Oblique Crunches with a Partner

Start by lying on your backs, facing opposite directions, with the outside of your hips almost touching. Keep your chin away from your chest, and focus your vision toward the ceiling at about 45 degrees. Avoid looking straight up at the ceiling or toward the opposite wall. Now slowly curl your torso up, rotate toward your partner and give him or her a “high five” with your farthest arm. Be sure to contract your abdominals on each repetition. Alternate sides, performing 8–15 reps on each side.