Popsugar Fitness Workouts Waist Exercises Here's How to Work and Tone Your Waist May 10, 2019 by Susi May View On One Page Photo 29 of 31 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 29 Standing Weighted Twist Stand with your knees slightly soft, holding a dumbbell at chest level. Keep your pelvis stable as you rotate your rib cage right and left, to complete one rep. Be sure to keep your abs pulled toward your spine as you twist from side to side. Previous Next Start Slideshow WorkoutsStrength TrainingAb Exercises