rate
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What are the PAL values for a vary active, inactive and normal person?

active (very): Pal = 2
inactive: Pal < 1.4
normal: Pal = 1.6-1.7

What is the physical activity ratio (PAR)?

The energy cost of an activity expressed as a multiple of basal metabolic rate. So how much more energy do you need compaired to laying in bed

What is the PAR for lwo acitve, intermidiat active and high acitve people?

Low active: 1.0 -1.4
Intermediat: 4
High: 10

How do you determon how much calories there are burnt?

It is determent by how much oxygen is consumed.
1) oxygen concetration in air
2) volume of air/minute *1.8 = kcal/min

What is the growth energy?

The net energy needed to make new tissue. NOT to confuse with metalisbale energy

How many kcal do you have stored in fat?

90.000 kcal (30 days of food)

How many kcal do you have stored in muscles and how much of that can you use?

36000 stored, and you can use 12000

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