Fitbit One and Text Messaging Prompts to Promote Physical Activity in Overweight/Obese Adults

NCT02188875 | Completed

• 1 other identifier: 130024
• Study Type: interventional
• Target: 67
• Locations: 1 country
• Sites: 1

Brief Summary

Previous studies suggest self-regulatory techniques including self-monitoring, and SMS text-messaging as an intervention modality, can modify health behaviors including physical activity (PA). The primary purpose of this study was to examine change in objectively measured PA in a randomized controlled pilot trial that tested a wearable sensor/device (Fitbit One) for self-monitoring and SMS text-messaging prompts to promote PA in overweight/obese adults. In a 2-group design, 67 participants were provided the Fitbit One and half were randomized to receive 3 daily SMS-based PA prompts. A Fitbit One was provided to facilitate self-monitoring with a wearable tracker for instant feedback and website of daily PA summaries. Outcome measures were number of steps and minutes of PA by intensity-level using two accelerometers: Actigraph GT3X+ (primary) at baseline and 6-week follow-up and Fitbit One (secondary) at baseline and weeks 1-6. The main hypothesis was that text messaging plus the Fitbit One would show a greater increase in steps and minutes of PA compared to only the Fitbit One at 6-week follow-up.

Conditions

Health Behavior; Obesity

Keywords

Fitbit One; wearable sensor; wearable device; web-based intervention; SMS text messages; randomized controlled trial; physical activity; behavioral intervention; text message prompts; text messaging; technology; exercise

Outcome Measures

Primary Outcomes (1)

• steps per day (Actigraph GT3X+)

  Number of steps per day was measured using Actigraph GT3X+ at baseline and 6-week follow-up

  up to 6 weeks

Secondary Outcomes (1)

• Minutes per week of physical activity by intensity level (Actigraph GT3X+)

  up to 6 weeks

Other Outcomes (2)

• Physical activity levels (Fitbit One)

  up to 6 weeks

• Steps per a day (Fitbit One)

  up to 6 weeks

Study Arms (2)

SMS Text Messages & Fitbit One

EXPERIMENTAL

All study participants were provided a Fitbit One to facilitate self-monitoring of PA. Those who were randomly assigned to the intervention group were asked to indicate 3 preferred times of the day to receive text message prompts to do PA throughout the 6-week study period.

Behavioral: SMS Text Messages & Fitbit One

Fitbit One Only

ACTIVE COMPARATOR

An active control group was also provided the Fitbit One to facilitate self-monitoring of PA throughout the 6-week study period.

Behavioral: Fitbit One Only

Interventions

SMS Text Messages & Fitbit One BEHAVIORAL

The primary aim was to test text-messaging in its basic form to prompt physical activity. A secondary aim was to examine the effects of the Fitbit One.

Also known as: Fitbit One, SMS text-messaging, SMS text-messages, wearable sensor, wearable device, text message reminders, text message prompts, Actigraph GT3X+, self-monitoring, self-regulation, physical activity, website, tracker, mobile application, mobile app, MVPA, fairly active minutes, very active minutes

SMS Text Messages & Fitbit One

Fitbit One Only BEHAVIORAL

Active controls received a Fitbit One to facilitate self-monitoring (and no text messages)

Also known as: Fitbit One, wearable sensor, wearable device, text message reminders, text message prompts, Actigraph GT3X+, self-monitoring, self-regulation, physical activity, website, tracker, mobile application, mobile app, MVPA, fairly active minutes, very active minutes

Fitbit One Only

Eligibility Criteria

• Age: 18 Years - 69 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• years of age
• overweight or obese (otherwise healthy)
• does not meet recommended levels of PA (\>150 min/wk of MVPA)
• owns a personal mobile phone and able to use SMS text-messaging
• owns a personal computer, has access to Internet, able to operate the Fitbit One
• fluent in English

Sponsors & Collaborators

• University of California, San Diego: lead
• Carol Vassiliadis Family: collaborator

Study Sites (1)

UCSD Moores Cancer Center

La Jolla, California, 92093, United States

Location

Related Links

• published manuscript of primary study results

MeSH Terms

Conditions

Health Behavior; Obesity; Motor Activity

Interventions

Wearable Electronic Devices; Blood Glucose Self-Monitoring; Professional Autonomy; Exercise

Condition Hierarchy (Ancestors)

Behavior; Overweight; Overnutrition; Nutrition Disorders; Nutritional and Metabolic Diseases; Body Weight; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Electrical Equipment and Supplies; Equipment and Supplies; Blood Chemical Analysis; Clinical Chemistry Tests; Clinical Laboratory Techniques; Diagnostic Techniques and Procedures; Diagnosis; Diagnostic Techniques, Endocrine; Monitoring, Physiologic; Self-Testing; Self Care; Therapeutics; Investigative Techniques; Professional Practice; Organization and Administration; Health Services Administration; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Julie Wang, PhD, MPH

  University of California, San Francisco

  PRINCIPAL INVESTIGATOR

• John Pierce, PhD

  University of California, San Diego

  STUDY CHAIR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: INVESTIGATOR
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 10, 2014
• First Posted: July 14, 2014
• Study Start: January 1, 2013
• Primary Completion: January 1, 2014
• Study Completion: January 1, 2014
• Last Updated: October 4, 2019

Record last verified: 2019-10

Locations

US (1)