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

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

67 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-01-31

Study Completion Date

2014-01-31

Brief Summary

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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.

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Detailed Description

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Conditions

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Health Behavior Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Investigators

Study Groups

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SMS Text Messages & Fitbit One

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.

Group Type EXPERIMENTAL

SMS Text Messages & Fitbit One

Intervention Type 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.

Fitbit One Only

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

Group Type ACTIVE_COMPARATOR

Fitbit One Only

Intervention Type BEHAVIORAL

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

Interventions

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SMS Text Messages & Fitbit One

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.

Intervention Type BEHAVIORAL

Fitbit One Only

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

Intervention Type BEHAVIORAL

Other Intervention Names

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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 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

Eligibility Criteria

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Inclusion Criteria

* 18-69 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

Minimum Eligible Age

18 Years

Maximum Eligible Age

69 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes