title: Effect of pulmonary rehabilitation on balance in persons with chronic obstructive pulmonary disease.
abstract: OBJECTIVE
  To describe within-subject effects of pulmonary rehabilitation (PR) on balance in persons with chronic obstructive pulmonary disease (COPD) and to determine whether any observed changes in balance were associated with change in exercise tolerance or health-related quality of life.
  
  
  METHODS
  Single-arm longitudinal study.
  
  
  METHODS
  Inpatient PR center.
  
  
  METHODS
  Subjects with COPD (N=29; mean +/- SD age, 69.8+/-10.3y; forced expiratory volume in 1 second, 46.3%+/-22.3% predicted; 59% men [n=17]).
  
  
  METHODS
  A standardized 6-week multidisciplinary PR program (exercise training, breathing exercises, education, and psychologic support).
  
  
  METHODS
  Balance was assessed using the Berg Balance Scale (BBS), Timed Up and Go (TUG) test, and the Activities-Specific Balance Confidence (ABC) scale. Exercise tolerance was determined from the 6-minute walk test (6MWT), and health-related quality of life from the Chronic Respiratory Questionnaire (CRQ).
  
  
  RESULTS
  Subjects showed small improvements in BBS (2.8+/-2.8 points; P<.001) and TUG (-1.5+/-2.4s; P=.003) scores, but not in ABC scores (4.8+/-15.4 points; P>.05). There was a weak relationship between change in BBS and change in CRQ scores (r=.40; P=.045) and no relationship with change in 6MWT.
  
  
  CONCLUSIONS
  PR contributed to minor improvements in balance and had no effect on balance confidence in subjects with COPD. Further work is warranted to determine the optimal intervention for improving balance in this population.
authors.affiliation: Graduate Department of Rehabilitation Science, University of Toronto, Toronto, ON, Canada.
authors.forename: Marla K
authors.initials: MK
authors.lastname: Beauchamp
authors.forename: Sachi
authors.initials: S
authors.lastname: O'Hoski
authors.forename: Roger S
authors.initials: RS
authors.lastname: Goldstein
authors.forename: Dina
authors.initials: D
authors.lastname: Brooks
mesh_terms: D000058:Accidental Falls / Q000517:prevention & control*; D000368:Aged; D005081:Exercise Therapy; D017079:Exercise Tolerance; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D004856:Postural Balance; D029424:Pulmonary Disease, Chronic Obstructive / Q000534:rehabilitation*; D011788:Quality of Life