This video demonstrates and effective stretch for the mid-back trapezius and rhomboid muscles. Position yourself as shown in the video with one arm grasping a door frame, and walking around to stabilise the shoulder and to get an effective stretch through the mid-back. The sensation should be mild to moderate, and can be held for a minimum of 30 seconds, to a maximum of 90 seconds, allowing yourself to relax into that sensation of stretch, and feeling the release between your spine and shoulder blade. And then when finished gently come out by turning opposite direction and then unlocking the shoulders.