1 Keep your legs straight and extend your right arm along the floor (for balance) while lying on your right side. Cup your left hand behind your head while holding your head a few inches above the floor with your elbow pointing toward the ceiling, as shown. Remember to keep your head still (do not bend it toward your feet) throughout the movement phase.

2 Contract your stomach muscles so that your upper torso curls toward your knees. Then, raise your shoulders off the floor but ensure that your lower back is flat against the floor. Prohibit placing stress on your neck by not pulling your head toward your chest using your hands. Instead, keep your head fixed perpendicular to your upper torso throughout the movement. 

3 When you have reached the full phase of contraction, briefly pause and return to the starting position without letting your abdominal muscles to completely relax.