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Nutrition and metabolism > Week 2: Energy intake and expenditure > Flashcards

Week 2: Energy intake and expenditure Flashcards

1
Q

What are the four types of energetic efficiency?

A

Gross Net Work Delta

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2
Q

What is the energy in?

A

Food Alcohol

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3
Q

What is the energy out?

A

Basal metabolism (60-75%) Thermogenesis (10%) Physical activity (15-30%)

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4
Q

What happens if your total daily energy intake is equal to your total daily energy expenditure?

A

Your body weight will remain the same

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5
Q

What happens if your total daily energy intake is different to your total daily energy expenditure?

A

You will gain or lose weight

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6
Q

What percent of energy expenditure is used by the liver?

A

27%

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7
Q

What percent of energy expenditure is used by the brain?

A

19%

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8
Q

What percent of energy expenditure is used by the skeletal muscle?

A

18%

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9
Q

What percent of energy expenditure is used by the kidney?

A

10%

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10
Q

What percent of energy expenditure is used by the heart?

A

7%

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11
Q

What percent of energy expenditure is used by the other?

A

19%

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12
Q

What does TDEE mean?

A

Total daily energy expenditure

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13
Q

What does ADMR stand for?

A

Average daily metabolic rate

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14
Q

What does BMR stand for?

A

Basal metabolic rate

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15
Q

What does RMR stand for?

A

Resting metabolic rate

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16
Q

What does TEF stand for?

A

Thermic effect of food

17
Q

What does DIT stand for?

A

Diet induced thermogenesis

18
Q

What does TEE stand for?

A

Thermic effect of exercise

19
Q

What does EEA stand for?

A

Energy expenditure for physical activity

20
Q

What are the indirect calorimetry measurement of energy expenditure?

A

Respiration chamber Douglas bag Breath by breath analysers

21
Q

What do you need to consider when looking at resting metabolic rate?

A

Last meal (composition, TEF) Protein in diet FFM Exercise in 24h before Transport to measuring venue

22
Q

What does it mean if the RQ value is above 1?

A

The body is starting to work anaerobically

23
Q

What does the RQ value show?

A

The ratio of CO2 production to O2 consumption

24
Q

What is the most efficient way of using O2 to produce energy?

A

Glucose oxidation

25
Q

What does metabolic equivalents (METs) mean?

A

A generic classification of exercise intensity and daily living

26
Q

What are the methods used to track energy intake?

A

24h recall 3 day food diary 7 day food diary Food frequency dairy Diet history

27
Q

What does the formula calculate?

A

Gross efficiency

28
Q

What does the formula calculate?

A

Net efficiency

29
Q

What does the formula calculate?

A

Work efficiency

30
Q

What does the formula calculate?

A

Delta efficiency

Nutrition and metabolism (25 decks)

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