Mobile Methods for Reducing Obesity Risk in Parents and Children

Not Applicable

Completed

• Conditions: Overweight and Obesity; Obesity; Overweight
• Interventions: Behavioral: Standard; Behavioral: Simple

• Registration Number: NCT03973424
• Lead Sponsor: University of North Carolina, Chapel Hill

Brief Summary

The purpose of this study is to test the efficacy of an innovative 6-month smartphone-delivered intervention using simplified monitoring of dietary intake compared to a smartphone-delivered intervention with standard calorie monitoring among parents with overweight or obesity.

Detailed Description

This is a 6-month randomized controlled trial comparing the efficacy of two smartphone-based dietary and weight change interventions among 70 parent-child dyads with at least one child between the ages of 2 and 12 (70 adults and 70 children ages 2-12). One intervention group (Simple) will use a simplified, low-burden form of dietary tracking in the study smartphone application and the other group (Standard) will use standard calorie tracking. Components of both interventions include (1) setting personalized goals for weight, dietary intake, and daily activity (2) adaptive text message interventions based on behavior change techniques such as goal setting and in-the-moment progress feedback several times per week, (3) weekly tailored feedback updated in the study smartphone app, and (4) weekly lessons on the smartphone app. The primary objective is to promote weight loss in the parents, and the secondary objective is to determine if one or both interventions produce a ripple effect of parent dietary change onto dietary changes in the child.

Study Timeline

• Study First Submitted: 2019-06-03
• Study First Submitted QC: 2019-06-03
• Study First Posted: 2019-06-04
• Study Start: 2019-08-14
• Primary Completion: 2020-05-06
• Study Completion: 2020-05-21
• Status Verified: 2020-06
• Last Update Submitted: 2020-06-15
• Last Update Posted: 2020-06-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 144

Inclusion Criteria

Not provided

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Exclusion Criteria

Not provided

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Standard	Standard	This arm uses standard calorie tracking, in addition to the core behavioral smartphone-delivered intervention that consists of weighing, physical activity, goal setting, adaptive text messages, tailored weekly feedback, and lessons.
Simple	Simple	This arm uses a simplified form of dietary tracking that involves tracking only high-calorie, high-fat foods, in addition to the core behavioral smartphone-delivered intervention that consists of weighing, physical activity, goal setting, adaptive text messages, tailored weekly feedback, and lessons.

Primary Outcome Measures

Name	Time	Method
Weight	Baseline, 6 Months	Absolute weight change from baseline to 6 months.
Percent weight loss: objective	Baseline, 6 Months	Weight change from baseline to 6 months calculated as a percent from baseline weight.

Secondary Outcome Measures

Name	Time	Method
Dietary tracking adherence	from Baseline to 6 Months	Number of days of complete dietary tracking summed over the 6-month study period.
Parent diet	Baseline, 6 Months	Change in parent daily caloric intake as measured by 24-hour dietary recall from baseline to 6 months.
Child diet	Baseline, 6 Months	Change in child daily caloric intake as measured by 24-hour dietary recall from baseline to 6 months.
Percent weight loss: WiFi scale	Baseline, 3 Months, 6 Months	Weight change calculated as a percent from baseline weight (measured in kg), using official assessment weights taken from participants' study-provided WiFi-enabled weighing scale and transmitted via WiFi, from baseline to 3, and 6 months.
Child BMI-percentile	Baseline, 6 Months	Change in child BMI-percentile using at-home measurements of child's weight (on parent WiFi-enabled scale) and height

Trial Locations

Locations (1)

University of North Carolina at Chapel Hill; 🇺🇸 Chapel Hill, North Carolina, United States