Ripple Effect of Lifestyle Intervention During Pregnancy on Partners' Weight

February 8, 2018 updated by: Todd Hagobian, California Polytechnic State University-San Luis Obispo
The primary aim of the proposed study is to determine whether lifestyle interventions to prevent excessive gestational weight gain in overweight/obese pregnant women have positive "ripple" effects on untreated partners in the home. We hypothesize that partners of pregnant women randomized to the lifestyle intervention, relative to those of standard care, will have greater weight losses through 12-months. Secondary aims examine partner improvements in weight control behaviors, the home environment, and psychosocial parameters.

Study Overview

Status

Completed

Conditions

Detailed Description

Lifestyle interventions targeting overweight individuals can produce positive "ripple" effects on untreated overweight partners in the home. Interestingly, ripple effects on partners' weight appear most pronounced when the interventions target women. Women, and mothers in particular, remain the primary "nutritional gatekeepers" of the home. Despite widespread recognition that motherhood is a powerful motivator for behavior changes, no study to date has examined the "ripple" effects of prenatal lifestyle interventions that target mothers' gestational weight gain. The primary aim of the proposed study is to determine whether lifestyle interventions to prevent excessive gestational weight gain in overweight/obese pregnant women have positive "ripple" effects on untreated partners in the home. The proposed study is ancillary to two randomized phase III clinical trials in the LIFE-moms consortium (1U01HL114377-01, PI Phelan; 3U01DK094463-03S1, PIs Pi-Sunyer and Gallagher) that are examining the efficacy of multi-component lifestyle interventions to prevent excessive gestational weight gain in a total of 650 overweight/obese women. In this ancillary study, partners' weight, home environment, and psychosocial behaviors will be assessed when their pregnant partners are ~13 weeks gestation (study entry), 35 weeks gestation and at 6 and 12 months postpartum. We hypothesize that partners of pregnant women randomized to the lifestyle intervention, relative to those of standard care, will have greater weight losses through 12-months. Secondary aims examine partner improvements in weight control behaviors, the home environment, and psychosocial parameters. This project is highly innovative, as it capitalizes on existing funded research and is the first study to examine ripple effects of multicomponent prenatal interventions. The project also has high impact, as pregnancy is a powerful motivator for behavior and environmental changes in the home; and, if positive ripple effects occur, the field of obesity treatment and prevention could move beyond focus on individual level to the often unrecognized interpersonal effects of lifestyle interventions. PUBLIC HEALTH RELEVANCE: This research project will examine whether interventions to prevent excessive gestational weight gain have positive "ripple" effects on the health of untreated partners in the home.

Study Type

Observational

Enrollment (Actual)

122

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • San Luis Obispo, California, United States, 93407
        • California Polytechnic State University
    • New York
      • New York, New York, United States, 10027
        • Columbia University
    • Rhode Island
      • Providence, Rhode Island, United States, 02906
        • Miriam Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

This study uses a randomized repeated measures design. Partners will be categorized based on randomized status of their pregnant partner (in the parent grants; NIH 1U01HL114377-01, PI Phelan; NIH 3U01DK094418-01S1, PIs Redman and Martin). Partner participation in the ancillary study will not be mandatory for participation in the parent grant. NOTE: There is no intervention in partners.

Description

Inclusion Criteria:

  • Man or woman who self-identifies as sharing an intimate relationship and cohabitating in the home with the pregnant women (enrolled in the parent grant) for the previous 3 months or recently been married and living in the home
  • ≥18 years
  • willing to provide informed consent/assent

Exclusion Criteria:

  • None

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention partners
Partners of pregnant women randomized to lifestyle intervention. Note: There is no intervention in partners of pregnant women.
Standard care partners
Partners of pregnant women randomized to Standard Care. Note: There is no intervention in partners of pregnant women.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in weight of partners of pregnant women
Time Frame: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
Change in weight of partners of pregnant women randomized to the lifestyle intervention, relative to partners of pregnant women of standard care, from 13 weeks gestation to 35 weeks gestation and 6 and 12-months postpartum.
13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

Secondary Outcome Measures

Outcome Measure
Time Frame
Percent of partners with weight change loss >5%, 10%, and 15%
Time Frame: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
Change in calorie and fat intake
Time Frame: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
Change in physical activity levels
Time Frame: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
Change in sleep patterns and sleep hours
Time Frame: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
Change in self-monitoring
Time Frame: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
Change in food, exercise and sedentary cues in the home environment
Time Frame: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
Change in mood
Time Frame: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
Change in dietary restraint
Time Frame: 13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum
13 weeks gestation, 35 weeks gestation, 6 months and 12 months postpartum

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

California Polytechnic State University-San Luis Obispo

Collaborators

Columbia University
Brown University

Investigators

  • Principal Investigator: Todd A Hagobian, PhD, California Polytechnic State University-San Luis Obispo

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2013

Primary Completion (Actual)

July 1, 2017

Study Completion (Actual)

July 1, 2017

Study Registration Dates

First Submitted

January 8, 2013

First Submitted That Met QC Criteria

January 15, 2013

First Posted (Estimate)

January 17, 2013

Study Record Updates

Last Update Posted (Actual)

February 12, 2018

Last Update Submitted That Met QC Criteria

February 8, 2018

Last Verified

February 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1R01HL118208 (U.S. NIH Grant/Contract)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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