Stir the Pot If you're looking for a new, advanced move that's challenging, the stir the pot exercise will you give you a run for your money. It helps with core stability and will leave you sweaty in no time. Begin in an elbow plank with your forearms resting on the top of a ball. Keeping your core strong and your body still, use your arms to roll the ball in a small clockwise circle. This completes one rep. Image Source: POPSUGAR Photography / Tamara Pridgett