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Behav. Sci. 2017, 7(4), 76; doi:10.3390/bs7040076

Efficacy of Web-Based Weight Loss Maintenance Programs: A Randomized Controlled Trial Comparing Standard Features Versus the Addition of Enhanced Personalized Feedback over 12 Months

1
Nutrition and Dietetics, School of Health Sciences, Faculty of Health and Medicine, The University of Newcastle, Callaghan, NSW 2308, Australia
2
Priority Research Centre in Physical Activity and Nutrition, The University of Newcastle, Callaghan, NSW 2308, Australia
3
School of Education, Faculty of Education and Arts, The University of Newcastle, Callaghan, NSW 2308, Australia
4
Clinical Research Design, IT and Statistical Support Unit, Hunter Medical Research Institute, Level 3 Pod, HMRI building Lot 1, Kookaburra Circuit, New Lambton Heights, NSW 2305, Australia
5
School of Medicine and Public Health, Faculty of Health and Medicine, The University of Newcastle, Callaghan, NSW 2308, Australia
6
School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan, NSW 2308, Australia
*
Author to whom correspondence should be addressed.
Received: 31 July 2017 / Revised: 28 October 2017 / Accepted: 2 November 2017 / Published: 8 November 2017
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Abstract

Few randomized controlled trials (RCT) have evaluated the efficacy of web-based programs targeting maintenance of lost weight. The aims of this study were to evaluate two versions of a commercially available web-based weight loss maintenance (WLM) program and examine whether the provision of enhanced feedback was associated with better WLM. The study was an assessor-blinded RCT of change in body mass index (BMI) over 12 months WLM. Participants were 227 adults (44% male, 42.3 ± 10.1 years, BMI 30.4 ± 4.1 kg/m2) randomized to either a basic (Basic WLM) or enhanced program with additional support (Enhanced WLM). Analysis was intention-to-treat with imputation using last observation carried forward. There was no significant weight rebound from the start of weight loss maintenance to 12 months for either group (mean: basic 1.3%, enhanced 1.5%) and limited change in secondary outcomes for either program. There were no significant between-group differences in the primary outcome of change in BMI (basic −0.5 (1.9) kg/m2, enhanced −0.5 (1.6) kg/m2, p = 0.93). In conclusion, a web-based WLM program was effective in preventing weight regain over one year following weight loss. However, the addition of personalized e-feedback provided limited additional benefits compared to a standard program. Given the potential reach of web-based approaches, further research examining which web-based program components optimize weight outcomes long-term is required. View Full-Text
Keywords: intervention; weight loss; web-based; randomized controlled trial; calorie restriction; eHealth intervention; weight loss; web-based; randomized controlled trial; calorie restriction; eHealth
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MDPI and ACS Style

Collins, C.E.; Morgan, P.J.; Hutchesson, M.J.; Oldmeadow, C.; Barker, D.; Callister, R. Efficacy of Web-Based Weight Loss Maintenance Programs: A Randomized Controlled Trial Comparing Standard Features Versus the Addition of Enhanced Personalized Feedback over 12 Months. Behav. Sci. 2017, 7, 76.

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