Muscle Fibre Types

Question 1

What is a twitch

Answer 1

A single contraction

Question 2

What type of muscle fibre is an endurance athlete more likely to have

Answer 2

Type 1 - slow oxidative

Question 3

What muscle fibres is a games player most likely to have

Answer 3

Type 2 - fast oxidative glycolytic

Question 4

What muscle fibres are power athletes most likely to have

Answer 4

Type 2b - fast glocylitic

Question 5

What sizes are the muscle fibres

Answer 5

Type 1 - small
Type 2 - intermediate
Type 2b - large

Question 6

What colours are the fibres

Answer 6

Type 1 - red
Type 2 - pink
Type 2b - white

Question 7

How many mitochondria do the fibres have

Answer 7

Type 1 - many (produced anaerobically)
Type 2 - some
Type 2b - few (aerobically)

Question 8

What is the glycogen store in the fibres like

Answer 8

Type 1 - low
Type 2 - intermediate
Type 2b - high

Question 9

The capillary density in the fibres

Answer 9

Type 1 - lots (high)
Type 2 - intermediate
Type 2b - low

Question 10

The contractile speed of muscle fibres

Answer 10

Type 1 - low
Type 2 - intermediate
Type 2b - high

Question 11

The contractile force of muscle fibre type

Answer 11

Type 1 - low
Type 2 - intermediate
Type 2b - high

Question 12

What are the fatigue resistance of the muscle fibres

Answer 12

Type 1 - high
Type 2 - intermediate
Type 2b - low