What can limited shoulder mobility due to rounded shoulders affect?

Limited shoulder mobility caused by rounded shoulders can indeed lead to upper back discomfort. When the shoulders are rounded forward, this posture can create an imbalance in the muscles around the shoulder girdle and upper back. Chronic strain on these muscles may occur as they work harder to compensate for the lack of mobility, leading to muscle tension, pain, and discomfort in the upper back region.

Additionally, rounded shoulders often lead to the tightening of the pectoral muscles and the weakening of the mid-back muscles, which can further contribute to discomfort. Over time, this altered alignment and muscle tension not only impacts the upper back but can also affect overall posture and biomechanics during movement.

In contrast, the other options do not accurately reflect the consequences of limited shoulder mobility. It does not enhance upper body strength, nor does it result in improved athletic performance. Moreover, it certainly has a significant impact on posture, as evidenced by the associated discomfort and imbalance that may arise.