Effects of scapular stability exercise on shoulder stability and rehabilitative ultrasound images in office workers.

The sample was small and limited to 38 office workers receiving physical therapy at one hospital. The authors state the participants were a selected group of office workers with shoulder pain, so the results may not apply to other patients. The study did not report pain, function, or work performance outcomes, so postural changes do not prove symptom relief or better job performance. The exercise programme was multi-component, so the study cannot say which exercise produced the changes. The paper does not report the randomisation method, allocation concealment, blinding, or dropout handling. The intervention lasted only 6 weeks, and the authors note this may limit pain and functional gains.

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Do not conclude that scapular stability exercise reduces shoulder pain or improves work performance. The trial measured forward head distance, rounded shoulder posture, upper limb stability, and lower trapezius thickness, not pain or occupational function.