J. Med. Internet Res. - Self-directed interventions to promote weight loss: a systematic review of reviews.

Tópicos

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Resumo

CKGROUND: A wide range of self-directed weight-loss interventions are available, providing users with a variety of tools delivered through various formats to regulate weight-related behavior patterns. However, it is unclear how effective self-directed interventions are and how they promote weight loss and weight maintenance.OBJECTIVE: A systematic review of reviews was conducted to examine the effectiveness of such interventions and to identify intervention content associated with effectiveness.METHODS: MEDLINE, Embase, PsycINFO, CINAHL, and the Cochrane Library for systematic reviews were searched from 2000-2012 for reviews of the effectiveness of self-directed interventions on weight loss and weight maintenance in adults. Two reviewers used predefined inclusion criteria to select relevant reviews and assess their quality using the Overview Quality Assessment Questionnaire (OQAQ). We extracted data on effectiveness and on relationships between intervention characteristics and effectiveness.RESULTS: Twenty reviews were included and quality assessed. Findings relevant to self-directed interventions, including interactive websites, smartphone applications, and text messaging (short message service, SMS) were summarized. Findings were mixed but promising. For example, one review of Internet-based interventions found that, when used in conjunction with standard weight loss programs, these interventions resulted in a significant average increase in weight loss of 1.5 kg over evaluation periods. Unfortunately, only 7 of 20 reviews were of high methodological quality according to OQAQ scores, and only 4 employed meta-analyses. Few reviews linked intervention content to effectiveness.CONCLUSIONS: Current evidence suggests that self-directed interventions can independently promote weight loss and can augment interventions involving personal contact. Particular change techniques and delivery modes including individualized feedback, email counseling, and online social support appear to enhance effectiveness. Further reviews of the content of self-directed weight-loss intervention studies are needed to clarify which change techniques delivered through which delivery formats optimize intervention effectiveness.

Resumo Limpo

ckground wide rang selfdirect weightloss intervent avail provid user varieti tool deliv various format regul weightrel behavior pattern howev unclear effect selfdirect intervent promot weight loss weight maintenanceobject systemat review review conduct examin effect intervent identifi intervent content associ effectivenessmethod medlin embas psycinfo cinahl cochran librari systemat review search review effect selfdirect intervent weight loss weight mainten adult two review use predefin inclus criteria select relev review assess qualiti use overview qualiti assess questionnair oqaq extract data effect relationship intervent characterist effectivenessresult twenti review includ qualiti assess find relev selfdirect intervent includ interact websit smartphon applic text messag short messag servic sms summar find mix promis exampl one review internetbas intervent found use conjunct standard weight loss program intervent result signific averag increas weight loss kg evalu period unfortun review high methodolog qualiti accord oqaq score employ metaanalys review link intervent content effectivenessconclus current evid suggest selfdirect intervent can independ promot weight loss can augment intervent involv person contact particular chang techniqu deliveri mode includ individu feedback email counsel onlin social support appear enhanc effect review content selfdirect weightloss intervent studi need clarifi chang techniqu deliv deliveri format optim intervent effect

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