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How prescriptive support affects weight loss in weight-loss intervention participants and their untreated spouses.

ABSTRACT: OBJECTIVE:Controlling or prescriptive support styles (e.g., pressure) often hinder weight loss, but can sometimes be beneficial. This secondary analysis of data from a randomized controlled trial examined persuasion, pressure, and indirect social control among cohabiting couples and the effect of these supports on weight loss. METHODS:Couples (NCouples = 130) were randomized to either Weight Watchers (WW) or a self-guided control condition (SG). Only one member of each couple received the intervention; the other member of the couple was untreated. Couples were weighed and completed study measures at baseline, 3, and 6 months. RESULTS:Dyadic multilevel models examined BMI change and differences across role (treated participant/untreated spouse) and condition (WW/SG). Prescriptive support predicted BMI change for treated participants in the WW condition only. For treated WW participants, there was no significant decrease in BMI when pressure was high (+1SD), B = -.25, p = .22, but a significant decrease when pressure was low (0), B = -.96, p < .001. Additionally, high levels of indirect social control (+1SD) predicted greater decreases in BMI compared to low (-1SD) indirect social control, B = -.91, p < .001, and, B = -.41, p < .01. CONCLUSIONS:Considering both the type and context of support for weight management is worthwhile. Intervention participants had access to treatment resources that may have engendered more effective responses to spouses' concerns or a sense of obligation to their spouse (indirect social control), whereas pressures to lose weight-while engaged in treatment-may have undermined behavior-change efforts. (PsycINFO Database Record

SUBMITTER: Cornelius T

PROVIDER: S-EPMC7384381 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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How prescriptive support affects weight loss in weight-loss intervention participants and their untreated spouses.

Cornelius Talea T Gettens Katelyn K Lenz Erin E Wojtanowski Alexis C AC Foster Gary D GD Gorin Amy A AA

Health psychology : official journal of the Division of Health Psychology, American Psychological Association 20180621 8

<h4>Objective</h4>Controlling or prescriptive support styles (e.g., pressure) often hinder weight loss, but can sometimes be beneficial. This secondary analysis of data from a randomized controlled trial examined persuasion, pressure, and indirect social control among cohabiting couples and the effect of these supports on weight loss.<h4>Methods</h4>Couples (<i>N<sub>Couples</sub></i> = 130) were randomized to either Weight Watchers (WW) or a self-guided control condition (SG). Only one member o ...[more]

PMID: 29927273

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Project description:BACKGROUND:Community-based weight loss programs may have potential to address overweight and obesity at the population level. However, participation patterns and individual outcomes from these programs are understudied. This study examined repeat participation patterns and participant weight change between contests over seven years of an Aboriginal Australian team-based program in order to identify (1) predictors of repeat participation and (2) associations with weight change between contests. METHODS:Data for the 12 contests from 2012 to 2018 were merged, with probabilistic record matching. A total of 7510 enrolments were registered for the 12 contests, representing 4438 unique people. Contest lengths varied from 10 to 16?weeks in duration. Non-repeat participants were those who only competed once in the program by the end of 2018, and repeaters were those who competed in at least two contests. Associations between repeat participation and participant baseline (i.e., first participation occasion) characteristics, change in diet and physical activity and percent change in weight during the first participation occasion were examined using crossed random effects (for person and team) regression adjusted for exposure to the program. Weight percentage change between contests was calculated for consecutive participation occasions occurring at least three months apart, converted to percent change per month. Weight change was regressed on number of repeat participation occasions adjusted for age, gender, baseline weight at first participation occasion, and weight percent change in the immediately preceding contest. RESULTS:One-third of the 4433 participants participated more than once, with women more likely than men to repeat. A 1% reduction in weight during a competition was associated with an increase in weight of 0.05% per month between competition end and subsequent participation. Regain was smaller the heavier participants were at their first participation. CONCLUSIONS:While individuals benefit from weight loss through program participation, strengthening strategies for weight loss maintenance within or following the program could improve long-term weight outcomes and reduce weight cycling.

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How prescriptive support affects weight loss in weight-loss intervention participants and their untreated spouses.

Publications

How prescriptive support affects weight loss in weight-loss intervention participants and their untreated spouses.

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