Begin on your back with your legs straight and your arms extended overhead. Lift your shoulders and legs off the floor, keeping your lower back pressed firmly on the floor. This is the starting position. If this is too difficult, rest your heels on the floor. If that's still too hard, bend your knees and place your feet flat on the floor.
Raise your right leg and left arm, twisting slightly to touch your fingers to your toes.
Return back to the starting position. Repeat on the other side, touching your left toes with your right fingers.
Return back to the starting position. This counts as two reps.
Continue alternating sides for 20 reps. Complete three sets total.