Equipment
Swiss Ball
Body Parts
Core

Step-by-step instructions

1. Place a Swiss ball on the floor and get into pushup position with your hands on it.
2. Now lower your forearms to rest on the ball, keeping your entire body in a straight line with abs braced.
3. Use your elbows to roll the ball in a circular motion, clockwise and then counterclockwise, as if you were stirring a pot.