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Träfflista för sökning "L773:1543 3080 ;pers:(Ainsworth BE)"

Sökning: L773:1543 3080 > Ainsworth BE

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  • Hagstromer, M, et al. (författare)
  • A checklist for evaluating the methodological quality of validation studies on self-report instruments for physical activity and sedentary behavior
  • 2012
  • Ingår i: Journal of physical activity & health. - : Human Kinetics. - 1543-5474 .- 1543-3080. ; 99 Suppl 1, s. S29-S36
  • Tidskriftsartikel (refereegranskat)abstract
    • The quality of methodological papers assessing physical activity instruments depends upon the rigor of a study’s design.Objectives:We present a checklist to assess key criteria for instrument validation studies.Process:A Medline/PubMed search was performed to identify guidelines for evaluating the methodological quality of instrument validation studies. Based upon the literature, a pilot version of a checklist was developed consisting of 21 items with 3 subscales: 1) quality of the reported data (9 items: assess whether the reported information is sufficient to make an unbiased assessment of the findings); 2) external validity of the results (3 items: assess the extent to which the findings are generalizable); 3) internal validity of the study (9 items: assess the rigor of the study design). The checklist was tested for interrater reliability and feasibility with 6 raters.Findings:Raters viewed the checklist as helpful for reviewing studies. They suggested minor wording changes for 8 items to clarify intent. One item was divided into 2 items for a total of 22 items.Discussion:Checklists may be useful to assess the quality of studies designed to validate physical activity instruments. Future research should test checklist internal consistency, test-retest reliability, and criterion validity.
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3.
  • Hagstromer, M, et al. (författare)
  • Comparison of a subjective and an objective measure of physical activity in a population sample
  • 2010
  • Ingår i: Journal of physical activity & health. - : Human Kinetics. - 1543-3080 .- 1543-5474. ; 7:4, s. 541-550
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this study was to compare physical activity components in the long, self-administrated version of IPAQ with an accelerometer in a population sample.Methods:In total 980 subjects (18-65 years) wore an accelerometer (Actigraph) for 7 consecutive days and thereafter filled in the IPAQ. Measures of total physical activity, time spent in moderate and in vigorous activity as well as time spent sitting as assessed by the IPAQ and the Actigraph were compared.Results:The results showed significant low to moderate correlations (Rs = 0.07−0.36) between the 2 instruments and significantly (P < .001) higher values for sitting and vigorous intensity physical activity from the IPAQ compared with the Actigraph. The higher the values reported by the IPAQ the bigger differences were seen between the instruments. Comparison between the tertiles of total physical activity by the 2 instruments showed significant overall association with consistent agreement in the low and the high tertiles.Conclusion:The long form of IPAQ is a valid measure of physical activity in population research. However, the IPAQ likely overestimates actual physical activity as shown by its limited ability to classify adults into low and high categories of physical activity based on accelerometer data.
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  • Resultat 1-3 av 3
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Hagstromer, M (3)
Sjostrom, M (2)
Kwak, L. (1)
Bauman, A (1)
Bull, F (1)
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Craig, CL (1)
Sallis, JF (1)
Pratt, M (1)
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Oja, P (1)
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Karolinska Institutet (3)
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