State-wide Health Approach to Increase Reach and Effectiveness: Study 3

Study Overview
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Brief Summary
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The investigators have shown that adding an internet behavioral weight loss program to a statewide campaign improves weight loss outcomes. However, our follow-up data suggest that once the intervention is stopped, participants begin to experience weight regain. Thus, the purpose of this project is extend this line of work and pilot test health coaches and monetary incentives for weight loss maintenance. The investigators hypothesize that coaching and incentives will improve longer-term weight outcomes.

Official Title
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Using a State-wide Initiative to Disseminate Effective Behavioral Weight Loss Strategies

Conditions
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Obesity

Intervention / Treatment
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* Behavioral: Shape Up Rhode Island
* Behavioral: Shape Up Rhode Island + Professional Coach + Incentives
* Behavioral: Shape Up Rhode Island + Peer Coach + Incentives


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Body Mass Index >=25kg/m2 English speaking Exclusion Criteria: Health problems that make weight loss or unsupervised exercise unsafe Current pregnancy or plan to become pregnant in the next 12 months Planned relocation Previous participation in Shape Up Rhode Island research studies

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Shape Up Rhode Island<br>Individuals who join Shape Up Rhode Island 2013, enter our research study, and lose 5% of their initial body weight during the first two months of Shape Up will be randomized to one of the three maintenance interventions. If randomized to this treatment arm, participants will receive periodic newsletters throughout the 12 month trial. | Behavioral: Shape Up Rhode Island<br> <br> |
| Experimental: Shape Up Rhode Island + Professional Coach + Incentives<br>Individuals who join Shape Up Rhode Island 2013, enter our research study, and lose 5% of their initial body weight during the first two months of Shape Up will be randomized to one of the three maintenance interventions. If randomized to this treatment arm, participants will receive a professional weight loss coach and will be incentivized for submitting information to their coach and meeting weight goals. | Behavioral: Shape Up Rhode Island + Professional Coach + Incentives<br> <br> |
| Experimental: Shape Up Rhode Island + Peer Coach + Incentives<br>Individuals who join Shape Up Rhode Island 2013, enter our research study, and lose 5% of their initial body weight during the first two months of Shape Up will be randomized to one of the three maintenance interventions. If randomized to this treatment arm, participants will receive a peer coach and will be incentivized for reporting to their coach and meeting weight goals. | Behavioral: Shape Up Rhode Island + Peer Coach + Incentives<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| weight change from month 2 (i.e. immediately following the weight loss phase) to the 12 month follow-up assessment measured on a digital scale to the nearest 0.1 kilogram |  | 2 to 12 months |