PE- Muscle Fibres (DONUGHUE) Flashcards
1
Q
What are the 3 muscle fibre types?
A
Slow oxidative- type 1
Fast oxidative glycolytic- Type 2a
Fast glycolytic- type 2b
2
Q
What event would be suited to a high percentage of slow twitch?
A
Aerobic events, e.g. Long distance
3
Q
What event would be suited to a high percentage of Type 2a+b?
A
Anaerobic events, e.g. Short distance
4
Q
What is plyometrics?
A
Bounding/leaping, e.g. Long jumpers
5
Q
What are the functions of a slow twitch fibre?
A
Speed of contraction= slow Force of contraction= low Resistance to fatigue= high Aerobic capacity= high Anaerobic capacity= low
6
Q
What are the functions of fast oxidative glycolytic?
A
Speed of contraction= fast Force of contraction= high Resistance to fatigue= moderate Aerobic capacity= moderate Anaerobic capacity= moderate
7
Q
What are the functions of fast glycolytic?
A
Speed of contraction= fast Force of contraction= high Resistance to fatigue= low Aerobic capacity= low Anaerobic capacity= high
8
Q
What is the structure of slow oxidative?
A
Size/colour=small +red Fibres per neutron= few Capillary density= high Mitochondria= high Myoglobin= high PC stores= low
9
Q
What is the structure of fast oxidative glycolytic?
A
Size/colour= large + pink Fibres per neutron= many Capillary density= high Mitochondria= moderate Myoglobin= moderate PC stores= high
10
Q
What is the structure of fast glycolytic?
A
Size/colour=large + white Fibres per neutron= many Capillary density= low Mitochondria= low Myoglobin= low PC stores= high
