Experts recommend that those of us working at our desk for long periods of time be sure to take mini-breaks to save our hands and back. The corner stretch, recommended by the American Physical Therapy Association. Corner stretches target the muscles of the chest (pecs) for a stretch, and they will work your upper back muscles, as well as those under the shoulderblade. Corner stretches make a good movement to counter postural problems such as kyphosis.
For written instructions on how to do the corner stretch will go over posture and form points, breathing and when not to do the exercise.
