Stay in the pose for 30 seconds, working up to 2 minutes. Then release your arms and repeat on the second side, bring your left arm behind your back first.
Cautions: If you have a history of shoulder joint dislocation, you should avoid the extreme internal rotation required by this pose. Or, if you want to try the pose, start with version 2. If you feel any dramatic movement in your upper arm bone, back off immediately. Likewise, if you have pain in your shoulder joint, elbow, or wrist. Those of you who have active rotator cuff injuries, carpal tunnel syndrome or tennis elbow should check with your teacher before practicing this pose.