hab noch was im Netz dazu gefunden :
http://pages.prodigy.net/unohu/posture.htm#Rounded
http://www.honoluluclub.com/pulse.php?ID=26
http://www.improveyourposture.com/main/posture.htm
http://www.afpafitness.com/articles/...lexibility.htm
--> dort der Abschnitt: To have the upper body flexibility just to stand up straight, you need two main stretches.......

Zitat aus einer der Seiten über round shoulders :
Rounded shoulders ? If your shoulders are not aligned with your ears or hips and/or your palms are facing back when standing, chances are you have round-shoulder syndrome. If you consistently slump or slouch in your chair, you are setting yourself up for rounded shoulders. When slouching, your postural stabilizer muscles can become weak, therefore letting your posture fall in a rounded position. Rounded shoulders also can result from a muscular imbalance between the chest and the upper back. The chest is stronger than the back, therefore pulling your posture in the rounded shoulder stance. Rounded shoulders can be improved by remembering to pull your shoulders back and by performing back strengthening exercises, such as reverse flys and wide arm, upper back rows