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 8 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Up-Down Plank Begin in a full plank. Lower your right elbow to the mat and then your left, coming into an elbow plank. Put your right hand on the mat, and straighten your right elbow. Do the same on the left to return to a full plank. This counts as one rep. Previous Next Start Slideshow Black WomenWomen Of ColorBody WeightBodyweight ExercisesPlankWorkoutsAb ExercisesCelebrity InstagramsCelebrity FitnessHalle Berry