title: Fibromyalgia, physical activity, and daily functioning: the importance of efficacy and health-related quality of life.
abstract: OBJECTIVE
  To determine whether individuals with fibromyalgia (FM) who are more physically active differ in various psychosocial characteristics (i.e., self-efficacy, health-related quality of life [HRQL]) from those who are less active, and whether those who function better on a daily basis also differ in these characteristics from their less able counterparts.
  
  
  METHODS
  The predominantly female sample (n = 86) consisted of individuals medically diagnosed with FM. Measures included symptom variables, physical activity frequency and intensity, daily functioning, HRQL, efficacy for physical activity, FM pain, and other FM symptoms.
  
  
  RESULTS
  Discriminant function analyses to predict physical activity status (P < 0.0001) and functional ability status (P = 0.03) were significant. The variables of physical activity efficacy, pain efficacy, and the physical HRQL component were the best predictors.
  
  
  CONCLUSIONS
  Support for the importance of perceived control and HRQL for engaging in higher levels of physical activity and daily functioning was demonstrated. Future research must continue to examine psychosocial factors that affect patients' functioning with FM in order to enhance their well-being.
authors.affiliation: Centre for Behavioural Research and Program Evaluation, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
authors.forename: S N
authors.initials: SN
authors.lastname: Culos-Reed
authors.forename: L R
authors.initials: LR
authors.lastname: Brawley
mesh_terms: D000203:Activities of Daily Living / Q000523:psychology*; D000223:Adaptation, Psychological; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D001294:Attitude to Health; D017281:Cost of Illness; D016002:Discriminant Analysis; D015444:Exercise / Q000502:physiology / Q000523:psychology*; D005260:Female; D005356:Fibromyalgia / Q000503:physiopathology* / Q000517:prevention & control / Q000523:psychology*; D006304:Health Status; D006801:Humans; D007389:Internal-External Control; D008875:Middle Aged; D011237:Predictive Value of Tests; D011788:Quality of Life / Q000523:psychology*; D012648:Self Care / Q000379:methods / Q000523:psychology; D020377:Self Efficacy; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires