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Movement Analysis - Coggle Diagram

- - - - Line that divides the body vertically into the left and right sides.
    - - Line that divides the body vertically into the front and the back.
    - - Line that divides the body in a horizontal way from the front to the back.
  - - - Line that passes through the body horizontally from left to right.
        
        An example is a sommersault.
    - - Line that passes through the body horizontally from front to back.
        
        An example is a cartwheel,
    - - Line that passes through the body vertically from top to bottom.
        
        An example is a full twist.
- - - - The load is the object that has to be moved, the fulcrum is described as the "joint around which the movement occurs", the effort is the muscular force that is required and used to move the load and finally the levers are the bones of the skeleton.
    - - First Class
        
        In First Class levers, the fulcrum is positioned in between the effort and the load. These systems have a mechanical advantage.
        
        Nodding the head is an example of a first class lever system where the load would be the weight of the head.
      - Second Class
        
        In Second class levers, the load is positioned in between the effort and the fulcrum. These systems also have a mechanical advantage.
        
        An example of a second class lever system can be seen between the ball of the foot, the gastrocnemius and the load of the body weight as the toes are pointed.
      - Third Class
        
        In Third class lever systems, the effort is between the fulcrum and the load. These systems have a mechanical disadvantage and are the most common in the body.
        
        These systems can be seen in common motions such as biceps curls and at the knee when a ball is kicked.
      - Mechanical advantages and disadvantages
        
        Lever systems can be used to move a heavier load and move a load further and faster.
        
        Lever systems that let a person lift a heavier load are considered to be a mechanical advantage.
        
        Those systems where a force greater than the load has to be applied to move it are considered a mechanical disadvantage.