Popsugar Health & Fitness Workouts Ab Exercises For Women These Are the 50 Best Ab Exercises You Can Do 22 May 2018 by Jenny Sugar View On One Page Photo 18 of 50 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 18 Knee Driver Begin in an elbow plank position with the abs engaged. Draw the left knee into the chest. Then step the foot back to the elbow plank position. Now draw the right knee into the chest, then step it back to the elbow plank position. This counts as one rep. Previous Next Start Slideshow WorkoutsAb Exercises