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Báo cáo y học: "The validity and reliability of a home environment preschool-age physical activity questionnaire (Pre-PAQ)"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: The validity and reliability of a home environment preschool-age physical activity questionnaire (Pre-PAQ). | Dwyer et al. International Journal of Behavioral Nutrition and Physical Activity 2011 8 86 http www.ijbnpa.Org content 8 1 86 INTERNATIONAL JOURNAL OF BEHAVIORAL NUTRITION AND PHYSICAL ACTIVITY RESEARCH Open Access The validity and reliability of a home environment preschool-age physical activity questionnaire Pre-PAQ Genevieve M Dwyer1 2 Louise L Hardy 3 Jennifer K Peat43 and Louise A Baur2 33 Abstract Background There is a need for valid population level measures of physical activity in young children. The aim of this paper is to report the development and the reliability and validity of the Preschool-age Children s Physical Activity Questionnaire Pre-PAQ which was designed to measure activity of preschool-age children in the home environment in population studies. Methods Pre-PAQ was completed by 103 families and validated against accelerometry for 67 children mean age 3.8 years SD 0.74 males 53 . Pre-PAQ categorizes activity into five progressive levels stationary no movement stationary with limb or trunk movement slow medium or fast-paced activity . Pre-PAQ Levels 1-2 stationary activities were combined for analyses. Accelerometer data were categorized for stationary sedentary SED non-sedentary non-SED light LPA moderate MPA and vigorous VPA physical activity using manufacturer s advice stationary or the cut-points described by Sirard et al and Reilly et al. Bland-Altman methods were used to assess agreement between the questionnaire and the accelerometer measures for corresponding activity levels. Reliability of the Pre-PAQ over one week was determined using intraclass correlations ICC or kappa k values and percentage of agreement of responses between the two questionnaire administrations. Results Pre-PAQ had good agreement with LPA mean difference 1.9 mins.day-1 and VPA mean difference -4.8 mins.day-1 was adequate for stationary activity mean difference 7.6 mins.day-1 and poor for sedentary activity whether defined using the cut-points of Sirard et al mean .