Plasticity in Response to Use and Disuse Flashcards

1
Q

How Do Muscles Change?

A

Exercise
Pathological
Physiological cardiac hypertrophy
Disuse
Aging

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2
Q

Pathological (Muscle Change)

A
  • muscle wasting secondary to chronic disease such as cancer or heart failure
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3
Q

Physiological cardiac hypertrophy (Muscle Change)

A
  • a pregnant woman’s heart undergoes hypertrophy to keep up with increased bloodflow demands; happens to some athletes; or even in snakes digesting a meal!
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4
Q

Exercise (Muscle Change)

A
  • Endurance vs HIIT training changes skeletal muscle; heart may change as well.
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5
Q

Aging (Muscle Change)

A
  • Switching of Type 2 (Fast) to Type 1 (Slow) fibres
  • Muscle loss (sarcopenia)
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6
Q

Disuse (Muscle Change)

A
  • Disuse atrophy occurs during space travel
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