Movement: Grasp two gymnastic rings and brace through your core and shoulder blades. Keeping your elbows slightly bend, lower your body until your upper arms are in a line with your torso. Reverse the movement under control. To make the exercise easier raise the rings higher; to make it harder, lower them or elevate your feet.
Caution: Maintain stability throughout the exercise and do not push to failure - the leverage is naturally very challenging.