title: [Validity of the international physical activity questionnaire in the Catalan population (Spain)].
abstract: OBJECTIVE
  To validate the short form of the International Physical Activity Questionnaire in the population of Catalonia (Spain).
  
  
  METHODS
  A convenience sample wore a uniaxial accelerometer (MTI Actigraph, Computer Science and Application's Inc.) for 7 days and completed the questionnaire, translated to Catalan. The sensitivity and specificity of the questionnaire in measuring adherence to physical activity recommendations were also tested.
  
  
  RESULTS
  Valid data were obtained from 55 participants (29 women). The mean age was 40.5 years. Moderate correlations were found for total physical activity (r=0.27; p<0.05) and the time spent in vigorous activity (r=0.38; p<0.01). Sensitivity was 75% and specificity was 75% (κ=0.33).
  
  
  CONCLUSIONS
  The short Catalan version of the International Physical Activity Questionnaire had acceptable validity for the measurement of total and vigorous physical activity. This questionnaire can be used to identify adherence to physical activity recommendations in the Catalan population.
authors.affiliation: Fundación para la Investigación Nutricional, Centro de Investigación en Nutrición Comunitaria, Parque Científico de Barcelona, Universidad de Barcelona, Barcelona, España.
authors.forename: Blanca
authors.initials: B
authors.lastname: Román Viñas
authors.forename: Lourdes
authors.initials: L
authors.lastname: Ribas Barba
authors.forename: Joy
authors.initials: J
authors.lastname: Ngo
authors.forename: Lluís
authors.initials: L
authors.lastname: Serra Majem
mesh_terms: D061725:Accelerometry; D000328:Adult; D015444:Exercise; D005260:Female; D019983:Guideline Adherence; D017408:Guidelines as Topic; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D012680:Sensitivity and Specificity; D013030:Spain; D011795:Surveys and Questionnaires