title: Randomised controlled trial of exercise for low back pain: clinical outcomes, costs, and preferences.
abstract: OBJECTIVE
  To evaluate effectiveness of an exercise programme in a community setting for patients with low back pain to encourage a return to normal activities.
  
  
  METHODS
  Randomised controlled trial of progressive exercise programme compared with usual primary care management. Patients' preferences for type of management were elicited independently of randomisation.
  
  
  METHODS
  187 patients aged 18-60 years with mechanical low back pain of 4 weeks to 6 months' duration.
  
  
  METHODS
  Exercise classes led by a physiotherapist that included strengthening exercises for all main muscle groups, stretching exercises, relaxation session, and brief education on back care. A cognitive-behavioural approach was used.
  
  
  METHODS
  Assessments of debilitating effects of back pain before and after intervention and at 6 months and 1 year later. Measures included Roland disability questionnaire, Aberdeen back pain scale, pain diaries, and use of healthcare services.
  
  
  RESULTS
  At 6 weeks after randomisation, the intervention group improved marginally more than the control group on the disability questionnaire and reported less distressing pain. At 6 months and 1 year, the intervention group showed significantly greater improvement in the disability questionnaire score (mean difference in changes 1.35, 95% confidence interval 0.13 to 2.57). At 1 year, the intervention group also showed significantly greater improvement in the Aberdeen back pain scale (4.44, 1.01 to 7.87) and reported only 378 days off work compared with 607 in the control group. The intervention group used fewer healthcare resources. Outcome was not influenced by patients' preferences.
  
  
  CONCLUSIONS
  The exercise class was more clinically effective than traditional general practitioner management, regardless of patient preference, and was cost effective.
authors.affiliation: Centre for Health Economics, University of York, York, United Kingdom. j.a.moffett@medschool.hull.ac.uk
authors.forename: J K
authors.initials: JK
authors.lastname: Moffett
authors.forename: D
authors.initials: D
authors.lastname: Torgerson
authors.forename: S
authors.initials: S
authors.lastname: Bell-Syer
authors.forename: D
authors.initials: D
authors.lastname: Jackson
authors.forename: H
authors.initials: H
authors.lastname: Llewlyn-Phillips
authors.forename: A
authors.initials: A
authors.lastname: Farrin
authors.forename: J
authors.initials: J
authors.lastname: Barber
mesh_terms: D000293:Adolescent; D000328:Adult; D003365:Costs and Cost Analysis; D005081:Exercise Therapy / Q000191:economics / Q000379:methods*; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000191:economics / Q000534:rehabilitation*; D008297:Male; D008875:Middle Aged; D010342:Patient Acceptance of Health Care; D017060:Patient Satisfaction; D016896:Treatment Outcome