Exam 3: Protein: influences of training on dietary requirements and roles of dietary protein and amino acid supplements

Question 1

Protein requirement for strength athletes:

recommended range?

Answer 1

about 1.2g/kg - 1.8g/kg

Question 2

T/F: Strength athletes protein requirements are highly used for energy.

Answer 2

False

Question 3

Strength athletes protein requirements are at increased need mainly due to

a. energy
b. tissue synthesis
c. hormone balance
d. energy and synthesis demands

Answer 3

b. tissue synthesis

Question 4

Protein requirement for endurance athletes:

recommended range?

Answer 4

1.0 g/kg - 1.6 g/kg

Question 5

T/F: endurance athletes protein requirements needs increased for energy only

Answer 5

False

energy and synthesis demands

Question 6

Strength athletes protein requirements are at increased need mainly due to

a. energy
b. tissue synthesis
c. hormone balance
d. energy and synthesis demands

Answer 6

d. energy and synthesis demands

Question 7

Protein requirement for endurance athletes:

ultraendurance athletes?

Answer 7

15 g/kg - 1.7 g/kg

Question 8

endurance athletes and strength athletes both require ________ of calories

a. 12% - 15%
b. 16% - 19%
c. 20% - 23%
d. 24% - 27%

Answer 8

12% - 15%

Question 9

T/F: endurance athletes and strength athletes both should select a high quality protein

Answer 9

True

Question 10

List Key Protein Function

Answer 10

• enzyme
• peptide hormones
• structural proteins
• transport proteins
• immunoproteins

Question 11

which stomach enzymes digest protein

Answer 11

HCL and pepsin

Question 12

where does most of protein digestion occur?

Answer 12

small intestine

Question 13

In what form are proteins absorbed

Answer 13

amino acids, dipeptides, and tripeptides

Question 14

AA used or transported to liver

Question 15

what are the metabolic fate?

Question 16

cells synthesize proteins and important non-protein, nitrogen-containing compounds

Question 17

AA degradation: N forms urea and other waste-eliminated mainly by kidney

Question 18

carbon skeleton used for fat or carbohydrate production

Question 19

Are proteins a key contributor energy source?

a. yes
b. no
c. usually not
d. usually are

Answer 19

usually not a key contributor

Answer 20

increases with duration and intensity

Question 21

BCAA directly by muscle

Question 22

other AA converted to ______, _________, or___________

Answer 22

fat, ketones, or carbohydrate

Question 23

how does aerobic training effects the use of protein?

Answer 23

increased synthesis of mitochondria and oxidative enzymes

Question 24

how does anaerobic training effects the use of protein?

Answer 24

increased synthesis of contractile proteins

Question 25

T/F: protein supplements have a clear advantage over regular food proteins

Answer 25

False

Question 26

T/F: protein supplements have a clear advantage over regular food proteins, except for sometimes convenience

Answer 26

True

Question 27

T/F protein supplements can help if athlete can’t eat enough food

Answer 27

True

Question 28

does the kind of protein supplement matter?

Answer 28

relatively little research available

Question 29

fast vs slow protein

Question 30

plant vs animal protein

Question 31

mix of proteins

Question 32

what does the overall research say about protein supplements?

Answer 32

overall data arent clear and real food often tastes better and is cheaper

Question 33

does time matter when taking protein supplements?

Answer 33

maybe but not clear when is best

Question 34

one bout of exercise can increase protein synthesis up to

Answer 34

2 days

Question 35

highest amino acids and anabolic hormones occur within ______ after intake

Answer 35

1- 3 hours

Question 36

T/F: higher muscle protein synthesis with post-workout protein intake than no protein

Answer 36

True

Question 37

T/F: post-workout protein intake is best 2 hours after

Answer 37

False

Immediately may be better than 2 hours after

Question 38

T/F protein just before exercise may be even better

Answer 38

True

Question 39

CHO minimally stimulates protein synthesis staggereing

Question 40

before bed

Question 41

midnight snack

Answer 41

q

Question 42

When CHO has the same calories as protein, studies show there is no difference in endurance

Question 43

Amino acids are best absorbed as dipeptides and tripeptides

Question 44

Oversaturation of carriers may lead to deficiency due to an imbalance

Question 45

Essential amino acid mixtures: as little as 6g after exercise can increase muscle protein synthesis