Muscle Fibres

colour

red

pink

white

size

small

intermediate

large

number of mitochondria

many

many

few

number of capillaries

many

many

few

myoglobin concentration

high

high

low

glycogen stores

low

high

high

contractile speed

slow

fast

fast

contractile strength

low

intermediate

high

fatigue resistance

high

moderate

low

aerobic capacity

high

moderate

low

anaerobic capacity

low

high

high