title: A randomized, controlled clinical trial of a treatment for shoulder pain.
abstract: OBJECTIVE
  The aim of this study was to evaluate the efficacy of a physical therapy approach to the treatment of shoulder pain. Subjects. Sixty-six volunteers with shoulder pain believed to be of local mechanical origin were randomly allocated to either a treatment group or a control group.
  
  
  METHODS
  Subjects in the treatment group received 1 month of physical therapy aimed at restoring function of their shoulder muscles. Subjects in the control group received no treatment. Outcome measurements of pain intensity, range of motion (ROM), isometric muscle force, functional impairment, and self-perception of improvement were obtained by blinded assessment.
  
  
  RESULTS
  Subjects in the treatment group showed improvement in pain-free abduction and flexion ROM, functional impairment, and self-perception of improvement. The control group deteriorated slightly over the experimental period in ROM and functional impairment measures.
  
  
  CONCLUSIONS
  These results suggest that the physical therapy approach used in this study is effective in improving shoulder function in subjects experiencing pain of mechanical origin. The results also provide little evidence of spontaneous recovery over a 1-month period.
authors.affiliation: Faculty of Health Sciences, University of Sydney, Lidcombe, New South Wales, Australia. k.ginn@cchs.usyd.edu.au
authors.forename: K A
authors.initials: KA
authors.lastname: Ginn
authors.forename: R D
authors.initials: RD
authors.lastname: Herbert
authors.forename: W
authors.initials: W
authors.lastname: Khouw
authors.forename: R
authors.initials: R
authors.lastname: Lee
mesh_terms: D000203:Activities of Daily Living; D001696:Biomechanical Phenomena; D005081:Exercise Therapy / Q000379:methods* / Q000592:standards; D005260:Female; D006801:Humans; D008297:Male; D010146:Pain / Q000209:etiology / Q000534:rehabilitation*; D010147:Pain Measurement; D017060:Patient Satisfaction; D016059:Range of Motion, Articular; D012785:Shoulder Joint; D016037:Single-Blind Method