Understanding low adherence to an exercise program for adolescents with obesity: The HEARTY trial

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dc.contributor.authorAlberga, Angela S.
dc.contributor.authorSigal, R. J.
dc.contributor.authorSweet, Shane Norman
dc.contributor.authorDoucette, Steve
dc.contributor.authorRussell-Mayhew, Shelly
dc.contributor.authorTulloch, Heather
dc.contributor.authorKenny, Glen P.
dc.contributor.authorPrud'homme, Denis
dc.contributor.authorHadjiyannakis, S.
dc.contributor.authorGoldfield, G. S.
dc.date.accessioned2024-06-11T22:50:12Z
dc.date.available2024-06-11T22:50:12Z
dc.date.issued2019-08
dc.descriptionAlberga, A. S., Sigal, R. J., Sweet, S. N., Doucette, S., Russell-Mayhew, S., Tulloch, H., Kenny, G. P., Prud'homme, D., Hadjiyannakis, S., & Goldfield, G. S. (2019). Understanding low adherence to an exercise program for adolescents with obesity: The HEARTY trial. Obesity Science & Practice, 5(5), 437–448.
dc.description.abstractIntroduction: Despite efforts to improve adherence to physical activity interventions in youth with obesity, low adherence and attrition remain areas of great concern. Objective: The study was designed to determine which physiological and/or psychological factors predicted low adherence in adolescents with obesity enrolled in a 6-month exercise intervention study aimed to improve body composition. Methods: Three hundred four adolescents with obesity aged 14-18 years who volunteered for the HEARTY (Healthy Eating Aerobic and Resistance Training in Youth) randomized controlled trial completed physiological (body mass index, waist circumference, per cent body fat, resting metabolic rate and aerobic fitness) and psychological (body image, mood, self-esteem and self-efficacy) measures. Results: One hundred forty-one out of 228 (62%) randomized to exercise groups had low adherence (completed <70% of the prescribed four exercise sessions per week) to the intervention protocol. Logistic regression revealed that there were no baseline demographic or physiological variables that predicted low adherence in the participants. Appearance concern (a subscale of body image) (odds ratio [OR] 1.46, 95% confidence interval [CI]: 1.01, 2.1, P = 0.04), depressive mood (OR 1.12, 95% CI: 1.01, 1.23, P = 0.03) and confused mood (OR 1.16, 95% CI: 1.05, 1.27, P = 0.003) (two subscales of mood) were significant predictors of low adherence. Conclusions: Adolescents with obesity who had higher appearance concerns and depressive and confused moods were less likely to adhere to exercise. Body image and mood should be screened to identify adolescents who may be at high risk of poor adherence and who may need concurrent or treatment support to address these psychological issues to derive maximal health benefits from an exercise programme.
dc.description.grantingagencyCanadian Institutes of Health Research (CIHR)
dc.identifier.citationAlberga A. S., Sigal R. J., Sweet S. N., Doucette S., Russell-Mayhew S., Tulloch H., Kenny G. P., Prud'homme D., Hadjiyannakis S., and Goldfield G. S. (2019) Understanding low adherence to an exercise programme for adolescents with obesity: the HEARTY trial, Obesity Science & Practice. 5: 437–448. doi: https://doi.org/10.1002/osp4.357.
dc.identifier.doihttps://doi.org/10.1002/osp4.357
dc.identifier.grantnumberMCT-71979
dc.identifier.urihttps://hdl.handle.net/1880/118877
dc.language.isoenen
dc.publisherJohn Wiley & Sons Ltd, World Obesity and The Obesity Society
dc.publisher.facultyWerklund School of Educationen
dc.publisher.hasversionpublishedVersion
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.policyhttps://authorservices.wiley.com/author-resources/Journal-Authors/open-access/index.html
dc.rightsUnless otherwise indicated, this material is protected by copyright and has been made available with authorization from the copyright owner. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectattrition
dc.subjectbody image
dc.subjectdropout
dc.subjectmood
dc.titleUnderstanding low adherence to an exercise program for adolescents with obesity: The HEARTY trial
dc.typeArticle
ucalgary.scholar.levelFaculty
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