title: Validation of the Regicor Short Physical Activity Questionnaire for the Adult Population.
abstract: OBJECTIVE
  To develop and validate a short questionnaire to estimate physical activity (PA) practice and sedentary behavior for the adult population.
  
  
  METHODS
  The short questionnaire was developed using data from a cross-sectional population-based survey (n = 6352) that included the Minnesota leisure-time PA questionnaire. Activities that explained a significant proportion of the variability of population PA practice were identified. Validation of the short questionnaire included a cross-sectional component to assess validity with respect to the data collected by accelerometers and a longitudinal component to assess reliability and sensitivity to detect changes (n = 114, aged 35 to 74 years).
  
  
  RESULTS
  Six types of activities that accounted for 87% of population variability in PA estimated with the Minnesota questionnaire were selected. The short questionnaire estimates energy expenditure in total PA and by intensity (light, moderate, vigorous), and includes 2 questions about sedentary behavior and a question about occupational PA. The short questionnaire showed high reliability, with intraclass correlation coefficients ranging between 0.79 to 0.95. The Spearman correlation coefficients between estimated energy expenditure obtained with the questionnaire and the number of steps detected by the accelerometer were as follows: 0.36 for total PA, 0.40 for moderate intensity, and 0.26 for vigorous intensity. The questionnaire was sensitive to detect changes in moderate and vigorous PA (correlation coefficients ranging from 0.26 to 0.34).
  
  
  CONCLUSIONS
  The REGICOR short questionnaire is reliable, valid, and sensitive to detect changes in moderate and vigorous PA. This questionnaire could be used in daily clinical practice and epidemiological studies.
authors.affiliation: Cardiology Department, Hospital del Mar, Barcelona, Spain.|IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
authors.forename: Luis
authors.initials: L
authors.lastname: Molina
authors.affiliation: Gerencia de Atención Primaria de Mallorca - Ibsalut, Mallorca, Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Sarmiento
authors.affiliation: IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
authors.forename: Judith
authors.initials: J
authors.lastname: Peñafiel
authors.affiliation: ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.
authors.forename: David
authors.initials: D
authors.lastname: Donaire
authors.affiliation: ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain.|Universitat Pompeu Fabra (UPF), Barcelona, Spain.|CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain.
authors.forename: Judith
authors.initials: J
authors.lastname: Garcia-Aymerich
authors.affiliation: Cardiology Department, Hospital del Mar, Barcelona, Spain.|IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
authors.forename: Miquel
authors.initials: M
authors.lastname: Gomez
authors.affiliation: Cardiology Department, Hospital del Mar, Barcelona, Spain.|IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
authors.forename: Mireia
authors.initials: M
authors.lastname: Ble
authors.affiliation: Cardiology Department, Hospital del Mar, Barcelona, Spain.|IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
authors.forename: Sonia
authors.initials: S
authors.lastname: Ruiz
authors.affiliation: IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
authors.forename: Albert
authors.initials: A
authors.lastname: Frances
authors.affiliation: IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.|CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain.
authors.forename: Helmut
authors.initials: H
authors.lastname: Schröder
authors.affiliation: IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
authors.forename: Jaume
authors.initials: J
authors.lastname: Marrugat
authors.affiliation: IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
authors.forename: Roberto
authors.initials: R
authors.lastname: Elosua
mesh_terms: D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D004734:Energy Metabolism; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology*; D011795:Surveys and Questionnaires / Q000592:standards*