Position yourself on a decline bench with your feet locked in. Your upper body should be raised off the bench. Cup your right hand over your right ear, and place your left hand on your thigh. Raise your upper body slowly while turning your torso to the left. Focus on keeping your abs tight and keeping the movement slow and controlled. Continue crunching up until your right elbow touches your left knee. Lower your body slowly back down to the starting position. After completing one set on the right, switch to your left side. TIP: Focus on really twisting your torso and feeling the contraction when you are in the UP position.