Stability Ball Knee Tuck
From a plank with the shins on the ball, pull the knees toward the chest and roll back out with control.
How to do it
Setup
Plank with the shins on the ball.
Steps
- Pull the knees toward the chest, rolling the ball in.
- Hips stay level with the shoulders.
- Extend back to the plank.
Common mistakes
Hips piking up: that is the pike, a different rep; keep them level. Ball skidding sideways: slower pull, centered shins. Plank sagging on the return: re-brace each rep.
Breathing
Exhale on the tuck, inhale extending.
