The Effects of Weight Science and Nutrition Education on Weight Control Beliefs and Disordered Eating.

NCT ID: NCT05684263

Last Updated: 2023-01-13

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-01-09

Study Completion Date

2023-09-30

Brief Summary

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People have different beliefs about controlling their weight. Individuals who believe they should control their weight are more likely to have poor body image, low self-esteem and disordered eating. Individuals who believe they should aim for a healthy lifestyle and accept their natural weight have better body image, better self-esteem and less disordered eating. This study investigates the impact of three types of education on participants' beliefs about controlling weight: 1) education about the body's natural regulation of weight; or 2) education about healthy nutrition; or 3) education about both the body's regulation of weight and healthy nutrition. The study will also investigate whether changing participants' beliefs about controlling weight impacts participants' body satisfaction, feelings about themselves and intention to diet. It is predicted that teaching both about the body's regulation of weight and healthy eating will decrease participants' belief in personal control over weight, and increase participants' belief in striving for a healthy lifestyle and accepting their natural weight. In turn, these changes in weight control beliefs are expect to predict improved body satisfaction, feelings about themselves and a lower intention to diet.

Detailed Description

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Participants will be randomly assigned to one of three conditions: 1) weight science + control (sleep education); 2) control (sleep education) + healthy nutrition education; or 3) weight science + healthy nutrition education. Participants will be randomly assigned to one of the three conditions by an algorithm in REDCap. The same procedure will be used for each condition, with the exception of what education is provided.

After the online consent form is completed, participants will be automatically redirected to the study questionnaires in REDCap. Participants will complete a package of questionnaires pre- and post- intervention measuring demographic information, physical activity, knowledge of weight science, weight control beliefs, self-esteem, restrained eating, body appreciation, self-compassion for weight and shape and fear of self-compassion for weight and shape. Participants will complete the package of questionnaires prior to watching two educational videos embedded into the REDCap project, and then complete the same package of questionnaires again.

After watching the educational videos and completing the study questionnaires, participants will receive a copy of the debriefing form, which provides further information about the study purpose, independent and dependent variables, local mental health resources, and contact information for the LPI. The debriefing form will be emailed to participants via McMaster Outlook using the email encryption function. If participants do not complete the study questionnaires, the debriefing form will be sent to participants after their study time slot has closed.

The data will be collected and stored through the secure online data collection platform REDCap, which is managed by St. Joseph's Healthcare Hamilton. REDCap is a secure, encrypted data collection platform that requires two-factor authentication for access to study data. REDCap is located within the secure internal SJHH network, and is protected by firewall software (Checkpoint software).

Conditions

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Body Image Eating, Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

There are three conditions in the study, which correspond to what education the participant will receive. The participant will be randomly assigned to one of the three conditions.
Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Weight Science + Healthy Eating Education

In this condition participants will watch two educational videos on the topics of weight science, and healthy eating. The videos were created by a registered psychologist and are each between 20 and 30 minutes in length.

Group Type EXPERIMENTAL

Weight Science Educational Video

Intervention Type OTHER

Educational videos on the topic of weight science created by a registered clinical psychologist.

Healthy Eating Educational Video

Intervention Type OTHER

Educational videos on the topic of healthy eating created by a registered clinical psychologist.

Weight Science + Healthy Sleep Education

In this condition participants will watch two educational videos on the topics of weight science, and healthy sleep. The videos were created by a registered psychologist and are each between 20 and 30 minutes in length.

We are interested in the effect of weight science education alone, the healthy sleep video was added as an active control so that each condition was watching the same amount of videos.

Group Type OTHER

Weight Science Educational Video

Intervention Type OTHER

Educational videos on the topic of weight science created by a registered clinical psychologist.

Healthy Sleep Educational Video

Intervention Type OTHER

Educational videos on the topic of healthy sleep created by a registered clinical psychologist.

Healthy Eating + Healthy Sleep Education

In this condition participants will watch two educational videos on the topics of healthy eating, and healthy sleep. The videos were created by a registered psychologist and are each between 20 and 30 minutes in length.

We are interested in the effect of healthy eating education alone, the healthy sleep video was added as an active control so that each condition was watching the same amount of videos.

Group Type OTHER

Healthy Eating Educational Video

Intervention Type OTHER

Educational videos on the topic of healthy eating created by a registered clinical psychologist.

Healthy Sleep Educational Video

Intervention Type OTHER

Educational videos on the topic of healthy sleep created by a registered clinical psychologist.

Interventions

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Weight Science Educational Video

Educational videos on the topic of weight science created by a registered clinical psychologist.

Intervention Type OTHER

Healthy Eating Educational Video

Educational videos on the topic of healthy eating created by a registered clinical psychologist.

Intervention Type OTHER

Healthy Sleep Educational Video

Educational videos on the topic of healthy sleep created by a registered clinical psychologist.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* 17 years of age or older
* Female
* Normal hearing with or without listening device

Exclusion Criteria

* Currently diagnosed with an eating disorder
* Has received treatment for an eating disorder at any point in time
Minimum Eligible Age

17 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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St. Joseph's Healthcare Hamilton

OTHER

Sponsor Role lead

Responsible Party

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Michele Laliberte

Psychologist, Clinical Lead, Eating Disorder Clinic

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Michele Laliberte, PhD

Role: PRINCIPAL_INVESTIGATOR

St. Joseph's Healthcare Hamilton

Central Contacts

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Michele Laliberte, PhD

Role: CONTACT

(905) 522-1155 ext. 33433

References

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Tylka TL, Wood-Barcalow NL. The Body Appreciation Scale-2: item refinement and psychometric evaluation. Body Image. 2015 Jan;12:53-67. doi: 10.1016/j.bodyim.2014.09.006. Epub 2014 Oct 21.

Reference Type BACKGROUND
PMID: 25462882 (View on PubMed)

Fairburn CG, Beglin SJ. Assessment of eating disorders: interview or self-report questionnaire? Int J Eat Disord. 1994 Dec;16(4):363-70.

Reference Type BACKGROUND
PMID: 7866415 (View on PubMed)

Craig C, Marshall A, Sjostrom M, Bauman A, Lee P, Macfarlane D, Lam T, & Stewart S. International physical activity questionnaire-short form. Journal of American College Health. 2017; 65(7): 492-501.

Reference Type BACKGROUND

Laliberte MM, Newton M, McCabe R, & Mills JS. Controlling Your Weight Versus Controlling Your Lifestyle: How Beliefs about Weight Control Affect Risk for Disordered Eating, 10534_2006_9060_Fig3_HTML.gif Dissatisfaction and Self-esteem. Cognitive Therapy and Research. 2007; 31(6): 853-869.

Reference Type BACKGROUND

Rosenberg M. Society and the Adolescent Self-Image (Revised edition). Wesleyan University Press. 1989.

Reference Type BACKGROUND

Other Identifiers

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STJOES2022WCB

Identifier Type: -

Identifier Source: org_study_id

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