Conclusion
In summary, the physical therapy interventions of glenohumeral mobilizations and MWM in combination with a supervised exercise program resulted in a higher percentage of change (but not statistically significant) from pre- to post-treatment in decreasing pain and improving function compared to the supervised exercise only and control groups. This study, albeit a pilot, provides preliminary evidence that these manual therapy techniques can be an important adjunct to supervised exercise in the treatment of individuals with shoulder impingement syndrome. However, other studies with larger sample sizes are needed to ascertain whether these trends in improvement are consistent and statistically significant.