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PE 1.1.a > Skeletal Muscular Contraction > Flashcards

Skeletal Muscular Contraction Flashcards

1
Q

What are type IIa muscle fibres called?

A

Fast oxidative glycolytic

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2
Q

What are type I muscle fibres called?

A

Slow oxidative

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3
Q

What are muscle fibres made up of?

A

Myofibril

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4
Q

What are type IIx muscle fibres more suited to?

A

Explosive movements such as weightlifting and sprinting

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5
Q

What size are type IIa muscle fibres and what colour are they?

A

Medium-large size and red

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6
Q

What is Henneman’s size principle?

A

Type I muscle fibres are recruited first, then type IIa, then type IIx

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7
Q

Why is Henneman’s size principle good?

A

Less fatigue
More motor control

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8
Q

What oxygen capacity do fast glycolytic fibres have?

A

The lowest oxygen capacity

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9
Q

What contraction time do fast glycolytic fibres have?

A

the fastest contraction time

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10
Q

What type of energy is used only for fast glycolytic muscle fibres?

A

Glucose which will be stored as glycogen

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11
Q

What is the fatigue resistance of fast glycolytic fibres?

A

The lowest fatigue resistance

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12
Q

How do fast glycolytic fibres respire?

A

Anaerobically

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13
Q

What force and speed do fast glycolytic fibres have?

A

The highest force and speed

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14
Q

How big are fast glycolytic fibres and what colour are they?

A

The largest fibres and white

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15
Q

What are type IIx muscle fibres called?

A

Fast glycolytic

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16
Q

What exercises are best suited for fast oxidative glycolytic fibres?

A

Mile run
Swimming
Cycling

17
Q

What type of respiration happens in Fast Oxidative Glycolytic fibres?

A

Aerobic and anaerobic can take over after a length of time, though this causes a build up of lactic acid and subsequent muscle fatigue

18
Q

What is the main source of energy in fast oxidative glycolytic muscle fibres?

A

Oxygen and glucose

19
Q

What is the contraction time of fast oxidative glycolytic muscle fibres?

A

Fast contraction time

20
Q

What exercises are best suited to slow oxidative fibres?

A

Walking and jogging

21
Q

What fatigue resistance do fast oxidative glycolytic fibres have?

A

Low/medium fatigue resistance

22
Q

What is the force and speed of fast oxidative glycolytic fibres?

A

High force and speed

23
Q

What type of respiration is used in slow oxidative muscle fibres?

A

Aerobic respiration

24
Q

What is the main source of energy in slow oxidative muscle fibres?

A

Oxygen

25
Q

What fatigue resistance do slow oxidative muscle fibres have?

A

The highest fatigue resistance

26
Q

What order to muscle fibres recruit in?

A

Order of size

27
Q

What type of muscle fibres are type I fibres?

A

Slow oxidative

28
Q

What size and colour are slow oxidative fibres?

A

Small and red

29
Q

What force and speed do type I muscle fibres have?

A

The slowest

PE 1.1.a (5 decks)

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