Popsugar Health & Fitness Workouts Halle Berry's Favourite Ab Exercise If Halle Berry Could Only Do 1 Exercise For the Rest of Her Life, It'd Be a Plank — Here's Why 17 February 2020 by Tamara Pridgett First Published: 14 February 2020 View On One Page Photo 7 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Stir the Pot 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. Previous Next Start Slideshow Black WomenWomen Of ColorBody WeightBodyweight ExercisesPlankWorkoutsAb ExercisesCelebrity InstagramsCelebrity FitnessHalle Berry