title: Reproducibility of the six-minute walk test and Glittre ADL-test in patients hospitalized for acute and exacerbated chronic lung disease.
abstract: BACKGROUND
  The 6-minute walk test (6MWT) and the Glittre ADL-test (GT) are used to assess functional capacity and exercise tolerance; however, the reproducibility of these tests needs further study in patients with acute lung diseases.
  
  
  OBJECTIVE
  The aim of this study was to investigate the reproducibility of the 6MWT and GT performed in patients hospitalized for acute and exacerbated chronic lung diseases.
  
  
  METHODS
  48 h after hospitalization, 81 patients (50 males, age: 52 ± 18 years, FEV1: 58 ± 20% of the predicted value) performed two 6MWTs and two GTs in random order on different days.
  
  
  RESULTS
  There was no difference between the first and second 6MWT (median 349 m [284-419] and 363 m [288-432], respectively) (ICC: 0.97; P < 0.0001). A difference between the first and second tests was found in GT (median 286 s [220-378] and 244 s [197-323] respectively; P < 0.001) (ICC: 0.91; P < 0.0001).
  
  
  CONCLUSIONS
  Although both the 6MWT and GT were reproducible, the best results occurred in the second test, demonstrating a learning effect. These results indicate that at least two tests are necessary to obtain reliable assessments.
authors.affiliation: Universidade Nove de Julho, São Paulo, SP, Brazil.
authors.forename: Anderson
authors.initials: A
authors.lastname: José
authors.affiliation: Universidade Nove de Julho, São Paulo, SP, Brazil.
authors.forename: Simone
authors.initials: S
authors.lastname: Dal Corso
mesh_terms: D000203:Activities of Daily Living; D000208:Acute Disease; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D018450:Disease Progression; D005260:Female; D006760:Hospitalization; D006801:Humans; D008171:Lung Diseases / Q000503:physiopathology* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D000070857:Walk Test