Muscle Fibres Types Flashcards
The 3 types of muscle fibre types
SO
FOG
FG
Structural factors (what they are made of)
Neuron size
Fibres per neuron
Capillaries
Glycogen stores
PC stores
Mitochondria
Myoglobin
SO (Type 1)- Structural factors
Neuron size
Fibres per neuron
Capillaries
Glycogen stores
PC stores
Mitochondria
Myoglobin
Small
Few
Many
Low
Low
Many
Many
FOG (Type 2a)- Structural factors
Neuron size
Fibres per neuron
Capillaries
Glycogen stores
PC stores
Mitochondria
Myoglobin
Large
Many
Many
High
High
Med
Med
FG (Type 2b)- Structural factors
Neuron size
Fibres per neuron
Capillaries
Glycogen stores
PC stores
Mitochondria
Myoglobin
Large
Many
Few
High
High
Few
Few
Functional factors (what they do)
Speed of contraction
Force of contraction
Fatigue resistance
Aerobic capacity
Anaerobic capacity
SO (Type 1)- Functional factors
Speed of contraction
Force of contraction
Fatigue resistance
Aerobic capacity
Anaerobic capacity
Slow
Low
High
High
Low
FOG (Type 2a)- Functional factors
Speed of contraction
Force of contraction
Fatigue resistance
Aerobic capacity
Anaerobic capacity
Fast
High
Med
Med
High
FG (Type 2b)- Functional factors
Speed of contraction
Force of contraction
Fatigue resistance
Aerobic capacity
Anaerobic capacity
Fast
High
Low
Low
High
Application
Increases intensity and duration of performance, delays fatigue and OBLA and reduces injury