Week 2: Energy intake and expenditure Flashcards
What are the four types of energetic efficiency?
Gross Net Work Delta
What is the energy in?
Food Alcohol
What is the energy out?
Basal metabolism (60-75%) Thermogenesis (10%) Physical activity (15-30%)
What happens if your total daily energy intake is equal to your total daily energy expenditure?
Your body weight will remain the same
What happens if your total daily energy intake is different to your total daily energy expenditure?
You will gain or lose weight
What percent of energy expenditure is used by the liver?
27%
What percent of energy expenditure is used by the brain?
19%
What percent of energy expenditure is used by the skeletal muscle?
18%
What percent of energy expenditure is used by the kidney?
10%
What percent of energy expenditure is used by the heart?
7%
What percent of energy expenditure is used by the other?
19%
What does TDEE mean?
Total daily energy expenditure
What does ADMR stand for?
Average daily metabolic rate
What does BMR stand for?
Basal metabolic rate
What does RMR stand for?
Resting metabolic rate
What does TEF stand for?
Thermic effect of food
What does DIT stand for?
Diet induced thermogenesis
What does TEE stand for?
Thermic effect of exercise
What does EEA stand for?
Energy expenditure for physical activity
What are the indirect calorimetry measurement of energy expenditure?
Respiration chamber Douglas bag Breath by breath analysers
What do you need to consider when looking at resting metabolic rate?
Last meal (composition, TEF) Protein in diet FFM Exercise in 24h before Transport to measuring venue
What does it mean if the RQ value is above 1?
The body is starting to work anaerobically
What does the RQ value show?
The ratio of CO2 production to O2 consumption
What is the most efficient way of using O2 to produce energy?
Glucose oxidation
