Dataset Information

Impact of addressing reasons for weight loss on behavioral weight-control outcome.

ABSTRACT:

Background

One way to improve weight control may be to place greater emphasis on the main reasons why individuals want to lose weight.

Purpose

To evaluate the effects of emphasizing physical appearance, health, or both on behavioral weight-control outcome.

Design

RCT. Data were collected from 2003 to 2005 and analyzed in 2009.

Setting/participants

203 women aged 18-55 years (M=41.8, SD=9.2) and BMI>27 and <40 (M=34.2, SD=3.7) who rated both appearance and health as important reasons for weight loss, enrolled at a university medical center.

Intervention

A 6-month weekly behavioral intervention alone (Standard) was compared to an enhanced focus on physical appearance (Appearance), health benefits of weight loss (Health), or both appearance and health (Combined). The 6-month period of acute intervention was followed by six monthly booster sessions.

Main outcome measures

The primary outcome was change in body weight (kg). Additional outcomes included the Multidimensional Body-Self Relations Questionnaire, Medical Outcomes Study Short Form-36, and questions about satisfaction with weight, appearance, and health. Assessments were conducted at 0, 6, 12, and 18 months.

Results

Appearance demonstrated significantly greater weight loss compared to Standard at 6 months (p=0.0107). Combined demonstrated greater weight loss compared to Standard at 6 and 12 months (p's=0.0034 and 0.0270, respectively). Although addressing motivators differentially affected satisfaction at 6 months, satisfaction was unrelated to weight outcome over the following year.

Conclusions

Behavioral interventions incorporating components with a focus on physical appearance were associated with improved short-term weight loss. The mechanism for this effect is unclear and warrants further study.

SUBMITTER: Kalarchian MA

PROVIDER: S-EPMC3028438 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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Publications

Impact of addressing reasons for weight loss on behavioral weight-control outcome.

Kalarchian Melissa A MA Levine Michele D MD Klem Mary L ML Burke Lora E LE Soulakova Julia N JN Marcus Marsha D MD

American journal of preventive medicine 20110101 1

<h4>Background</h4>One way to improve weight control may be to place greater emphasis on the main reasons why individuals want to lose weight.<h4>Purpose</h4>To evaluate the effects of emphasizing physical appearance, health, or both on behavioral weight-control outcome.<h4>Design</h4>RCT. Data were collected from 2003 to 2005 and analyzed in 2009.<h4>Setting/participants</h4>203 women aged 18-55 years (M=41.8, SD=9.2) and BMI>27 and <40 (M=34.2, SD=3.7) who rated both appearance and health as i ...[more]

PMID: 21146763

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Project description:BackgroundBehavioral weight loss interventions can lead to an average weight loss of 5%-10% of initial body weight, however there is wide individual variability in treatment response. Although built, social, and community food environments can have potential direct and indirect influences on body weight (through their influence on physical activity and energy intake), these environmental factors are rarely considered as predictors of variation in weight loss.ObjectiveEvaluate the association between built, social, and community food environments and changes in weight, moderate-to-vigorous physical activity (MVPA), and dietary intake among adults who completed an 18-month behavioral weight loss intervention.MethodsParticipants included 93 adults (mean ± SD; 41.5 ± 8.3 years, 34.4 ± 4.2 kg/m2, 82% female, 75% white). Environmental variables included urbanicity, walkability, crime, Neighborhood Deprivation Index (includes 13 social economic status factors), and density of convenience stores, grocery stores, and limited-service restaurants at the tract level. Linear regressions examined associations between environment and changes in body weight, waist circumference (WC), MVPA (SenseWear device), and dietary intake (3-day diet records) from baseline to 18 months.ResultsGrocery store density was inversely associated with change in weight (β = -0.95; p = 0.02; R 2 = 0.062) and WC (β = -1.23; p < 0.01; R 2 = 0.109). Participants living in tracts with lower walkability demonstrated lower baseline MVPA and greater increases in MVPA versus participants with higher walkability (interaction p = 0.03). Participants living in tracts with the most deprivation demonstrated greater increases in average daily steps (β = 2048.27; p = 0.02; R 2 = 0.039) versus participants with the least deprivation. Limited-service restaurant density was associated with change in % protein intake (β = 0.39; p = 0.046; R 2 = 0.051).ConclusionEnvironmental factors accounted for some of the variability (<11%) in response to a behavioral weight loss intervention. Grocery store density was positively associated with weight loss at 18 months. Additional studies and/or pooled analyses, encompassing greater environmental variation, are required to further evaluate whether environment contributes to weight loss variability.

Dataset Information

Impact of addressing reasons for weight loss on behavioral weight-control outcome.

Background

Purpose

Design

Setting/participants

Intervention

Main outcome measures

Results

Conclusions

Publications

Impact of addressing reasons for weight loss on behavioral weight-control outcome.

Similar Datasets

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