mDiet - Ecological Momentary Intervention of Diet Via Mobile Technology

Ecological Momentary Intervention of Diet Via Mobile Technology

This is a NCI funded study which will develop and evaluate a cell phone application (mDIET) that can be used as an assessment and intervention tool to improve dietary behaviors and thus reduce weight in overweight and moderately obese (BMI 25-34.9) men and women ages 25-55.

Study Overview

• Status: Completed
• Conditions: Overweight
• Intervention / Treatment: Behavioral: Printed Material; Behavioral: Weekly Weighing; Behavioral: Cell phone will serve as a self monitoring device; Device: Text Message; Behavioral: Diet Goals via Cell Phone; Behavioral: Food Monitoring

Detailed Description

This research will develop a technologically advanced system for monitoring and intervening on diet behaviors (e.g., food intake, weight). Interventions aimed at dietary change are missing a comparable, portable tool. Mobile technologies can help fill this gap by providing portable connectivity to expert systems that create specific tailored diet goals based on participant profiles. The expert system can 'push' intervention messages throughout the day during critical point-of-decision moments to aid in decision making among users. The portable device can 'pull' information through prompts and easy-to-use recording. This ecological momentary assessment + ecological momentary intervention format may further encourage healthy behaviors by prompting at critical decision points to improve dietary behaviors.

• Study Type: Interventional
• Enrollment (Actual): 65
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • California
    • La Jolla, California, United States, 92037
      • UCSD Professional Suites

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 25 years to 55 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Participants will be included if they:

  • Are age 25-55
  • Are overweight or moderately obese
  • Are with a BMI between 25.0-34.9 (as defined by the NIH report on Obesity (NIH 1998)
  • Are able to read (completion of at least the 6th grade) and speak English
  • Provide consent
  • Do not intend to become pregnant or move out of the county for the duration of the intervention (16 weeks).
• Participants will also be required to have a cell phone that is capable of supporting the mDIET application.
• Participants may be otherwise healthy or have one or more risk factors for CVD, including uncomplicated Type 2 diabetes but will not be enrolled if they have diagnosed CVD.

Exclusion Criteria:

Participants will be excluded from the study if they have any of the following conditions:

• An eating disorder
• Are currently pregnant
• Have a strict dietary regimen prescribed by their doctor that will not allow them to comply with intervention guidelines related to dietary changes.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
No Intervention: Control
Experimental: PACE; Received text messages and counseling calls	Behavioral: Printed Material; Printed Material; Behavioral: Weekly Weighing; Weekly Weighing; Behavioral: Cell phone will serve as a self monitoring device; Cell phone will serve as a self monitoring device; Device: Text Message; Text Message; Behavioral: Diet Goals via Cell Phone; Diet Goals via Cell Phone; Behavioral: Food Monitoring; Food Monitoring

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Mean Weight (kg)	4 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Program Satisfaction	Participants reported a 2 if they liked the program, 1 if they felt neutral about the program, and 0 if they did not like program. Higher scores reflect greater satisfaction.	4 months
Compliance With Food Monitoring Activities		4 months

Collaborators and Investigators

• Sponsor: University of California, San Diego

Publications and helpful links

General Publications

• Norman GJ, Kolodziejczyk JK, Adams MA, Patrick K, Marshall SJ. Fruit and vegetable intake and eating behaviors mediate the effect of a randomized text-message based weight loss program. Prev Med. 2013 Jan;56(1):3-7. doi: 10.1016/j.ypmed.2012.10.012. Epub 2012 Oct 22.
• Patrick K, Raab F, Adams MA, Dillon L, Zabinski M, Rock CL, Griswold WG, Norman GJ. A text message-based intervention for weight loss: randomized controlled trial. J Med Internet Res. 2009 Jan 13;11(1):e1. doi: 10.2196/jmir.1100.

Study record dates

Study Major Dates

• Study Start: June 1, 2007
• Primary Completion (Actual): April 1, 2009
• Study Completion (Actual): April 1, 2009

Study Registration Dates

• First Submitted: December 22, 2006
• First Submitted That Met QC Criteria: December 23, 2006
• First Posted (Estimate): December 25, 2006

Study Record Updates

• Last Update Posted (Actual): April 30, 2019
• Last Update Submitted That Met QC Criteria: April 18, 2019
• Last Verified: April 1, 2019

More Information

Terms related to this study

• Keywords: Overweight; Technology; Cell Phone
• Additional Relevant MeSH Terms: Body Weight; Overweight
• Other Study ID Numbers: 1R21CA115615-01A1 (U.S. NIH Grant/Contract); 2005-4148 UCSD Number