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Permanent link (DOI): https://doi.org/10.7939/R3KM4V
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An Internet-Based Intervention for Promoting and Maintaining Physical Activity in Thai University-Aged Females: A Randomized Controlled Trial Open Access
- Other title
Weekly leisure-time activity score
Social cognitive theory
- Type of item
- Degree grantor
University of Alberta
- Author or creator
- Supervisor and department
Berry, Tanya (Physical Education and Recreation)
- Examining committee member and department
Mummery, Kerry (Physical Education and Recreation)
Davenport, Margie (Physical Education and Recreation)
Vandelanotte, Corneel (Institute for Health and Social Sciences, Central Queensland University)
Walker, Gordon (Physical Education and Recreation)
Spence, John (Physical Education and Recreation)
Physical Education and Recreation
- Date accepted
- Graduation date
Doctor of Philosophy
- Degree level
Introduction: Thai female students are not likely to participate in leisure-time physical activity (PA). This dissertation comprised two studies that examined the efficacy of a Social Cognitive Theory (SCT) based internet intervention PA designed to promote and maintain leisure-time PA in university-aged female students in Thailand.
Methods: Study 1. Three steps were used: (1) translation, back-translation and expert committee confirmation; (2) test-retest reliability; and (3) exploratory factor analysis. Study 2. SCT and intervention mapping (IM) were used as the theoretical frameworks in developing the SCT-based internet intervention PA program. A 3-month randomized control trial intervention was conducted employing a Solomon four-group design with a 3-month follow-up assessment.
Results: Study 1 revealed that the Thai versions of the questionnaires have acceptable test-retest reliability, concurrent validity, construct validity, and internal consistency reliability. The questionnaires have suitable psychometric properties and can be used to assess leisure-time PA, exercise-related self-efficacy, outcome expectations and self-regulation in Thai female undergraduate students. Study 2 revealed that there were no pretest sensitization effects on any outcome. The internet intervention significantly increased steps, leisure-time activity score (LTAS), SCT variables and reduced resting heart rate (RHR) at the end of the intervention. With the exception of RHR, the intervention effects on these variables also remained at the 3-month follow-up. The intervention had no effects on Predicted Vo2Max at either the end of the intervention or the 3-month follow-up. The intervention effects on weekly LTAS at the end of the intervention were partially mediated by self-efficacy and self-regulation. Self-regulation also partially mediated changes in steps/day at the end of the intervention.
Conclusions: The Thai versions of the questionnaires were found to be valid and reliable measures and can be used for conducting research and interventions that target health behaviour changes in the Thai population. Also, the SCT-based internet intervention program is effective in promoting and maintaining leisure-time PA in university-aged female students in Thailand.
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- Citation for previous publication
Sriramatr, S., Berry, T. R., & Rodgers, W. (2013). Validity and reliability of Thai versions of questionnaires measuring leisure-time PA, exercise-related self-efficacy, outcome expectations and self-regulation. Pacific Rim International Journal of Nursing Research, 17, 203-216.Sriramatr, S., Berry, T. R., & Spence, J. C. (under review). An internet-based intervention for promoting and maintaining PA in Thai university-aged females: a randomized controlled trial.
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