How The Body Moves

The skeleton

  • žThe framework and levers for muscle attachment and protection of organs
  • žThe vertebrae encase the spinal cord and permit movement
  • žThe discs provide cushioning and help support & distribute weight of the body
  • žBending and twisting the back, the discs experience unequal pressure and you risk damaging them

The Muscles

  • žMain muscles are quadriceps, hamstrings, abdominals and arm muscles
  • žSome back muscles are small and are designed for assistance in posture, not heavy work
  • žMuscle work most efficiently in mid range rather than full extension or flexion