Movement analysis in sport

• Levers in our body are formed from bones, joints and muscles.
• A lever consists of:

  • a rigid structure (bone)
  • a force acting upon it (muscle) to produce a turning movement (angular motion)
  • a fulcrum which is a fixed point (joint)
  • a load or resistance that is placed on the rigid structure (weight of body part being moved and anything that it is carrying)
• First class lever– LFE
• Second class lever - ELF
• Third class lever - FEL
• mechanical advantage - the lever can overcome a large load with relatively little effort and is very useful for joints which are weight bearing ( second class lever )
• Mechanical advantage = effort arm ÷ resistance arm
• Sagittal plane- a vertical plane that divides the body into left and right sides. Flexion and extension movement that occur.
• Frontal plane- passes from side to side and divides the body into the front and back. Abduction and adduction movements that.
• Transverse plane- passes through the middle of the body and divides the body horizontally in an upper and lower half. Rotational movement occur
• Frontal axis- this line runs from left to right through the centre of the body.
• frontal axis- this line runs from front to back through the centre of the body
• Vertical axis- this line runs from top to bottom through the centre of the body.