Cote, M.P.; Gomlinski, G.; Tracy, J.; Mazzocca, A.D.
J Shoulder Elbow Surg (2009) 18, 311-316
Discussion: The amount of superior migration of the humeral head observed following exercise was consistent with previously reported amounts of superior migration in patients with subacromial impingement. The alterations that occurred in shoulder kinematics following exercise may have resulted from parascapular muscle fatigue as well as rotator cuff muscle insufficiency.
Conclusion: In the context of a clinical model of fatigue, these scapular exercises resulted in superior migration of the humeral head and alterations in shoulder kinematics on radiographic analysis in healthy subjects.
Level of evidence: Basic science study.
Keywords: Scapular exercise; radiographic analysis; physical therapy; subacromial impingement.