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Mechanisms of Physical Activity Behavior Change for Prostate Cancer Survivors: A Cluster Randomized Controlled Trial

BACKGROUND: Exercise is beneficial for prostate cancer survivors. Therefore, understanding the mechanisms of physical activity (PA) behavior change is imperative. PURPOSE: The ENGAGE study was an exercise intervention for prostate cancer survivors, which improved vigorous physical activity (VPA) at...

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Autores principales: Craike, Melinda J, Gaskin, Cadeyrn J, Mohebbi, Mohammadreza, Courneya, Kerry S, Livingston, Patricia M
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6361272/
https://www.ncbi.nlm.nih.gov/pubmed/30124758
http://dx.doi.org/10.1093/abm/kax055
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author Craike, Melinda J
Gaskin, Cadeyrn J
Mohebbi, Mohammadreza
Courneya, Kerry S
Livingston, Patricia M
author_facet Craike, Melinda J
Gaskin, Cadeyrn J
Mohebbi, Mohammadreza
Courneya, Kerry S
Livingston, Patricia M
author_sort Craike, Melinda J
collection PubMed
description BACKGROUND: Exercise is beneficial for prostate cancer survivors. Therefore, understanding the mechanisms of physical activity (PA) behavior change is imperative. PURPOSE: The ENGAGE study was an exercise intervention for prostate cancer survivors, which improved vigorous physical activity (VPA) at postintervention and follow-up. The purpose of this study was to assess (a) whether the intervention improved social cognitive determinants of behavior and (b) the extent to which social cognitive determinants mediated the effect of the exercise intervention on VPA. METHODS: Overall, 147 men consented to be involved in the study (intervention = 54, usual care = 93). Data from baseline, postintervention (12 weeks) and follow-up (6 months) were used in this analysis. Social cognitive determinants were measured using appropriate measures. VPA was measured using an adapted version of the Leisure-Time Exercise Questionnaire. RESULTS: Compared with the control condition, men in the intervention condition had higher task self-efficacy postintervention (+16.23; 95% confidence interval [CI] +9.19 to +23.31; effect size [d] = 0.85, p < .001) and at follow-up (+12.58; 95% CI = +4.45 to +20.71, d = 0.50, p = .002). Task self-efficacy partially mediated the effect of the exercise intervention on VPA (indirect effect: B = 19.90; 95% CI 1.56 to 38.25, p = .033). CONCLUSION: The intervention improved the belief among prostate cancer survivors that they could perform challenging exercises for longer periods of time, which partially explained the positive effect of the intervention on VPA. AUSTRALIA AND NEW ZEALAND CLINICAL TRIALS REGISTRATION: ACTRN12610000609055.
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spelling pubmed-63612722019-03-28 Mechanisms of Physical Activity Behavior Change for Prostate Cancer Survivors: A Cluster Randomized Controlled Trial Craike, Melinda J Gaskin, Cadeyrn J Mohebbi, Mohammadreza Courneya, Kerry S Livingston, Patricia M Ann Behav Med Regular Articles BACKGROUND: Exercise is beneficial for prostate cancer survivors. Therefore, understanding the mechanisms of physical activity (PA) behavior change is imperative. PURPOSE: The ENGAGE study was an exercise intervention for prostate cancer survivors, which improved vigorous physical activity (VPA) at postintervention and follow-up. The purpose of this study was to assess (a) whether the intervention improved social cognitive determinants of behavior and (b) the extent to which social cognitive determinants mediated the effect of the exercise intervention on VPA. METHODS: Overall, 147 men consented to be involved in the study (intervention = 54, usual care = 93). Data from baseline, postintervention (12 weeks) and follow-up (6 months) were used in this analysis. Social cognitive determinants were measured using appropriate measures. VPA was measured using an adapted version of the Leisure-Time Exercise Questionnaire. RESULTS: Compared with the control condition, men in the intervention condition had higher task self-efficacy postintervention (+16.23; 95% confidence interval [CI] +9.19 to +23.31; effect size [d] = 0.85, p < .001) and at follow-up (+12.58; 95% CI = +4.45 to +20.71, d = 0.50, p = .002). Task self-efficacy partially mediated the effect of the exercise intervention on VPA (indirect effect: B = 19.90; 95% CI 1.56 to 38.25, p = .033). CONCLUSION: The intervention improved the belief among prostate cancer survivors that they could perform challenging exercises for longer periods of time, which partially explained the positive effect of the intervention on VPA. AUSTRALIA AND NEW ZEALAND CLINICAL TRIALS REGISTRATION: ACTRN12610000609055. Oxford University Press 2018-02-01 /pmc/articles/PMC6361272/ /pubmed/30124758 http://dx.doi.org/10.1093/abm/kax055 Text en © The Author(s) 2018. Published by Oxford University Press on behalf of the Society of Behavioral Medicine. http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Regular Articles
Craike, Melinda J
Gaskin, Cadeyrn J
Mohebbi, Mohammadreza
Courneya, Kerry S
Livingston, Patricia M
Mechanisms of Physical Activity Behavior Change for Prostate Cancer Survivors: A Cluster Randomized Controlled Trial
title Mechanisms of Physical Activity Behavior Change for Prostate Cancer Survivors: A Cluster Randomized Controlled Trial
title_full Mechanisms of Physical Activity Behavior Change for Prostate Cancer Survivors: A Cluster Randomized Controlled Trial
title_fullStr Mechanisms of Physical Activity Behavior Change for Prostate Cancer Survivors: A Cluster Randomized Controlled Trial
title_full_unstemmed Mechanisms of Physical Activity Behavior Change for Prostate Cancer Survivors: A Cluster Randomized Controlled Trial
title_short Mechanisms of Physical Activity Behavior Change for Prostate Cancer Survivors: A Cluster Randomized Controlled Trial
title_sort mechanisms of physical activity behavior change for prostate cancer survivors: a cluster randomized controlled trial
topic Regular Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6361272/
https://www.ncbi.nlm.nih.gov/pubmed/30124758
http://dx.doi.org/10.1093/abm/kax055
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