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Jason's Locomotor > Exercise: Muscle, fuels, fatigue > Flashcards

Exercise: Muscle, fuels, fatigue Flashcards

1
Q

more mitochondria in muscle good?

A

yes, more glucose disposal in response to insulin

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2
Q

Type1 fibres stain what colour after acidic?

A

dark

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3
Q

Type 2 fibres stain what colour after basic?

A

dark

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4
Q

MHC in muscle fiber immunoblotting stands for?

A

myosin heavy chain

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5
Q

which muscle fiber types have most mitochondria?

A

Type 1 >IIa> IIx

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6
Q

order of muscle fiber recruitment as more force needed?

A

Type I then IIa then IIx

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7
Q

Which fiber type has influence on DM2?

A

Type 2

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8
Q

Rate of muscle decline in disuse greatest when?

A

0-10 days

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9
Q

what is the protein synthesis and ribosome genesis molecule in the hypertrophy pathway called?

A

mTOR

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10
Q

what is Foxo?

A

involved in protein degradation pathway for muscle atrophy

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11
Q

Mitochondrial adaptation to exercise?

A
  1. more mitochondria
  2. less lactate and CHO use
  3. more fat oxidation
  4. more endurance
  5. better insulin action
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12
Q

lactate is a biomarker used for?

A

seeing if there is increased mitochondrial density

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13
Q

glycolysis and creatine phosphate is what kind of ATP generation?

A

substrate level phosphorylation

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14
Q

What is mTOR?

A

the protein synthesis and ribosome genesis molecule in the hypertrophy pathway

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15
Q

molecule involved in protein degradation pathway for muscle atrophy?

A

Foxo

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16
Q

ATP from lipids of proteins called?

A

exidative phosphorylation

17
Q

Power is?

A

how fast can you generate ATP?

18
Q

Capacity is?

A

how long and much ATP can be generated to last?

19
Q

what are fast sources of ATP?

A

Creatine phosphate

glycolysis

20
Q

what are slower but more capacitative sources of ATP?

A

CHO

FFA

21
Q

Fuels for sprinting predominantly?

A

Creatine Phosphate

Glycolysis

22
Q

fuels for endurance? most to least

A

muscle glycogen
FFA = plasma glucose
other fat sources

23
Q

what % intensity do you use mostly fats and glucose to maintain?

A

50-60%

24
Q

female who exercises has more what oxidation?

A

fat oxidation

25
Q

broad defenition of fatigue?

A

reduction in force and power generating capacity

26
Q

task specific definition of fatigue?

A

inability to maintain required or expected force of power output

27
Q

caffeine and amphetamines changes fatigue how?

A

changes perception of fatigue and pain

28
Q

muscle feedback to brain and motivation?

A

metabolic feedback from muscles

29
Q

what ingestion increases exercise capacity?

A

CHO ingestion

Jason's Locomotor (36 decks)

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