Protein Flashcards

0
Q

Nitrogen is what separates is from…

A

Carbs and fat

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1
Q

Protein: What is it made of?

A

Carbon, hydrogen, oxygen, and nitrogen

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2
Q

Nitrogen can be removed and excreted in

A

Urine

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3
Q

The presence of the Nitrogen is what allows protein to be protected from…

A

Metabolism

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4
Q

Protein builds and repairs…

A

Body tissues and structures

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5
Q

Protein synthesizes…

A

Hormones, enzymes, and regulatory peptides

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6
Q

Protein can be used for

A

Immediate energy

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7
Q

Protein replaces…

A

Carbohydrates for energy with a low carb diet

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8
Q

Deamination

A

Taking the nitrogen off of the amino acid

Left overs are CHO

Becomes a carbohydrate

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9
Q

Protein has how many calories per gram?

A

4

Fats 9, alcohol 7, protein and carbs 4

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10
Q

Protein can also be used for _ energy.

A

Potential

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11
Q

If expenditure is not sufficient, excess protein is…

A

Deaminated, turned to fat (also made of CHO) and stored for “later”

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12
Q

Protein contributes to

A

Body fat %

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13
Q

Protein structure

A

Made up of amino acids linked together by peptide bonds

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14
Q

The body uses approximately _ amino acids to build different _

A

20

Proteins

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15
Q

Classification of amino acids

A

Essential
Nonessential
Semiessential

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16
Q

Essential proteins

A

Cannot be manufactured in the body

Must be obtained through food or supplementation (8 total)

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17
Q

Nonessential proteins

A

Manufactured naturally in the body

10 total

18
Q

Semiessential proteins

A

In between. Not essential or nonessential

20
Q

Complete proteins

A

Food that supplies all 8 essential amino acids in appropriate ratios

Meat, poultry, fish, diary
Not necessary in large amounts

21
Q

Incomplete Proteins

A

food source low or lacking in one or more essential amino acids

supplements, vegetables, fruit, grains, legumes
would have to eat more to get same amount of protein

22
Q

Factors affecting protein requirements

A

Exercise
Caloric intake
negative energy balance

23
Q

Factors affecting protein requirements: Exercise

A

increases oxidation of amino acids
increases rate of protein turnover in lean body mass during recovery
someone who does a variety of exercise needs more protein than someone who only does one type of training

24
Q

Factors affecting protein requirements: Caloric intake

A

Carbs are often referred to as “protein sparing” because in adequate amounts, protein will not be used as energy
as total energy intake decreases, protein requirements increase
only healthy for a short time under qualified supervision (otherwise high protein diets can permanently affect metabolism)

25
Q

Factors affecting protein requirements: Negative energy balance

A

dieting or hypocaloric intake
causes glycogen depletion
body forced to use protein as fuel
if protein not sufficient in diet the source is muscle tissue (gluconeogenesis)
to prevent this increased protein in required
however in this situation metabolism is negatively affected and can get worse with exercise

26
Q

High Protein Diets

A

More than 35% of total caloric intake from protein

27
Q

Side effects from high protein diets (4)

A

increased urea production
(can lead to bladder issues and kidney stones)

Possible dehydration

higher intake of saturated fat
(which can also contribute to body fat %)

decreased glycogen stores
(results in decreased performance)

28
Q

Bodybuilders only adhere to the high protein diet

A

in season (3 months or so before competition)

29
Q

Bobdybuilders diet is _and _ to continue off season

A

unhealthy and unrealistic

competitive levels of body fat are unhealthy and impossible to maintain long term

30
Q

Your clients are NOT

A

bodybuilders. Don’t treat them as such!

31
Q

Protein Intake requirements

A

10 - 35% of total caloric intake is generally recommended

32
Q

How many grams of protein per kg body weight per day for sedentary activity level (adult)

A

0.8 (0.4g/lb)

33
Q

How many grams of protein per kg body weight per day for strength athletes

A

1.2-1.7 (0.5-0.7 g/lb)

34
Q

How many grams of protein per kg body weight per day for endurance athletes

A

1.2-1.4 (0.5-0.6 g/lb)

35
Q

1 lb of muscle is approximately

A

100g of protein

36
Q

Cannot absorb _ of _ in one _

A

100g of protein in one day

37
Q

increased protein intake must happen

A

over time, not in one day or one meal

38
Q

Only need additional

A

14g of protein per day

39
Q

Must also increase TOTAL kcal intake by

A

200-400 daily (mix of protein, carbs, and fat)

40
Q

Must be participating in

A

appropriate exercise regimen

41
Q

Protein also requires _ more _ intake than carbs and fat for utilization.

A

7 times more water intake

42
Q

Protein supplementation is not

A

typically recommended for athletes

43
Q

No research evidence exists that says that protein supplements

A

increase muscle mass or enhance performance better than food

44
Q

Protein supplements may be useful for: (4)

A

Right before or right after weight training
(when consumed 2+ hours before/after to allow for digestion)
Weight loss
(to reduce sat fat intake)
Situations where meat products can’t be consumed
(vegetarians)
Weight-conscious athletes preparing for competition