Psychological benefits of weight loss following behavioural and/or dietary weight loss interventions: a systematic research review

Lasikiewicz, N., Myrissa, K., Hoyland, A., and Lawton, C.L. (2014) Psychological benefits of weight loss following behavioural and/or dietary weight loss interventions: a systematic research review. Appetite, 72. pp. 123-137.

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Abstract

It is generally accepted that weight loss has significant physiological benefits, such as reduced risk of diabetes, lowered blood pressure and blood lipid levels. However, few behavioural and dietary interventions have investigated psychological benefit as the primary outcome. Hence, systematic review methodology was adopted to evaluate the psychological outcomes of weight loss following participation in a behavioural and/or dietary weight loss intervention in overweight/obese populations. 36 Studies were selected for inclusion and were reviewed. Changes in self-esteem, depressive symptoms, body image and health related quality of life (HRQoL) were evaluated and discussed. Where possible, effect sizes to indicate the magnitude of change pre- to post- intervention were calculated using Hedges' g standardised mean difference. The results demonstrated consistent improvements in psychological outcomes concurrent with and sometimes without weight loss. Improvements in body image and HRQoL (especially vitality) were closely related to changes in weight. Calculated effect sizes varied considerably and reflected the heterogeneous nature of the studies included in the review. Although the quality of the studies reviewed was generally acceptable, only 9 out of 36 studies included a suitable control/comparison group and the content, duration of intervention and measures used to assess psychological outcomes varied considerably. Further research is required to improve the quality of studies assessing the benefits of weight loss to fully elucidate the relationship between weight loss and psychological outcomes.

Item ID: 30225
Item Type: Article (Research - C1)
ISSN: 1095-8304
Keywords: weight-loss; health related quality of life; self-esteem; depression; body image; behavioural intervention
Additional Information:

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Funders: The Kellogg Company, UK
Date Deposited: 18 Nov 2013 00:57
FoR Codes: 17 PSYCHOLOGY AND COGNITIVE SCIENCES > 1701 Psychology > 170106 Health, Clinical and Counselling Psychology @ 100%
SEO Codes: 92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920401 Behaviour and Health @ 70%
92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920411 Nutrition @ 30%
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