Which dysfunction is noted as common in the cervical and upper-extremity assessments?

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The key idea being tested is how scapular stability affects neck and upper-extremity function. A stable scapula provides a solid base for arm movements and helps the shoulder blade move in coordinated concert with the humerus. When scapular stability is poor, the scapulothoracic rhythm is disrupted, and the shoulder and arm rely more on compensatory motions from the neck and upper spine. This often shows up in cervical and upper-extremity assessments as inefficient or abnormal scapular control, such as protraction, downward rotation, or winging that alters movement patterns and can contribute to neck and shoulder discomfort or dysfunction. The other options involve areas not typically primary in these assessments (lower body or ankle), so they’re less likely to be the common dysfunction observed in this context.