title: Measurement of functional activity in chronic obstructive pulmonary disease: the grocery shelving task.
abstract: OBJECTIVE
  The aim of this study was to develop a standardized test to evaluate functional performance, including arm activity, of patients with chronic obstructive pulmonary disease.
  
  
  METHODS
  Fifty-seven patients (mean forced expiratory volume in 1 second % predicted = 46) were recruited to measure reproducibility (n = 10) of a grocery shelving task (GST) over 6 weeks without intervention and responsiveness (n = 47) of the task following a 6-week pulmonary rehabilitation program. In 25 of these patients, the pattern and magnitude of cardiorespiratory responses during the task were compared with the unsupported upper limb exercise test.
  
  
  RESULTS
  Time taken to perform the GST was highly reproducible over a 6-week period (ICC = 0.97). Patients demonstrated a significant 8.0% improvement (95% CI, 4.6-11.3) on the task following pulmonary rehabilitation. There were significant correlations for peak cardiorespiratory responses between the GST and the unsupported upper limb exercise test.
  
  
  CONCLUSIONS
  The findings suggest that a standardized GST is a reproducible, valid, and responsive functional outcome measure that incorporates unsupported arm activity for patients with chronic obstructive pulmonary disease.
authors.affiliation: Department of Physiotherapy, Austin Hospital, Heidelberg, Victoria, Australia. catherine.hill@austin.org.au
authors.forename: Catherine J
authors.initials: CJ
authors.lastname: Hill
authors.forename: Linda
authors.initials: L
authors.lastname: Denehy
authors.forename: Anne E
authors.initials: AE
authors.lastname: Holland
authors.forename: Christine F
authors.initials: CF
authors.lastname: McDonald
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D017063:Outcome Assessment, Health Care; D029424:Pulmonary Disease, Chronic Obstructive / Q000534:rehabilitation*; D020127:Recovery of Function; D015203:Reproducibility of Results; D013647:Task Performance and Analysis