This exercise has been developed by the Canadian Chiropractic Guideline Initiative (CCGI) and is based on a systematic review of shoulder pain1 and expert consensus. Exercises conceptualized & demonstrated by: Nadia Richer, Caroline Poulin (professors, UQTR); Narration: André Bussières (professor, UQTR, McGill); Production and editing: Yannick Maltais (Information Technology Services, UQTR) 1. Abdulla, S. Y., Southerst, D., Côté, P., et al. (2015). Is exercise effective for the management of subacromial impingement syndrome and other soft tissue injuries of the shoulder? A systematic review by the Ontario Protocol for Traffic Injury Management (OPTIMa) Collaboration. Manual Therapy, 20(5), 646-656.