The Swiss Ball Tuck is a core exercise that primarily targets the abdominal muscles. This exercise is well suited to intermediate lifters.
- Start in a push up position with your legs up on an exercise ball and your shins resting against the ball.
- Tuck your knees into your chest by contracting your abs and rolling your feet onto the ball.
- Straighten your legs to return to the starting position and repeat.
Abdominal Muscle Diagram.