Popsugar Fitness Workouts How Do I Work My Abs Standing? Skip the Mat and Work Your Abs Standing For a Strong, Lean Core January 24, 2019 by Susi May View On One Page Photo 1 of 22 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 High Knees Hold your hands at waist level. Hop the right knee up toward your hands, then quickly switch legs and hop the left knee up. This counts as one rep. Previous Next Start Slideshow WorkoutsStrength TrainingAb Exercises