Which observation helps determine if the scapula is elevated or depressed?

The observation that helps determine if the scapula is elevated or depressed is the comparison of scapular heights. This method involves visually or manually assessing the relative positions of both scapulae on the back. If one scapula appears higher than the other, it indicates an elevation on that side, while a lower position suggests depression.

Comparing scapular heights offers clear insight into the overall alignment and positioning of the shoulders, which is crucial for assessing postural imbalances or muscle asymmetries. This assessment can reveal patterns that may contribute to shoulder or neck discomfort and guide appropriate corrective exercises in Pilates practice.

Other methods, such as palpation of shoulder muscles or evaluating the angle of the upper arm, may provide information about muscle tension or function but do not directly indicate the vertical position of the scapulae in relation to each other. Similarly, the width of the humerus does not inform about the elevation or depression of the scapula; instead, it relates to the arm's positioning and structure. Thus, comparing scapular heights is the most effective way to assess their elevation or depression accurately.