1. Lay on your side on a soft workout surface with your upper hand resting lightly behind your head, and your legs bent at a 90-degree angle allowing your feet to rest out behind you
2. As you exhale, contract your oblique muscles to bring your head and shoulders toward your hip on the corresponding side
3. After reaching a solid contraction, slowly relax your oblique muscles and return to the starting position to complete one rep
The primary muscles used in Oblique Crunches are the Abs. The secondary muscles used are the Obliques.