Internet Obesity Treatment Enhanced With Motivational Interviewing
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 495
- 试验地点
- 4
- 主要终点
- Change in body weight
研究概览
简要总结
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.
详细描述
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •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
排除标准
- 未提供
研究组 & 干预措施
Internet Obesity Treatment
Participants will attend weekly class sessions on line and track food and exercise in an on-line journal.
干预措施: Internet Obesity Treatment (Behavioral)
Internet Obesity Treatment with MI
Participants will attend weekly classes on line, record food and exercise in an on-line journal, and will have no more than 6 individual motivational interviewing sessions.
干预措施: Internet Obesity Treatment with MI (Behavioral)
Contingent MI
Intervention is the same as for the MI arm, however participants will only receive MI if meeting certain treatment participation conditions.
干预措施: Contingent MI (Behavioral)
结局指标
主要结局
Change in body weight
时间窗: 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
时间窗: 18 months
次要结局
- Adherence to Treatment Components(18 months)
- Motivation Measures(18 months)
研究者
Jean R. Harvey, PhD, RD
Principal Investigator
University of Vermont