Setting targets leads to greater long-term weight losses and ‘unrealistic’ targets increase the effect in a large community-based commercial weight management group

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Avery, Amanda, Langley-Evans, Simon C., Harrington, Michaela and Swift, Judy A. (2016) Setting targets leads to greater long-term weight losses and ‘unrealistic’ targets increase the effect in a large community-based commercial weight management group. Journal of Human Nutrition and Dietetics, 29 (6). pp. 687-696. ISSN 1365-277X

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Abstract

Background. Setting personal targets is an important behavioural component in weight management programmes. Normal practice is to encourage ‘realistic’ weight loss but the under-pinning evidence base for this is limited and controversial. This study investigates the effect of number and size of weight loss targets on long-term weight loss in a large community sample of adults.

Methods. Weight change, attendance and target weight data for all new UK members, joining January to March 2012 was extracted from a commercial slimming organisation’s electronic database.

Results. Of the 35 380 members who had weight data available at 12 months after joining, 69.1% (n=24 447)had a starting BMI≥30kg/m2. Their mean weight loss was 12.9±7.8% and for both sexes, weight loss at 12 months was greater for those who set targets (p<0.001). Those that set ≥ 4 targets achieved the greatest loss (p<0.001). OR for weight loss ≥10% at 12 months was 10.3 (CI 9.7- 11.1, p<0.001) where targets had been set compared to none. At the highest quintile of target size, the size of the first target explained 47.2% (p<0.001) of the variance in weight loss achieved at 12 months. The mean BMI reduction in those with a target >25% was 7.6±4.0 kg/m2. A higher percentage of obese members did not set targets (p<0.001) compared to those with a BMI below 30kg/m2.

Conclusions. Much of the variance in achieved weight loss in this population was explained by the number of targets set and the size of the first target. Whilst obese people were less likely to set targets, doing so increased the likelihood of achieving clinically significant weight loss and for some ‘unrealistic’ targets improved results.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/971458
Keywords: Setting Targets/Goals, Community Weight Loss
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Biosciences > Division of Nutritional Sciences
Identification Number: https://doi.org/10.1111/jhn.12390
Depositing User: Avery, Amanda
Date Deposited: 03 May 2016 07:34
Last Modified: 15 Aug 2024 15:31
URI: https://eprints.nottingham.ac.uk/id/eprint/33063

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