Levers, Planes and Axes

• where movement takes place there is a lever
• levers help us lift weight
• levers help us move quite quickly
• 1 2 3, F L E
• what symbol is the fulcrum?

  triangle
• what symbol is the load?

  square
• what symbol is the effort?

  arrow
• the fulcrum goes on the bottom
• the load goes on the top
• the effort can go on the top or the bottom
• the first class lever is the extension at the elbow
• the second class lever is plantarflexion at the ankle
• 1st class lever: load, fulcrum, effort
• 2nd class lever: effort, load, fulcrum
• 3rd class lever: load, effort, fulcrum
• what lever is it at the knee preparing to kick the ball?

  3rd class
• what lever is it throwing a ball?

  1st class
• What are the Planes?

  Sagittal, Transverse, Frontal
• What are the axis?

  Transverse, Longitudinal, Sagittal
• what is the movement at Sagital, Transverse?

  Flexion, Extension, Plantarflexion, Dorsiflexion
• what is the movement at Transverse, Longitudinal?

  rotation
• what is the movement at Frontal, Sagital?

  Abduction, Adduction
• what is a sport example for Sagital, Transverse?

  forward roll
• what is a sport example for Transverse, Longitudinal?

  360 spin
• what is a sport example for Frontal, Sagital?

  cartwheel
• mechanical advantage equation?

  effort arm / resistance arm
• the 2nd class lever cannot lift heavy load and dont have a large range of movement
• 1st and 3rd class lever have a large range of movement but cannot lift heavy load