Logo do repositório
 
Publicação

Testing motivational and self-regulatory mechanisms of action on device-measured physical activity in the context of a weight loss maintenance digital intervention: a secondary analysis of the NoHoW trial

2023Artigo científico Acesso aberto
Ver registo simples
dc.contributor.authorEncantado, Jorge
dc.contributor.authorMarques, Marta M.
dc.contributor.authorGouveia, Maria João
dc.contributor.authorSantos, Inês
dc.contributor.authorSánchez-Oliva, David
dc.contributor.authorO’Driscoll, Ruairi
dc.contributor.authorTuricchi, Jake
dc.contributor.authorLarsen, Sofus C.
dc.contributor.authorHorgan, Graham
dc.contributor.authorTeixeira, Pedro J.
dc.contributor.authorStubbs, R. James
dc.contributor.authorHeitmann, Berit Lilienthal
dc.contributor.authorPalmeira, António L.
dc.date.accessioned2023-02-17T14:26:31Z
dc.date.available2023-02-17T14:26:31Z
dc.date.issued2023
dc.description© 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)pt_PT
dc.description.abstractBackground: To date, few digital behavior change interventions for weight loss maintenance focusing on long- term physical activity promotion have used a sound intervention design grounded on a logic model under- pinned by behavior change theories. The current study is a secondary analysis of the weight loss maintenance NoHoW trial and investigated putative mediators of device-measured long-term physical activity levels (six to 12 months) in the context of a digital intervention. Methods: A subsample of 766 participants (Age = 46.2 ± 11.4 years; 69.1% female; original NoHoW sample: 1627 participants) completed all questionnaires on motivational and self-regulatory variables and had all device- measured physical activity data available for zero, six and 12 months. We examined the direct and indirect effects of Virtual Care Climate on post intervention changes in moderate-to-vigorous physical activity and number of steps (six to 12 months) through changes in the theory-driven motivational and self-regulatory mechanisms of action during the intervention period (zero to six months), as conceptualized in the logic model. Results: Model 1 tested the mediation processes on Steps and presented a poor fit to the data. Model 2 tested mediation processes on moderate-to-vigorous physical activity and presented poor fit to the data. Simplified models were also tested considering the autonomous motivation and the controlled motivation variables inde- pendently. These changes yielded good results and both models presented very good fit to the data for both outcome variables. Percentage of explained variance was negligible for all models. No direct or indirect effects were found from Virtual Care Climate to long term change in outcomes. Indirect effects occurred only between the sequential paths of the theory-driven mediators. Conclusion: This was one of the first attempts to test a serial mediation model considering psychological mechanisms of change and device-measured physical activity in a 12-month longitudinal trial. The model explained a small proportion of variance in post intervention changes in physical activity. We found different pathways of influence on theory-driven motivational and self-regulatory mechanisms but limited evidence that these constructs impacted on actual behavior change. New approaches to test these relationships are needed. Challenges and several alternatives are discussed.pt_PT
dc.description.sponsorshipThis project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 643309.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationEncantado, J., et al. (2023). Psychology of Sport and Exercise, 64, [102314]pt_PT
dc.identifier.doi10.1016/j.psychsport.2022.102314pt_PT
dc.identifier.eissn1878-5476
dc.identifier.issn1469-0292
dc.identifier.urihttp://hdl.handle.net/10451/56372
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationEvidence-based ICT tools for weight loss maintenance
dc.relation.publisherversionhttps://www.sciencedirect.com/journal/psychology-of-sport-and-exercisept_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectPhysical activitypt_PT
dc.subjectMotivationpt_PT
dc.subjectSelf-regulationpt_PT
dc.subjectDigital interventionpt_PT
dc.subjectWeight loss maintenancept_PT
dc.subjectWeight regain preventionpt_PT
dc.titleTesting motivational and self-regulatory mechanisms of action on device-measured physical activity in the context of a weight loss maintenance digital intervention: a secondary analysis of the NoHoW trialpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumber643309
oaire.awardTitleEvidence-based ICT tools for weight loss maintenance
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/643309/EU
oaire.citation.titlePsychology of Sport and Exercisept_PT
oaire.citation.volume64pt_PT
oaire.fundingStreamH2020
person.familyNameConde Encantado Paulo
person.familyNameChaparro Roque dos Santos
person.familyNameTeixeira
person.givenNameJorge Eduardo
person.givenNameInês
person.givenNamePedro
person.identifierN-1856-2016
person.identifier.ciencia-id0611-B42E-407D
person.identifier.ciencia-id8E14-4B1D-9F4E
person.identifier.ciencia-idAC16-6149-0671
person.identifier.orcid0000-0003-0542-8340
person.identifier.orcid0000-0002-1638-8551
person.identifier.orcid0000-0001-7202-0527
person.identifier.ridC-9817-2010
person.identifier.scopus-author-id7005895215
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationf456cad2-d399-4c5a-ba05-c4d5f19a46ff
relation.isAuthorOfPublication6e672e07-deab-42de-ac5a-8d91cd617873
relation.isAuthorOfPublication80931801-2b7f-4d55-aa31-ddaf27aef872
relation.isAuthorOfPublication.latestForDiscovery6e672e07-deab-42de-ac5a-8d91cd617873
relation.isProjectOfPublicationdb2f6205-8645-4dc1-8be3-2ffbaade0f95
relation.isProjectOfPublication.latestForDiscoverydb2f6205-8645-4dc1-8be3-2ffbaade0f95

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura
Nome:
Testing_motivational.pdf
Tamanho:
1.77 MB
Formato:
Adobe Portable Document Format
Ver/Abrir
Licença
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
license.txt
Tamanho:
1.2 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Ver/Abrir

Coleções

FM-LN-Artigos em Revistas Internacionais