Week 5 - Metabolic Adaptations to Exercise Training Flashcards

1
Q

what hormones are involved in exercise response?

A

norepinephrine, epinephrine, growth hormone, adrenocorticotrophic hormone

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2
Q

what happens hormonal response when exercising?

A

increase

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3
Q

what effect does endurance training have on rate of muscle glycogen and blood glucose utilisation?

A

it decreases the rate of both

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4
Q

what happens GLUT-4 during exercise?

A

its translocation decreases

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5
Q

how does endurance training effect glycogen reserves in muscle and liver?

A

it increases them

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6
Q

what effect does endurance training have on the oxidation of lipids?

A

it increases the capacity of lipid oxidation
release of fatty acids
fat storage
glycogen sparing effect
lower RER values

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7
Q

name 3 key glycolytic enzymes

A

glycogen phosphorylase, phosphofructokinase, lactate dehydrogenase

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8
Q

what effect does glycogen phosphorylase have on exercise?

A

breaks down glycogen quickly - energy source

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9
Q

what effect does phosphofructokinase have on exercise?

A

its activity increases, more ATP produced

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10
Q

what effect does LDH have on exercise?

A

endurance training reduces activity, decrease in lactate, increase in pyruvate
strength and sprint training has opposite effect, increase of LDH

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11
Q

what happens mitochondria with increased aerobic endurance training?

A

they increase in concentration

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12
Q

what metabolism is favoured in endurance trained people?

A

lipid

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13
Q

what metabolism is favoured in high intensity individuals? (not resistance training)

A

carbohydrate

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14
Q

what is maximal oxygen uptake?

A

VO2 max

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15
Q

what happens VO2max with training?

A

it increases

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16
Q

what happens excess post-exercise oxygen consumption with endurance training? EPOC

A

it decreases

17
Q

what effect does endurance training have on lactate production?

A

decreases rate

18
Q

why does endurance training decrease rate of lactate production?

A

less carbohydrate being used
LDH activity decreases, Pyruvae dehydrogenase activity increases
reduced neurohormonal response

19
Q

what happens lactate clearance during endurance training?

A

increase

20
Q

what occurs in relation to ATP and PCr concentration in muscle after anaerobic training?

A

it increases

21
Q

how long does it take to reverse/ de-train

A

days to weeks

22
Q

how does detraining influence metabolism?

A

increased reliant on carbohydrates
reduced GLUT-4 content
decreased glycogen storage

23
Q

how does detraining effect enzyme activity?

A

reduction in oxidative enzyme activity

24
Q

how does detraining affect oxygen utilisation?

A

VO2 max declines

25
Q

how does detraining effect lactate accumulation?

A

lactate levels in blood increase
maximal lactate values decrease