"Shoulder posture" refers to the position and alignment of the shoulders, whether they are slouched forward or pulled back. It refers to the way we hold our shoulders when sitting, standing, or carrying out any daily activities. Full definition
A lack of flexibility in your shoulders can also limit your ability to raise your arms fully overhead and may contribute to a rounded shoulder posture. (verywellfit.com)
This exercise can help to increase shoulder stability and positively affect shoulder posture. (all-about-arm-exercises.com)
Strengthening your upper back is important for supporting good shoulder posture and protecting the rotator cuff from injury. (all-about-arm-exercises.com)