Crossover Crunch

Description

Lie on the floor with your knees bent and your feet and lower back flat on the floor. With your hands cupped loosely behind your head, contract through your abs to lift your shoulders and upper back off the floor. As you crunch, twist, and cross the elbow over to the opposite knee. Repeat back and forth on each side. Hold this position for a second before slowly lowering back to the start position.