Innovative approaches to weight loss in a high-risk population: The small changes and lasting effects (SCALE) trial.

Auteur(s) :
Wansink B., Wethington E., Devine CM., Phillips EG., Wells MT., Winston G., Ramos R., Peterson JC., Charlson M.
Date :
Mai, 2017
Source(s) :
Obesity (Silver Spring, Md.). #25:5 p833-841
Adresse :
Division of General Internal Medicine, Weill Cornell Medicine, New York, New York, USA. [email protected]

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OBJECTIVE
To evaluate the efficacy of a small change behavioral weight loss intervention with or without a positive affect/self-affirmation (PA/SA) component on weight loss at 12 months.

METHODS
Black and Hispanic adults (N = 405) with body mass index 25-50 kg/m(2) selected one of ten small change eating strategies and a physical activity goal, randomly with/without PA/SA. Participants were followed by community health workers at set intervals (weekly in months 1-3; biweekly in months 4-9; once monthly in months 10-12).

RESULTS
There was no difference in weight loss at 12 months between participants in the small change approach alone (1.1%) versus the small change PA/SA intervention (1.2%). During treatment, 9% of participants lost at least 7% of their initial body weight. Participants who reported more interval life events had a lower likelihood of losing weight (P < 0.0001). However, those randomized to the small change PA/SA intervention gained less weight (+0.3% vs. 2.3% gain; P < 0.0001).

CONCLUSIONS
The small change PA/SA intervention did not lead to a significant difference in weight loss in comparison to the small change approach alone. It did, however, decrease the negative impact of psychosocial stressors on weight gain among participants with more interval life events.

Source : Pubmed
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