OBJECTIVES: to evaluate the reproducibility of a physical activity assessment questionnaire for children aged between 7 and 10 years among participants of the Saúdes Vitória Study in Espírito Santo State, Brazil. METHODS: a cross-sectional study was carried out in a random sample of 91 children enrolled in public and private sector schools in the municipality. A structured questionnaire with 13 questions was sent to the home of selected children, to be filled out twice, with an interval of 15 days. To evaluate the reproducibility the Kappa agreement test was used for the qualitative variables, and Pearson's correlation or Spearman's r for the quantitative ones, followed by a scatter analysis. RESULTS: the Kappa agreement indices were significant for all qualitative variables and varied from moderate to high (k= 0.72 - 0.98). Likewise, the correlation coefficients ranged from moderate to high (r= 0.51 - 1.00), except for time spent playing video games and duration of second sport, which showed no significant correlation. CONCLUSIONS: Saúdes questionnaire enabled data on physical and sedentary activities to be collected with a good level of reproducibility, although there are limitations in the population under study regarding the quantification of the time spent on less frequent activities, such as playing video games or practicing a second sport.
Students; Motor activity; Reproducibility of results; Questionnaires
