Objective: To examine the effects of exercise on the function of adults with shoulder impingement syndrome (SIS).
Design: A structured literature review of randomized controlled trials (RCTs).
Methods: Studies were identified from databases searched from 2007 to April 2016 MEDLINE, EMBASE, PEDro, Sports Discus, AMED and Cochrane Library, only one reviewer selected studies meeting inclusion criteria. The methodological quality of the included studies was independently assessed by the same reviewer using the PEDro quality assessment tool.
Results: Eight studies were included in the review and appraised for content. Five studies achieved a score of 6 or above indicating good quality, tree trials were rated as moderate quality. No study achieved lower <4 to indicate poor quality.
Conclusion: Due to the lack of a detailed description of the exercise protocols used, the current evidence is difficult to interpret in relation to use in clinical practice. Therefore, future RCTs studying exercise therapy should also concentrate on the effect of different exercise protocols, including the intensity, duration, frequency and load of the exercises.