Weighted Leg Extension Crunch
Lying with a stability ball squeezed between the lower legs, straighten the legs up with the ball as the shoulders curl, then bend the knees back in.
How to do it
Setup
On your back, hands behind the head, knees bent over the hips, a stability ball squeezed between the lower legs.
Steps
- Straighten the legs toward the ceiling as the shoulders curl up.
- Keep the ball pressed between the shins.
- Bend the knees and lower the shoulders together.
Common mistakes
Ball slipping away: squeeze it with the lower legs the whole set. Lower back arching as the legs straighten: push the ball up, not away from you. Pulling on the head: the hands only cradle it.
Breathing
Exhale on the crunch, inhale lowering.






