Becoming United in Lifestyle Decisions

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).

Conditions

• Overweight and Obesity

Interventions

BEHAVIORAL

Core Behavioral Weight Loss (BWL) intervention

Behavioral weight loss core (lessons, self weighing, self-monitoring, individual action planning, feedback and progress check ins)

BEHAVIORAL

Dyadic Action Planning

Participants will develop dyadic action plans together.

BEHAVIORAL

Joint Feedback

Participants will see data on their partner's progress, in addition to their own weight and behavioral data.

BEHAVIORAL

Autonomy Support Training

Participants will receive training in how to create an autonomy supportive environment within their marriage/partnership.

BEHAVIORAL

Home Environment Modifications

Participants will be trained in how to structure their home environment to support health behavior.

Sponsors & Collaborators

• University of North Carolina, Chapel Hill

  collaborator OTHER

• National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

  collaborator NIH

• University of Connecticut

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Model

FACTORIAL

Eligibility

Min Age

18 Years

Max Age

75 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2024-03-13

Primary Completion

2026-11-30

Completion

2026-11-30

Countries

• United States

Study Locations