A-level PE skeletal summary
- Created by: laurencranny
- Created on: 10-10-17 22:31
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- Skeletal Systems Summary:
- Synovial Joints
- ligaments, articular cartilage and synovial fluid
- Helps with stability and friction-free movement
- Synovial joints have three planes of movement...
- Movement Planes
- Saggital- Left and right
- Flexion and extension
- Frontal- anterior and posterior
- Abduction and adduction
- Transverse- superior and inferior
- horizontal flexion, horizontal extension and rotation
- Saggital- Left and right
- Movement Planes
- ligaments, articular cartilage and synovial fluid
- Movement Planes
- Saggital- Left and right
- Flexion and extension
- Frontal- anterior and posterior
- Abduction and adduction
- Transverse- superior and inferior
- horizontal flexion, horizontal extension and rotation
- Saggital- Left and right
- Agonistic Muscle Groups
- Agonist- create movement
- Antagonist- co-ordinate movement
- All con produce isotonic concentric/ eccentric or isometric movement
- Agonist- create movement
- Fixator- stabilize one part whilst another moves
- Concentric- shortens, tension, two bones closer
- Eccentric- lengthens, tension, resists force of gravity
- Isometric- contracts but does not change length
- All con produce isotonic concentric/ eccentric or isometric movement
- Fixator- stabilize one part whilst another moves
- Movement Analysis
- Identify...
- Joint type
- Articulating Bones
- Plane and pattern of movement
- Antagonistic muscle action
- Contraction type
- Identify...
- Motor Unit
- Made up of motor neuron and the muscle fibres
- Action potential travels down the motor neuron and into muscle fibres
- Creates contraction aided by a neurotransmitter
- Muscle Fibres
- Slow oxidative- many mitochondria, myoglobin and capilaries, resists fatigue well
- Marathon runners
- Fast oxidative glycolytic- high force and speed, resist fatigue for short time
- 800m
- Fast glycolytic- rapid force and speed, fatigue quickly
- 100m
- Slow oxidative- many mitochondria, myoglobin and capilaries, resists fatigue well
- Synovial Joints
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