Internet Obesity Treatment Enhanced With Motivational Interviewing
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Obesity
- Sponsor
- University of Vermont
- Enrollment
- 495
- Locations
- 2
- Primary Endpoint
- Change in body weight
- Status
- Completed
- Last Updated
- 7 years ago
Overview
Brief Summary
Internet-based weight control programs have been shown effective in producing weight loss, but in-person delivery of behavioral weight control produces significantly greater weight loss than on-line delivery of the same program. Motivational Interviewing has been shown to increase weight loss when delivered as an adjunct to in-person weight loss programs but has not been examined in conjunction with web-based obesity treatment. Therefore, the overall goal of this project is to determine if the addition of on-line Motivational Interviewing to a web-based group behavioral obesity treatment program will augment weight loss outcomes.
Detailed Description
This randomized controlled trial is designed to determine whether weight losses in a group behavioral weight loss intervention conducted over the Internet are increased with the inclusion of individual, online MI sessions. All participants will receive the same online 6-month group-based behavioral weight loss program followed by 12 months of weight maintenance. Overweight and obese adults at two study sties (N=426) will be randomized to (1) Internet intervention; or 2) Internet intervention with individual MI sessions occurring at three month intervals on a fixed schedule (Internet+MI-Fixed). Assessments will be conducted every six months and will include measures of body weight and height, diet and exercise behaviors, Quality of Life, adherence measures (eg., attendance, compliance with self-monitoring), social influence components, motivation, treatment satisfaction, demographic data and descriptive information regarding use of website components. A third arm was added for the final 3 intervention cohorts. All participants received the program as described above with the addition of motivational interviewing contingent on participants' attendance in classes.
Investigators
Jean R. Harvey, PhD, RD
Principal Investigator
University of Vermont
Eligibility Criteria
Inclusion Criteria
- •must be over 18
- •must have a BMI between 18 and 50
- •must live within 60 minutes driving distance of University of Arkansas, Little Rock, AR, or University of Vermont, Burlington, Vermont
- •must be able to walk for exercise
Exclusion Criteria
- Not provided
Outcomes
Primary Outcomes
Change in body weight
Time Frame: 0
Weights will be taken in street clothes without shoes using a hospital quality digital floor model scale. Height will be taken at baseline using a wall-mounted stadiometer and BMI will be calculated as weight (kg)/height(m2)
Change in Body Weight
Time Frame: 18 months
Secondary Outcomes
- Adherence to Treatment Components(18 months)
- Motivation Measures(18 months)