The best exercises to cinch the waist and sculpt your obliques! The obliques are the muscles located along the sides of the abdominal wall. These muscles are responsible for side bending and waist twisting moves. Working the obliques helps to sculpt and cinch the waist, tones the abdominal wall and tightens the midsection. If you want to get rid of your muffin top for good, add these 10 exercises to your workout schedule and start engaging your obliques today!