1 Lie face down on a mat or padded surface, extending both arms overhead on the floor and straightening your legs behind you with your inner ankles facing each other. Raise your head, shoulder and right arm (thumb pointed up, palm facing in). Simultaneously lift your left leg, keeping it straight.
2 Pause for a quick beat, then quickly reverse the motion, raising your left arm and right leg. Keep your head and shoulders off the ground as you continue to alternate sides for 30 seconds. Rest and repeat twice more.