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Does Motivational Interviewing Improve Behavioral Weight Loss Outcomes for Obesity?

NCT02649634 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 135

Last updated 2017-03-20

Study results available
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Summary

The purpose of this study is to determine whether adding motivational interviewing (MI) to a behavioural weight loss program (BWLP) results in improved weight loss for adults who are overweight or obese.

Conditions

Interventions

BEHAVIORAL

Motivational Interviewing

The semi-structured MI protocol was a 45-60 minute intervention based on general MI principles and guidelines, MI strategies specific to health care practice, and MI principles for obesity treatment. The MI protocol included the following components: (1) eliciting concerns about weight; (2) exploring ambivalence; (3) assessing importance and confidence for change; (4) writing a decisional balance; (5) bolstering self-efficacy; (6) looking towards the future; and (8) eliciting ideas for possible changes participant could make to work towards weight loss. Although there was slight variation, the protocol for both MI sessions consisted of similar components.

BEHAVIORAL

Attention Control

The attention control interview was a semi-structured interview ascertaining information relevant to health history, weight history, diet history, dietary and physical activity habits. The majority of questions for the control interviews were drawn from the Behavioural Weight Loss Program intake application. It was designed to be structurally equivalent to the MI session in terms of length of session, timing of sessions, and treatment modality. The goal of the attention-control interview was to provide a pseudo-intervention that controlled for factors common to attending treatment (e.g., attending treatment sessions, having personal contact with a therapist, discussing weight-related issues).

Sponsors & Collaborators

  • University of Calgary

    lead OTHER

Principal Investigators

  • Kristin M von Ranson, PhD · University of Calgary

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2007-09-30
Primary Completion
2010-01-31
Completion
2010-01-31

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02649634 on ClinicalTrials.gov