Document Type

Journal Article

Publication Title

BMC Medical Informatics and Decision Making

Volume

21

Issue

23

First Page

1

Last Page

16

Publisher

BMC / Springer Nature

School

Western Australian Academy of Performing Arts (WAAPA)

RAS ID

32689

Funders

Cancer Council Western Australia Western Australian Department of Health

Comments

Nicholas, J. C., Ntoumanis, N., Smith, B. J., Quested, E., Stamatakis, E., & Thøgersen-Ntoumani, C. (2021). Development and feasibility of a mobile phone application designed to support physically inactive employees to increase walking. BMC Medical Informatics and Decision Making, 21, article 23. https://doi.org/10.1186/s12911-021-01391-3

Abstract

© 2021, The Author(s). Background: Physical inactivity is a global health concern. mHealth interventions have become increasingly popular, but to date, principles of effective communication from Self-Determination Theory have not been integrated with behavior change techniques to optimize app effectiveness. We outline the development of the START app, an app combining SDT principles and 17 purposefully chosen BCTs to support inactive office employees to increase their walking during a 16-week randomized controlled trial. We also explored acceptability, engagement with, associations between app usage and behavioral engagement, and perceived impact of the app in supporting behavior change. Methods: Following development, fifty insufficiently physically active employees (M age = 44.21 ± 10.95 years; BMI = 29.02 ± 5.65) were provided access and instructions on use of the app. A mixed methods design was used to examine feasibility of the app, including the User Mobile App Rating Scale, app engagement data, step counts, and individual interviews. Linear mixed modeling and inductive thematic analysis were used to analyze quantitative and qualitative data, respectively. Results: Walkers rated the app quality favorably (M = 3.68 out of 5). Frequency of entering step counts (i.e., frequency of self-monitoring) on a weekly basis positively predicted weekly step counts measured via Fitbits at both the between-and within-individual levels. App features (entering daily step counts, reminders, and motivational messages) were perceived to assist walkers in fostering goal achievement by building competence and via self-monitoring. Conclusions: The START app may be a useful component of walking interventions designed to increase walking in the workplace. Apps designed to promote walking behavior may be effective if they target users’ competence and integrate BCTs. Trial Registration: This study was part of a pilot larger randomized controlled trial, in which a component of the intervention involved the use of the mobile app. The trial was retrospectively registered with the Australian and New Zealand Clinical Trials Registry (ACTRN12618000807257) on 11 May 2018 https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=375049&isReview=true.

DOI

10.1186/s12911-021-01391-3

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Research Themes

Health

Priority Areas

Exercise, nutrition, lifestyle and other interventions for optimal health across the lifespan

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