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OpenTrials
Completed

NCT Number: NCT03148145

CalFitness Smartphone-Delivered Physical Activity Intervention With Messaging

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.

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Key information

Conditions

Sedentary Lifestyle Behavior Motor Activity Physical Activity Sedentary Behavior

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of California, Berkeley

Berkeley, California, 94720, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Step Goal Delivery by Smartphone

Behavioral

Step Goal Delivery by Smartphone

Message Delivery by Smartphone

Behavioral

Message Delivery by Smartphone

Primary outcomes

  1. Daily Steps Taken Per Day

    Time frame: 10 weeks

Sponsors and collaborators

Lead sponsor

University of California, Berkeley

Other

Registry information

Official study title

Mobile Phone-Based Physical Activity Intervention on University Staff

Important dates

Study start
2017
Primary completion
2017
Study completion
2017
First posted
May 10, 2017
Registry last updated
Oct 10, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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