Effects of a Health-At-Every-Size Approach on Weight Management in Premenopausal Overweight Women

NCT ID: NCT01240499

Last Updated: 2011-10-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

144 participants

Study Classification

INTERVENTIONAL

Study Start Date

2003-09-30

Study Completion Date

2008-09-30

Brief Summary

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The purpose of this study is to measure the effects of a Health-At-Every-Size (HAES) approach on global health status of premenopausal overweight women preoccupied about their weight and who have been unsuccessful in previous weight loss attempts.

Detailed Description

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Weight management is a critical issue in developed countries where the prevalence of obesity is increasing. Poor long-term success observed with current weight-control strategies stresses the relevance to explore new weight management approaches. One of these approaches, referred to as Health-At-Every-Size (HAES), is a new weight paradigm that focuses on a healthy lifestyle by promoting overall health benefits of behavioral changes related to dietary habits and physical activity and emphasizes self-acceptance and well-being, independently of body weight status. Studies on the effects of a HAES approach have shown significant improvements in metabolic and psychological variables.

To our knowledge, no study has yet reported the short and long-term impacts of a HAES approach on a cluster of variables (psychological, morphological, metabolic, and nutritional) in women. The aim of this study is to measure the effects of a HAES approach on global health status of premenopausal overweight women preoccupied about their weight and who have been unsuccessful in previous weight loss attempts. In this parallel controlled trial, women will be randomized to one of the 3 treatment conditions: HAES group, Social support group (SS), or Control group. Measurements will be taken in the short term as well as in the long term (up to 1 year post-intervention).

Conditions

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Overweight

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Health-At-Every-Size (HAES)

Group Type EXPERIMENTAL

Health-At-Every-Size (HAES)

Intervention Type OTHER

1. HAES group: 14 weekly sessions.

Focus on general well-being and positive ways of having a healthy and satisfying lifestyle. Supported by lectures, guided self-reflection, group discussions, as well as practical exercises, this intervention aims at enhancing awareness and knowledge about biological, psychological, and sociocultural aspects of body weight.
2. SS group: 14 weekly sessions.

The objective is to reproduce a structural social support provided by the group itself. Each participant offers their support to each other. Each theme discussed in the HAES group is repeated in the SS group but the health professionals in charge of the group (dietitian \& psychologist) are not counselors (as in HAES group) but only facilitators.

Outcome measures: For all women under study.

Social Support (SS)

Group Type ACTIVE_COMPARATOR

Health-At-Every-Size (HAES)

Intervention Type OTHER

1. HAES group: 14 weekly sessions.

Focus on general well-being and positive ways of having a healthy and satisfying lifestyle. Supported by lectures, guided self-reflection, group discussions, as well as practical exercises, this intervention aims at enhancing awareness and knowledge about biological, psychological, and sociocultural aspects of body weight.
2. SS group: 14 weekly sessions.

The objective is to reproduce a structural social support provided by the group itself. Each participant offers their support to each other. Each theme discussed in the HAES group is repeated in the SS group but the health professionals in charge of the group (dietitian \& psychologist) are not counselors (as in HAES group) but only facilitators.

Outcome measures: For all women under study.

Control

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Health-At-Every-Size (HAES)

1. HAES group: 14 weekly sessions.

Focus on general well-being and positive ways of having a healthy and satisfying lifestyle. Supported by lectures, guided self-reflection, group discussions, as well as practical exercises, this intervention aims at enhancing awareness and knowledge about biological, psychological, and sociocultural aspects of body weight.
2. SS group: 14 weekly sessions.

The objective is to reproduce a structural social support provided by the group itself. Each participant offers their support to each other. Each theme discussed in the HAES group is repeated in the SS group but the health professionals in charge of the group (dietitian \& psychologist) are not counselors (as in HAES group) but only facilitators.

Outcome measures: For all women under study.

Intervention Type OTHER

Other Intervention Names

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Non applicable

Eligibility Criteria

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Inclusion Criteria

* Healthy premenopausal women from Quebec City metropolitan area
* Age: between 30 to 50 years old
* Stable body weight (+/- 2 kg) for at least 2 months before the beginning of the study
* Overweight or obesity: Body mass index \[BMI\] between 25 and 35 kg/m2
* Preoccupation about weight and eating: showing overconcern with shape and weight, exhibiting restriction over food choices for at least 2 years, and having been unsuccessful in previous attempts to lose weight (for at least the past 2 years)
* Current weight corresponding to maximum weight reached during adult lifetime

Exclusion Criteria

* Women currently dieting to lose weight
* Taking oral contraceptives or postmenopausal status
* Pregnant or lactating women
* Under treatment for coronary heart disease, diabetes, dyslipidemia, hypertension, depression or endocrine disorders (with the exception of stable thyroid disease)
* Women presenting metabolic or important psychological disorders (drug or alcohol abuse, bulimia, …)
* Women who had already take part to the Health-At-Every-Size (HAES) approach
Minimum Eligible Age

30 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Canadian Institutes of Health Research (CIHR)

OTHER_GOV

Sponsor Role collaborator

Laval University

OTHER

Sponsor Role lead

Responsible Party

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Simone Lemieux

Professeur

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Simone Lemieux, Ph.D., Dt.P.

Role: PRINCIPAL_INVESTIGATOR

Department of food sciences and nutrition/Institute of Nutraceuticals and Functional Foods (INAF), Laval University

Locations

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INAF, Laval University

Québec, Quebec, Canada

Site Status

Countries

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Canada

References

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Gagnon-Girouard MP, Begin C, Provencher V, Tremblay A, Boivin S, Lemieux S. Subtyping weight-preoccupied overweight/obese women along restraint and negative affect. Appetite. 2010 Dec;55(3):742-5. doi: 10.1016/j.appet.2010.09.011. Epub 2010 Sep 17.

Reference Type RESULT
PMID: 20851157 (View on PubMed)

Gagnon-Girouard MP, Begin C, Provencher V, Tremblay A, Mongeau L, Boivin S, Lemieux S. Psychological Impact of a "Health-at-Every-Size" Intervention on Weight-Preoccupied Overweight/Obese Women. J Obes. 2010;2010:928097. doi: 10.1155/2010/928097. Epub 2010 Jun 29.

Reference Type RESULT
PMID: 20798861 (View on PubMed)

Provencher V, Begin C, Tremblay A, Mongeau L, Corneau L, Dodin S, Boivin S, Lemieux S. Health-At-Every-Size and eating behaviors: 1-year follow-up results of a size acceptance intervention. J Am Diet Assoc. 2009 Nov;109(11):1854-61. doi: 10.1016/j.jada.2009.08.017.

Reference Type RESULT
PMID: 19857626 (View on PubMed)

Gagnon-Girouard MP, Begin C, Provencher V, Tremblay A, Boivin S, Lemieux S. Can we apply the dual-pathway model of overeating to a population of weight-preoccupied overweight women? Int J Eat Disord. 2009 Apr;42(3):244-52. doi: 10.1002/eat.20614.

Reference Type RESULT
PMID: 19034910 (View on PubMed)

Provencher V, Begin C, Gagnon-Girouard MP, Tremblay A, Boivin S, Lemieux S. Personality traits in overweight and obese women: associations with BMI and eating behaviors. Eat Behav. 2008 Aug;9(3):294-302. doi: 10.1016/j.eatbeh.2007.10.004. Epub 2007 Nov 6.

Reference Type RESULT
PMID: 18549988 (View on PubMed)

Provencher V, Begin C, Gagnon-Girouard MP, Gagnon HC, Tremblay A, Boivin S, Lemieux S. Defined weight expectations in overweight women: anthropometrical, psychological and eating behavioral correlates. Int J Obes (Lond). 2007 Nov;31(11):1731-8. doi: 10.1038/sj.ijo.0803656. Epub 2007 Jun 5.

Reference Type RESULT
PMID: 17549091 (View on PubMed)

Provencher V, Begin C, Tremblay A, Mongeau L, Boivin S, Lemieux S. Short-term effects of a "health-at-every-size" approach on eating behaviors and appetite ratings. Obesity (Silver Spring). 2007 Apr;15(4):957-66. doi: 10.1038/oby.2007.638.

Reference Type RESULT
PMID: 17426331 (View on PubMed)

Leblanc V, Provencher V, Begin C, Corneau L, Tremblay A, Lemieux S. Impact of a Health-At-Every-Size intervention on changes in dietary intakes and eating patterns in premenopausal overweight women: results of a randomized trial. Clin Nutr. 2012 Aug;31(4):481-8. doi: 10.1016/j.clnu.2011.12.013. Epub 2012 Jan 31.

Reference Type DERIVED
PMID: 22296874 (View on PubMed)

Other Identifiers

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CHOIX-170

Identifier Type: -

Identifier Source: org_study_id