A posture brace can help you position your shoulder blades into a better posture and allow you to return to everyday activities sooner. However, we don’t usually encourage their long-term use because research has shown that your shoulder and upper back muscles will weaken as you become reliant on the brace. There are better ways that are exercise-based.
Children’s posture, in particular, can be improved by wearing a posture brace for an hour or two a day while studying to encourage awareness of a good posture.