title: Reliability and concurrent validity of the Acti'MET calculator: A new tool to assess physical activity in cardiac rehabilitation.
abstract: OBJECTIVE
  We created a tool for assessing physical activity (PA), the Acti'MET calculator, to quickly estimate weekly energy expenditure. This study aimed to assess the metrological properties of the tool in cardiac rehabilitation (CR).
  
  
  METHODS
  Two examiners evaluated the reliability and concurrent validity of the tool with cardiac patients. The validity of the tool was assessed by comparison with other classical methods for measurement of PA such as the Dijon Physical Activity Score (PAS) and the International Physical Activity Questionnaire (IPAQ) score, the 6-min walk test (6MWT) and the cardiopulmonary maximal exercise test. Correlation was assessed by Pearson or Spearman correlation analysis.
  
  
  RESULTS
  For the 36 cardiac patients (mean age 55±11 years, 24 men), inter-rater and intra-rater reliabilities were strong: r=0.87 and r=0.98, respectively, both P<0.0001. We found a strong correlation of the Acti'MET score with the IPAQ score (r=0.88, P<0.0001), moderate correlation with the PAS (r=0.39, P<0.05) and 6MWT (r=0.54, P<0.01), and no correlation with peak power output.
  
  
  CONCLUSIONS
  The Acti'MET calculator is reliable, valid and easy to use for assessing PA in CR. This tool seems to well reflect the weekly PA, unlike the PAS, which evaluates PA on a yearly basis.
authors.affiliation: Department of Cardiac Rehabilitation, Toulouse University Hospital, 31073 Toulouse, France.
authors.forename: Julia
authors.initials: J
authors.lastname: Satge
authors.affiliation: National Institute of Health and Medical Research (INSERM), UMR-1048, Institute of Cardiovascular and Metabolic Diseases, 31432 Toulouse, France; Clinic of Saint-Orens, Cardiovascular and Pulmonary Rehabilitation Centre, 12, avenue de Revel, 31650 Saint-Orens-de-Gameville, France.
authors.forename: Thibaut
authors.initials: T
authors.lastname: Guiraud
authors.affiliation: Department of Cardiac Rehabilitation, Toulouse University Hospital, 31073 Toulouse, France; Faculty of sports sciences and MOVE Laboratory (EA6314), University of Poitiers, 86000 Poitiers, France.
authors.forename: Pierre
authors.initials: P
authors.lastname: Carette
authors.affiliation: Clinic of Saint-Orens, Cardiovascular and Pulmonary Rehabilitation Centre, 12, avenue de Revel, 31650 Saint-Orens-de-Gameville, France.
authors.forename: Richard
authors.initials: R
authors.lastname: Granger
authors.affiliation: Department of Cardiac Rehabilitation, Toulouse University Hospital, 31073 Toulouse, France; National Institute of Health and Medical Research (INSERM), UMR-1048, Institute of Cardiovascular and Metabolic Diseases, 31432 Toulouse, France. Electronic address: marclabrunee@gmail.com.
authors.forename: Marc
authors.initials: M
authors.lastname: Labrunee
mesh_terms: D000328:Adult; D000368:Aged; D000072038:Cardiac Rehabilitation / Q000592:standards / Q000706:statistics & numerical data*; D004734:Energy Metabolism; D015444:Exercise; D005080:Exercise Test; D005260:Female; D006306:Health Surveys / Q000295:instrumentation* / Q000592:standards; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D015203:Reproducibility of Results; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires; D016138:Walking
keywords: Cardiac rehabilitation; Clinical practice; Energy expenditure; Physical activity; Validation tool