Reverse penance stretch for the biceps. In this video I'll be demonstrating reverse bending stretch for the anterior deltoid and biceps brachii I first section the client's biceps working proximal to distal, similar to the suction release method. You flex their arm 90 degrees to shorten the biceps muscle suction down and then extend their arm. stretching the biceps, then release. Repeat this process until the muscles feel softer.