Medicine Ball Crunch

The crunch is a well known exercise to strengthen the abs. Using a weight such as a medicine ball adds more resistance to make the exercise harder.

Teaching points

  • Lay on your back the floor with the knees bent.  
  • Hold a medicine ball in both hands, at arms length, pointing to the ceiling.  
  • Slowly lift your head, neck and shoulders off the floor.  
  • Keep the ball at arms length and the chin at the same distance from the chest at all times.  
  • Slowly return to the starting position.  

Variations & progressions

  • Perform on a fitball (swiss ball) to add a core stability dimension to the exercise.  

Muscles worked

  • Rectus Abdominus.  
  • Transversus Abdominus.

Alternative exercises

  • Crunch.  
  • Crunch using a resistance band.  
  • Crunch machine.

Related injuries

  • Lower back pain.