Follow the instructions below to really target those obliques, doing as many reps as you can for 30 seconds before switching sides.
- Lie on your right side, with your left hand behind your head and your right hand on the floor.
- Press down into your right hand as you raise your straight legs off the floor, bringing your torso toward your legs.
- Lower yourself back to the floor with control. This completes one rep.
- Do as many reps as you can in 30 seconds, then repeat on the other side.