Posture retraining/strengthening helped me but only so much (I still needed rib resection surgery). Eventually, it started to do more harm than good.

There are several threads about postural garments and braces. Intelliskin is what helped me the most - http://neurotalk.psychcentral.com/sh...d.php?t=169067

My posture is quite good now since I've had surgery making me believe my TOS was giving me bad posture and not vice versa.

However, everyone's case is unique in one way or another.