How to Do
How to Do Crunches with a Medicine Ball
The crunches with a medicine ball should begin with good posture to avoid injury. Brace the spine by drawing your lower abdomen inward. Your core muscles should be activated to support your posture as you perform the exercise.
If any pain is experienced, immediately stop the crunches with a medicine ball.
Beginning
Beginning Crunches with a Medicine Ball
Lay flat on your back with knees bent, legs hip-width apart, abs engaged, and arms extended straight up toward the ceiling while holding a medicine ball (or dumbbell).
Movement
Crunches with a Medicine Ball Movement
1. Begin on the ground, knees bent and medicine ball pressed against your chest.
2. Extend your arms in a straight line above your head.
3. As you sit up, keep them straight, and as you come down, reach back so the medicine ball contacts the ground behind your head. Rep for three sets of 15 to 20 reps, or whatever circuit training interval you've specified.
Benefits
Crunches with a Medicine Ball Benefits
The medicine ball crunch is a wonderful core workout, and a full set will definitely tax your abs. It will also help you strengthen and stretch your arms and shoulders.
Exercise Aliases
Swiss Ball Crunch, Exercise Ball Crunch.
