week 2 exercise metabolism fuels and lactate

Question 1

what are the 3 fuels for exercise

Answer 1

CHO, AA, Fatty acids

Question 2

what is the kcal for protein

Answer 2

4

Question 3

what is kcal for cho

Answer 3

4

Question 4

what is the kcal for fats

Answer 4

9

Question 5

where is fat stored

Answer 5

adipose tissue and muscle

Question 6

where is glucose stored

Answer 6

liver and muscle

Question 7

how is cho broken down

Answer 7

glucogenesis

Question 8

how is fatts broken down

Answer 8

lipolysis

Question 9

what does amino acids use for breakdown

Answer 9

glucogenesis

Question 10

what is fats stored in

Answer 10

triglycerides

Question 11

what is the structure of glucose

Answer 11

polysaccaride

Question 12

whta is the equation for gas pulmonary exchange

Answer 12

R= VCO2/VO2

Question 12

when must measurements be taken for gasses in tissue

Answer 12

steady state

Question 13

what is the cross over concept in fuel selection

Answer 13

the shift from Fat to CHO as intensity of exercise increases

Question 14

what are the factors depending on fuel selection

Answer 14

cross-over concept, fast muscle fibers recruited, epe and lactate production,

Question 15

factors of governing fuel selection during exercise

Answer 15

Increase in lipolysis
breakdown in triglycerides
rise in blood levels

Question 16

what hormones rise in blood levels

Answer 16

epinephrine, nonepe, glucagon

Question 17

what happens to glycogen over long periods high intensity

Answer 17

decreases

Question 18

what is beta-oxidation

Answer 18

the process of oxidising fatty acids to acetyl coa

Question 19

when the rate of glycolysis decreases and there is a promotion of

Answer 19

pyruvate

Question 20

interaction of fat and cho metabolism causes a decrease in what cycle

Answer 20

Krebs

Question 21

what is needed to estimate fuel utilization in submaximal exercise

Answer 21

steady state and rer 1.5

Question 22

what are the 2 substartes used for estimation of fuels

Answer 22

fats and cho

Question 23

intensity and duration will impact what

Answer 23

what fuel source will be used

Question 24

glycogenolysis increases due to an increase in what

Answer 24

fast twitch fibers and blood epe levels

Question 25

when does the lactate threshold occur in untrained subjects of vo2

Answer 25

50-60%

Question 26

what levels do lactate occur in athletes

Answer 26

65-80% vo2 max

Question 27

if redcued cho metabolism and will also reduce what

Answer 27

fats

Question 28

what cycle break down fats

Answer 28

krebs cycle

Question 29

interaction of cho and fats will decrease the rate of

Answer 29

ATP producing impairing exercise

Question 30

more fat oxidised if we are training at what intensity

Answer 30

higher

Question 31

oxidation of fat peaks at what percent

Answer 31

60

Question 32

what oxidisation is prime just before lactate threshold

Answer 32

fat

Question 33

what is the highest storage in the body for glycogen

Answer 33

adipocytes, liver and muscle glycogen

Question 34

glygenoloysis is increased due to what

Answer 34

epe and fast twitch muscle fibres

Question 35

what are the 4 optional sources during longer exercise durations

Answer 35

glycogen, blood glucose, plasma free fatty acids and muscle triglycerides

Question 36

body will use immediate energy sources and will deplete leading to reliance on what

Answer 36

blood glucose

Question 37

what is OBLA

Answer 37

onset blood lactate accumulation

Question 38

when is OBLA occur in exercise

Answer 38

>4mmol

Question 39

factors for explanations of lactate threshold

Answer 39

low muscle o2/ hypoxia, accelerated glycolysis, glycolysis reduced rate in pyruvate and NADH produced too fast

Question 40

recruitment of fast fibres is attached to what causing lactate to form more

Answer 40

pyruvate

Question 41

reduced lactate removal from blood is due to what

Answer 41

blood flow being sent to muscle as a new priority and lactate isn't removes as effective

Question 42

lactate is fuel for what

Answer 42

the Cori cycle

Question 43

how long for lactate to be removed

Answer 43

60min

Question 44

lactate causes muscle pain t or f

Answer 44

false

Question 45

the lactate shuttle produced in one tissue is transported to another and is used as

Answer 45

an energy source

Question 46

what is the cori cycle

Answer 46

lactate is made and transported into the blood and used to help with atp