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KINE 2P90 > Exercise Metabolism 2 > Flashcards

Exercise Metabolism 2 Flashcards

1
Q

as you reach the VO2 max you also reach the _________

A

lactate threshold

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2
Q

you may not always reach your ____ but you will always reach your _________

A

VO2 max, lactate threshold

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3
Q

lactate threshold

A

exercise intensity corresponding to blood lactate increase

- exercise intensity at which lactate appearance exceeds lactate removal

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4
Q

OBLA

A
  • onset blood lactate accumulation

- objective standard for increasing blood lactate

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5
Q

the rate of lactate _____ vs the rate of lactate _____, represents how ________

A

appearance, removal, how much of the “burn” you feel

- too much lactate build up if it appears more than it can be removed

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6
Q

lactate shuttle is

A

lactate –> pyruvate

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7
Q

Cori Cycle is

A

lactate to glucose

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8
Q

lactate is a valuable fuel during ______

A

recovery, and prolonged exercise

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9
Q

when is lactate least important

A

during high intensity exercise

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10
Q

which fibers export lactate across the membrane

A

Type IIx

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11
Q

which fibers import lactate across the membrane

A

Type I and Type IIa

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12
Q

the lactate shuttle

A

the formation of lactate in one cell compartment for use in another cell compartment

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13
Q

MCT

A

monocarboxylic transporters

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14
Q

what MCT is for Type IIx fibers?

A
  • MCT 4 lactate transporter

- M4 isozyme: pyruvate to lactate

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15
Q

what MCT is for Type IIa fibers?

A
  • MCT 1 lactate transporter

- H4 isozyme: pyruvate from lactate

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16
Q

Cori Cycle

A
  • liver can remove lactate from the blood stream and biochemically convert it back to glucose
  • have the ability to convert lactate back to glucose
  • liver has the ability to reverse glycolysis
  • all muscle cells can do is convert lactate to pyruvate
17
Q

DOMS

A

delayed onset muscle soreness

18
Q

cross over effect

A

switch from FT to CHO as exercise gets more intense

19
Q

once you cross the lactate threshold, you rely on _____ for fuel

A

CHO

KINE 2P90 (7 decks)

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