title: Tests of functional limitations in fibromyalgia syndrome: a reliability study.
abstract: OBJECTIVE
  To evaluate the reliability and discriminative ability of a test battery consisting of 7 tests designed for the assessment of functional limitations in patients with fibromyalgia syndrome (FMS).
  
  
  METHODS
  The intrarater reliability of the test battery was evaluated for 15 women with FMS. Interrater reliability was calculated on 4 tests separately. Fifteen healthy women constituted a reference group.
  
  
  RESULTS
  The intrarater coefficient of variation was < 8% for the shoulder range of motion tests, chair test, and 6-minute walk test, and < 21% for the shoulder endurance test, with correlation coefficients above 0.80 for all tests. Kappa was 0.70-0.80 for the hand-to-scapula tests. The interrater coefficient of variation was < 5% for shoulder range of motion. The performances of the FMS patients were significantly decreased in comparison with healthy subjects in all the tests except for the hand-to-scapula movement.
  
  
  CONCLUSIONS
  All but 1 of the selected 7 tests were considered to possess acceptable intrarater reliability for use in FMS in clinical physical therapy practice.
authors.affiliation: Department of Physical Therapy, Sahlgrenska University Hospital, Göteborg, Sweden.
authors.forename: K
authors.initials: K
authors.lastname: Mannerkorpi
authors.forename: U
authors.initials: U
authors.lastname: Svantesson
authors.forename: J
authors.initials: J
authors.lastname: Carlsson
authors.forename: C
authors.initials: C
authors.lastname: Ekdahl
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D016002:Discriminant Analysis; D005080:Exercise Test / Q000379:methods*; D005260:Female; D005356:Fibromyalgia / Q000175:diagnosis* / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D015588:Observer Variation; D016059:Range of Motion, Articular; D015203:Reproducibility of Results