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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

Descriptions

Other title
Subject/Keyword
Self-regulation
Internet-based intervention
Weekly leisure-time activity score
Social cognitive theory
Outcome expectations
Self-efficacy
Physical activity
Steps/day
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Sriramatr, Sonthaya
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)
Department
Physical Education and Recreation
Specialization

Date accepted
2013-09-19T14:52:32Z
Graduation date
2013-11
Degree
Doctor of Philosophy
Degree level
Doctoral
Abstract
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.
Language
English
DOI
doi:10.7939/R3KM4V
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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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