- Title
- Targeting dietary restraint to reduce binge eating : a randomised controlled trial of a blended internet- and smartphone app-based intervention
- Creator
- Linardon, Jake; Messer, Mariel; Shatte, Adrian; Skvarc, David; Rosato, John; Rathgen, April; Fuller-Tyszkiewicz, Matthew
- Date
- 2023
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/197838
- Identifier
- vital:18950
- Identifier
-
https://doi.org/10.1017/S0033291721002786
- Identifier
- ISSN:0033-2917 (ISSN)
- Abstract
- Background Existing internet-based prevention and treatment programmes for binge eating are composed of multiple distinct modules that are designed to target a broad range of risk or maintaining factors. Such multi-modular programmes (1) may be unnecessarily long for those who do not require a full course of intervention and (2) make it difficult to distinguish those techniques that are effective from those that are redundant. Since dietary restraint is a well-replicated risk and maintaining factor for binge eating, we developed an internet- and app-based intervention composed solely of cognitive-behavioural techniques designed to modify dietary restraint as a mechanism to target binge eating. We tested the efficacy of this combined selective and indicated prevention programme in 403 participants, most of whom were highly symptomatic (90% reported binge eating once per week). Method Participants were randomly assigned to the internet intervention (n = 201) or an informational control group (n = 202). The primary outcome was objective binge-eating frequency. Secondary outcomes were indices of dietary restraint, shape, weight, and eating concerns, subjective binge eating, disinhibition, and psychological distress. Analyses were intention-to-treat. Results Intervention participants reported greater reductions in objective binge-eating episodes compared to the control group at post-test (small effect size). Significant effects were also observed on each of the secondary outcomes (small to large effect sizes). Improvements were sustained at 8 week follow-up. Conclusions Highly focused digital interventions that target one central risk/maintaining factor may be sufficient to induce meaningful change in core eating disorder symptoms. © The Author(s), 2021. Published by Cambridge University Press.
- Publisher
- Cambridge University Press
- Relation
- Psychological Medicine Vol. 53, no. 4 (2023), p. 1277-1287
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- Copyright © The Author(s), 2021
- Subject
- 3202 Clinical sciences; 5202 Biological psychology; 5203 Clinical and health psychology; Binge eating; E-mental health; Eating disorders; Prevention; Randomised controlled trial; Treatment
- Reviewed
- Funder
- J.L. (APP1196948) received a National Health and Medical Research Council Investigator Grant.
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