| Autor: |
Anderson-Bill, Eileen Smith, Winett, Richard A, Wojcik, Janet R, Winett, Sheila G |
| Jazyk: |
angličtina |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
Journal of Medical Internet Research, Vol 13, Iss 1, p e27 (2011) |
| Druh dokumentu: |
article |
| ISSN: |
1438-8871 |
| DOI: |
10.2196/jmir.1614 |
| Popis: |
BackgroundEvaluation of online health interventions should investigate the function of theoretical mechanisms of behavior change in this new milieu. ObjectivesTo expand our understanding of how Web-based interventions influence behavior, we examined how changes at 6 months in participants’ psychosocial characteristics contributed to improvements at 16 months in nutrition, physical activity (PA), and weight management as a result of the online, social cognitive theory (SCT)-based Guide to Health intervention (WB-GTH). MethodsWe conducted recruitment, enrollment, and assessments online with 272 of 655 (41.5%) participants enrolling in WB-GTH who also completed 6- and 16-month follow-up assessments. Participants’ mean age was 43.68 years, 86% were female, 92% were white, mean education was 17.45 years, median income was US $85,000, 84% were overweight or obese, and 73% were inactive. Participants received one of two equally effective versions of WB-GTH. Structural equation analysis of theoretical models evaluated whether psychosocial constructs targeted by WB-GTH contributed to observed health behavior changes. ResultsThe longitudinal model provided good fit to the data (root mean square error of approximation |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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