title: Reproducibility, validity and responsiveness of the 200-metre fast walk test in patients undergoing cardiac rehabilitation.
abstract: OBJECTIVE
  To investigate the reliability, validity and responsiveness of the 200-metre fast walk test in patients with coronary artery disease engaged in a cardiac rehabilitation programme.
  
  
  METHODS
  Descriptive study.
  
  
  METHODS
  Tertiary care hospital.
  
  
  METHODS
  Thirty stable patients with coronary artery disease (51.9 ± 8.7 years), referred to the cardiac rehabilitation department after an acute coronary syndrome.
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  Six-minute walk test distance, time to perform the 200-m fast walk test, peak power output of the graded maximal exercise test, before and after the programme; SF-36 quality of life questionnaire at baseline. Walk tests were performed twice at baseline to assess reliability.
  
  
  RESULTS
  The 200-m fast walk test was highly reliable (ICC = 0.97). It was significantly correlated with the graded maximal exercise test peak power and the 6-minute walk test at baseline (r = -0.417; P < 0.05; and r = -0.566; P < 0.01, respectively) and after the training programme (r = -0.460, P < 0.05; and r = -0.926; P < 0.01, respectively). At baseline, there was a strong correlation between the 200-m fast walk test time and the physical component score of the SF-36 (r = -0.77; P < 0.01), but not between the 200-m fast walk test time and the SF-36 mental component score. Mean 200-m fast walk test time was significantly different between the patients performing ≤90 W (n = 11) or ≥100 W (n = 19) at the baseline graded maximal exercise test (121.7 ± 13.6 vs. 115.5 ± 10.1 seconds; P < 0.05). The responsiveness was strong with a standardized response mean at 1.11.
  
  
  CONCLUSIONS
  The 200-m fast walk test is a reliable, valid and responsive high-intensity walk test in patients with coronary artery disease after an acute coronary syndrome. It can thus give additional information to that given by the 6-minute walk test and the graded maximal exercise test.
authors.affiliation: Pôle Rééducation-Réadaptation, Centre Hospitalier Universitaire de Dijon, Dijon, France. vincent.gremeaux@chu-dijon.fr
authors.forename: V
authors.initials: V
authors.lastname: Gremeaux
authors.forename: A
authors.initials: A
authors.lastname: Hannequin
authors.forename: D
authors.initials: D
authors.lastname: Laroche
authors.forename: G
authors.initials: G
authors.lastname: Deley
authors.forename: J
authors.initials: J
authors.lastname: Duclay
authors.forename: J M
authors.initials: JM
authors.lastname: Casillas
mesh_terms: D003324:Coronary Artery Disease / Q000175:diagnosis* / Q000534:rehabilitation*; D005080:Exercise Test / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D016138:Walking