A 21-year-old collegiate baseball pitcher presents to outpat…
A 21-year-old collegiate baseball pitcher presents to outpatient physical therapy with complaints of decreased throwing velocity and posterior shoulder tightness. Examination reveals a loss of 20° of internal rotation compared to the contralateral side, with total arc of motion preserved. Scapular assessment demonstrates mild anterior tilting and decreased upward rotation during elevation. The supervising PT has identified GIRD and initiated a plan of care focused on restoring motion and improving shoulder mechanics. Which of the following interventions would be MOST appropriate for the PTA to prioritize during the early phase of treatment?