Oblique Planks Exercise
1. Begin by lying on your right or left side on the floor. Bend your elbow 90 degrees and let your weight rest on your forearm. Stack your legs and feet on top of one another and keep your head in line with the rest of your spine. You should be completely straight, like and arrow.
2. Without moving the alignment of your body and without using your free hand, lift your hips up and toward the ceiling. You should be touching the floor on only your forearm and feet.
3. Exhale as you raise your hips up; inhale as you return them to the starting position.