Overweight and Obesity
Conditions
Keywords
couples, mobile weight loss treatment, weight control
Brief summary
The goal of this project is to investigate how to enhance the effects of an online-only (mHealth) couples weight loss program. This study will use an innovative methodological framework, the Multiphase Optimization Strategy (MOST), to test four different strategies for weight loss and partner support in addition to a core intervention (i.e., dyadic action planning, joint feedback on goal progress, autonomy support training, and home environment modifications).
Interventions
Behavioral weight loss core (lessons, self weighing, self-monitoring, individual action planning, feedback and progress check ins)
BEHAVIORALDyadic Action Planning
Participants will develop dyadic action plans together.
BEHAVIORALJoint Feedback
Participants will see data on their partner's progress, in addition to their own weight and behavioral data.
BEHAVIORALAutonomy Support Training
Participants will receive training in how to create an autonomy supportive environment within their marriage/partnership.
BEHAVIORALHome Environment Modifications
Participants will be trained in how to structure their home environment to support health behavior.
Sponsors
University of Connecticut
University of North Carolina, Chapel Hill
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Study design
Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
* Married/cohabitating couple - both partners must be eligible * BMI between 25-55kg/m2 * English speaking/reading * Have a smartphone and reliable internet access * Have active email address * Willing to videoconference
Exclusion criteria
* Report being unable to walk 2 blocks without stopping * Are currently participating in weight loss treatment, have a history of bariatric surgery, or lost ≥5% in the past 6-months * Are pregnant or plan to become pregnant during the study period * Report chest pain or loss of consciousness on the Physical Activity Readiness Questionnaire * Report a medical condition that could jeopardize their safety in a weight control program with diet and exercise guidelines * Report conditions that, in the judgment of the PI, would render them unlikely to follow the protocol (e.g. dementia)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Body Weight (kg) | Baseline to 6 months | Weight change from baseline to 6 months. Weight will be objectively measured on a digital scale in the participant's home and weight change will be calculated. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Goal Coordination (Wingrove Goal Coordination Scale) | Baseline, 3 months, 6 months | Goal coordination (the extent to which partners integrate and align their weight management goals) will be measured with the Wingrove Goal Coordination Scale at baseline, 3, and 6 months. |
| Transactive Density | Baseline, 3 months, 6 months | Interdependence of partners will be measured with the Inclusion of Others in the Self Scale at baseline, 3, and 6 months. |
| Shared Goal Representation | Baseline, 3 months, 6 months | The Important Others Questionnaire will be used to capture shared goal representation at baseline, 3, and 6 months. |
| Home Food Environment (Household Food Inventory) | Baseline, 3 months, 6 months | The home food environment will be measured with the Household Food Inventory, administered at baseline, 3, and 6 months. |
| Home Exercise Environment (Exercise Environment Questionnaire) | Baseline, 3 months, 6 months | The home exercise environment will be measured with the Exercise Environment Questionnaire, administered at baseline, 3, and 6 months. |
| Dietary Intake | Baseline, 3 months, 6 months | Dietary intake will be assessed at baseline and 3 months as a hypothesized behavioral mediator and at 6 months as a secondary outcome measure. |
| Physical Activity (Paffenbarger Physical Activity Questionnaire) | Baseline, 3 months, 6 months | Physical activity will be assessed using the Paffenbarger Physical Activity Questionnaire at baseline and 3 months as a hypothesized behavioral mediator and at 6 months as a secondary outcome measure. |
Countries
United States
Outcome results
None listed