Additional file 7: of The Strengthening Exercises in Shoulder Impingement trial (The SExSI-trial) investigating the effectiveness of a simple add-on shoulder strengthening exercise programme in patients with long-lasting subacromial impingement syndrome: Study protocol for a pragmatic, assessor blinded, parallel-group, randomised, controlled trial

Mikkel Clausen, Thomas Bandholm, Michael Skovdal Rathleff, Karl Christensen, Mette Zebis, Thomas Graven-Nielsen, Per HĂślmich & Kristian Thorborg
Data collection methods â study instruments. (PDF 235 kb)
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