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- W2361378612 abstract "Objective The purpose of the current study was to assess the stage validity of the FIT model(Four Steps from Inactivity to Activity)comprehensively,including(1)to test whether stage algorithm can appropriately assign individual physical activity into and inactive;(2)to assess whether there are discontinuity patterns and non-linear trends of psycho-social variables across stages of change in the assumption of FIT model. Methods In this cross-sectional design,2082 adult participants(aged 38.72 ± 8.67)including 1206 Chinese(57.9%)were investigated. The sensitivity,specificity,receiver operating characteristic curve(ROC),area under the curve(AUC)and Chi-square test were computed to evaluate stage algorithm validity and its differences in demographic variables,and planned contrast and polynomial contrast were employed to examine the discontinuity patterns and non-linear trends of psychological variables. Results(1)Sensitivity and specificity of stage algorithm were 92.8%and 81.5% respectively,AUC was 0.93,indicating that FIT model's stage algorithm is valid to discriminate active and inactive person. Additionally,there were no significant differences in gender and age,but in nationality and education level for sensitivity and specificity.(2)67.4% discontinuity patterns of psychosocial variables across adjacent stages were revealed. And there were significant nonlinear trends(quadratic,cubic and fourth-order terms)with respect to the psychosocial variables across the stages. Conclusion Most hypotheses related to stage validity in FIT model are proved in this study,which provides preliminary theoretical foundation for designing stage-matched intervention based on FIT model for promoting adults to attend and maintain physical activity in the future." @default.
- W2361378612 created "2016-06-24" @default.
- W2361378612 creator A5055803036 @default.
- W2361378612 date "2014-01-01" @default.
- W2361378612 modified "2023-09-26" @default.
- W2361378612 title "Assessing Stage Validity of Stage Model for Physical Activity Behavior:A Study on FIT Model" @default.
- W2361378612 hasPublicationYear "2014" @default.
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