NASM Corrective Exercise Specialist Practice Exam - Prep & Study Guide

The postural dysfunction characterized by rounded shoulder posture usually involves specific muscle imbalances, particularly in the upper body. When observing a client with rounded shoulders, it tends to correlate with the positioning of the scapulae and the surrounding musculature.

In this case, the rhomboids, which are responsible for retracting the scapulae, typically become lengthened and weak due to the forward position of the shoulders. Conversely, the anterior deltoid, which is involved in shoulder flexion and stabilization, often becomes shortened. This combination of lengthened rhomboids and shortened anterior deltoid contributes significantly to the rounded shoulder posture, creating a classic scenario of muscle imbalance and postural dysfunction.

Understanding the role of these muscle groups is essential for a corrective exercise approach. By addressing the shortened anterior deltoid and strengthening the lengthened rhomboids through targeted exercises, one can help restore optimal shoulder alignment and potentially alleviate pain experienced in the past. This corrective exercise strategy directly addresses the underlying dysfunction and aims to improve overall posture and shoulder functionality.