Work those obliques!
Start by lying on your side, legs straight, feet stacked. Straighten bottom arm, keeping it in line below shoulder, and place free hand on your hip. Flex feet and balance on sides of feet (feet are stacked).
Use abs to keep hips lifted. Hold for 30 seconds. Work up to 1-3 minutes.
Don’t allow hips to drop to the ground. Keep breathing steady.
Muscles Worked: Obliques, Abs