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Bio-Mechanics (Stability (Area of base support, Distance of line of…

- - - - Focus the most important part of the skill
    - - Generally divided into:
        
        Preparatory movement
        
        Backswing
        
        Force producing
        
        Follow through
      - Easier to spot errors
    - - Essential items to the success of each phase
      - To ensure that these actions are present
  - - - Setting
      - Protocol
      - Position
      - Scan and focus
      - Aids
    - - Marks on the floor
    - - Rhythm
      - Noise
- - - - Open Chain
        
        Last segment free to move
      - Close chain
        
        Last segment restricted
  - - - Conservation of angular momentum
      - Reduction of radius of rotation
      - H = IW
        H=mr^2 W
    - - muscle linking the two segments can be stretched and generate a ‘pre-tension’
      - Co-ordinated muscle activation more velocity can be generated at the end segment
        
        initially the proximal leads the distal segment/muscles
        
        then finally distal section ‘catches-up’
        
        amount of force in the force applied by the distal segment is essentially the sum of the force from all the joints used
        
        combined action of the muscle force at each joint and the resulting speed of each segment affects the speed at the distal end
    - - When muscle stretched, elastic energy stored
      - When muscle contracts, stretched structures recoil and assist in the movement
      - The longer the delay, the greater the loss