Evidence map›Paper›PMID 33413209›Full record

ArticleBMC public health2021

Examining social-cognitive theory constructs as mediators of behaviour change in the active team smartphone physical activity program: a mediation analysis.

Amelia V Romeo, Sarah M Edney, Ronald C Plotnikoff, Tim Olds, Corneel Vandelanotte, Jillian Ryan, Rachel Curtis, Carol A Maher

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In one paragraph

Article in BMC public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Amelia V RomeoSchool of Health Sciences, City East Campus, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
Sarah M EdneySchool of Health Sciences, City East Campus, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
Ronald C PlotnikoffPriority Research Centre for Physical Activity and Nutrition, University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.
Tim OldsSchool of Health Sciences, City East Campus, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
Corneel VandelanotteAppleton Institute, CQUniversity, Building 7, Bruce Highway, North Rockhampton, Qld, 4702, Australia.
Jillian RyanCommonwealth Scientific and Industrial Research Organisation, Adelaide, Australia.
Rachel CurtisSchool of Health Sciences, City East Campus, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
Carol A MaherSchool of Health Sciences, City East Campus, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia. carol.maher@unisa.edu.au.ORCID 0000-0002-8676-0224

Funding

Australian National Health and Medical Research Council 1125913
6 · The paper itself

Abstract

backgroundRegular engagement in physical activity has well-established physical and psychological health benefits. Despite this, over a quarter of the global adult population is insufficiently physically active. Physical activity interventions grounded in behaviour change theory, such as the social-cognitive theory, are widely considered to be more effective than non-theoretical approaches. Such interventions set out to intervene on the ultimate outcome (physical activity), but also influence intermediate factors (social-cognitive theory constructs) which in turn, are believed to influence physical activity behaviour. The primary aim of the study was to use mediation analysis to examine whether changes in the social-cognitive theory and related constructs, in particular self-efficacy, outcome expectations, intentions, barriers and goal setting, mediated the effects of a smartphone-based social networking physical activity intervention.

methodsMediation analyses were conducted using the PROCESS Macro in SPSS to (i) calculate the regression coefficients for the effect of the independent variable (group allocation) on the hypothesised mediators (social-cognitive theory constructs), (ii) calculate the regression coefficient for the effect of the hypothesised mediators (social-cognitive theory constructs) on the dependent variable (objectively measured physical activity or self-report physical activity), independent of group assignment and (iii) determine the total, direct and indirect intervention effects.

resultsData from 243 participants were included in the mediation analysis. There was no evidence of mediation for change in objectively measured MVPA or self-reported MVPA.

conclusionsThere was no conclusive evidence that any of the social-cognitive theory constructs mediated the relationship between an app-based intervention and change in physical activity. Ongoing efforts to develop and understand components that make physical activity app-based interventions effective are recommended.

trial registrationThis trial was registered with the Australian and New Zealand Clinical Trial Registry ( ACTRN12617000113358 , date of registration 23 January, 2017).

Indexed as

Mediation AnalysisSmartphoneAdultAustraliaCognitionExerciseHumansNew ZealandAppBehaviour changeHealth behaviourInterventionMediation analysisMediatorsPhysical activitySelf-efficacySmartphoneSocial-cognitive theory

Identifiers

PMID33413209
PMCPMC7792171

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.