Reducing Sedentary Time in Obese Adults (Study 2)

Study Overview
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Brief Summary
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Greater time spent in sedentary behaviors, independent of physical activity level, can increase risk of morbidity and mortality. Objective assessments indicate that bariatric surgery patients spend large amounts of time in sedentary behaviors. The present study is the first to test whether a mobile health (mHealth) approach that employs widely adopted smartphone technology to monitor and modify sedentary behaviors as they occur is a feasible and acceptable method of reducing sedentary time in these patients and other obese populations.

Official Title
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A Mobile Health Approach to Reducing Sedentary Time in Bariatric Surgery Patients

Conditions
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Obesity

Intervention / Treatment
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* Behavioral: B-MOBILE Smartphone-Based Intervention (3-min break)
* Behavioral: B-MOBILE Smartphone-Based Intervention (6-min break)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Bariatric surgery patients and other obese individuals will be considered Body mass index >= 25 kg/m2 Exclusion Criteria: Report being unable to engage in daily activities and walk continuously for >= 10 minutes without assistance Are currently involved in a physical activity intervention. Are unable to read or understand the study materials Are currently taking medications that cause dizziness and/or feeling faint when sitting or standing. Report any condition that in the opinion of investigators would preclude adherence to the intervention protocol including plans to relocate, history of substance abuse or other significant psychiatric problems, or terminal illness.

Ages Eligible for Study
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Minimum Age: 21 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

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


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: B-MOBILE smartphone-based intervention (3-min break)<br>Participants will receive a smartphone with B-MOBILE app that automatically monitors their sedentary time and prompts them after every 30 continuous sedentary minutes to walk for at least 3 minutes. Participants who meet this goal will receive reinforcing feedback in real time. | Behavioral: B-MOBILE Smartphone-Based Intervention (3-min break)<br>* Participants will receive a smartphone with B-MOBILE app that automatically monitors their sedentary time and prompts them after every 30 continuous sedentary minutes to walk for at least 3 minutes. Participants who meet this goal will receive reinforcing feedback in real time.<br>|
| Experimental: B-MOBILE Smartphone-Based Intervention (6-min break)<br>Participants will receive a smartphone with B-MOBILE app that automatically monitors their sedentary time and prompts them after every 60 continuous sedentary minutes to walk for at least 6 minutes. Participants who meet this goal will receive reinforcing feedback in real time. | Behavioral: B-MOBILE Smartphone-Based Intervention (6-min break)<br>* Participants will receive a smartphone with B-MOBILE app that automatically monitors their sedentary time and prompts them after every 60 continuous sedentary minutes to walk for at least 6 minutes. Participants who meet this goal will receive reinforcing feedback in real time.<br>|
| No Intervention: Control<br> | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in percentage of daily sedentary time from baseline to post-intervention. |  | 8 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in percentage of daily sedentary time from baseline to follow-up |  | 12 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Sedentary behavior, Physical activity, Obesity, Mobile health, Smartphone, Time spent sedentary