CalFitness Smartphone-Delivered Physical Activity Intervention With Messaging

October 9, 2018 updated by: Anil Aswani, University of California, Berkeley

Mobile Phone-Based Physical Activity Intervention on University Staff

The overall goal of this study is to test personalized mobile phone-based physical activity interventions among students at the University of California, Berkeley. Most physical fitness applications for smartphones and activity trackers use a constant goal for the number of steps each day. However, if the step goals are dynamically adjusted according to past behavior, then the corresponding goals may encourage individuals to increase their physical activity level. This study consists of a randomized controlled trial in which we are assessing the efficacy of four different algorithms for calculating personalized goals for the number of steps each day and for determining which motivational messages to send each day.

Study Overview

Study Type

Interventional

Enrollment (Actual)

40

Phase

  • Not Applicable

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

    • California
      • Berkeley, California, United States, 94720
        • University of California, Berkeley

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 to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • intent to become physically active
  • own an iPhone 5s (or newer model)
  • willing to keep the iPhone in pockets during the day
  • willing to install and use the intervention app every day for 4 months
  • ability to speak and read English.

Exclusion Criteria:

  • known medical conditions or physical problems that require special attention in an exercise program
  • planning an international trip during the next 4 months, which could interfere with daily server uploads of mobile phone data
  • pregnant/gave birth during the past 6 months
  • severe hearing or speech problem
  • history of an eating disorder
  • current substance abuse
  • current participation in lifestyle modification programs or research studies that may confound study results
  • history of bariatric surgery or plans for bariatric surgery in the next 12 months.

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Constant Steps Goal
Step Goal Delivery by Smartphone
Step Goal Delivery by Smartphone
Experimental: Averaged Steps Goals and Random Messages
Step Goal Delivery by Smartphone Message Delivery by Smartphone
Step Goal Delivery by Smartphone
Message Delivery by Smartphone
Experimental: Algorithm Steps Goal and Random Messages
Step Goal Delivery by Smartphone Message Delivery by Smartphone
Step Goal Delivery by Smartphone
Message Delivery by Smartphone
Experimental: Algorithm Steps Goal and Messages
Step Goal Delivery by Smartphone Message Delivery by Smartphone
Step Goal Delivery by Smartphone
Message Delivery by Smartphone

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Daily Steps Taken Per Day
Time Frame: 10 weeks
10 weeks

Collaborators and Investigators

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

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 (Actual)

February 1, 2017

Primary Completion (Actual)

May 31, 2017

Study Completion (Actual)

May 31, 2017

Study Registration Dates

First Submitted

May 8, 2017

First Submitted That Met QC Criteria

May 8, 2017

First Posted (Actual)

May 10, 2017

Study Record Updates

Last Update Posted (Actual)

October 10, 2018

Last Update Submitted That Met QC Criteria

October 9, 2018

Last Verified

October 1, 2018

More Information

Terms related to this study

Other Study ID Numbers

  • 2016-03-8609

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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