Columbia Moves Physical Activity

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the effect of adding a team competition comprised of members of existing social networks to a technology-delivered program for enhancing physical activity among insufficiently active adults.

Detailed Description
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This 3-month randomized controlled trial is designed to investigate the efficacy and feasibility of a novel, technology-oriented physical activity intervention characterized by existing social networks and a team competition. Participants will be recruited via emails, fliers, and word of mouth. They will be randomized to a technology-mediated physical activity treatment (TECH) or a treatment which receives an identical intervention as TECH plus a study designed team competition for physical activity promotion (TECH+COMP).

Official Title
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Evaluating Columbia Moves: A Social Network Approach Using a Team Competition and Technology to Increase Physical Activity

Conditions
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Physical Activity

Intervention / Treatment
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* Behavioral: TECH (Technology)
* Behavioral: TECH+COMP (Technology + Competition)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Insufficiently active as determined by a one-week, accelerometer-based physical activity measurement Body mass index (BMI) between 25 kg/m2 and 55 kg/m2 Between ages 18 and 65 years Access to computer with Internet connection Smartphone ownership (Android or iOS) Willing to be randomized to either one of the two study groups Part of a self-selected team of 3-8 eligible individuals Members of the same household cannot be part of separate groups Able to walk at least 1/4 mile without stopping Exclusion Criteria: Currently lactating, pregnant, or planning to become pregnant during the length of the study Diagnosed with type 1 or type 2 diabetes Medical or physical contraindications or limitations for engaging in physical activity History of major medical or psychiatric conditions Currently participating in a physical activity program

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 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 |
| --- | --- |
| Active Comparator: TECH (Technology)<br>Participants will receive a theory-based physical activity program. They will enroll in the study as part of a self-selected group of 3-8 individuals. They will be provided with a personal step goal and Fitbit Alta HR for self-monitoring physical activity. They will also have access to a study website that will be accessible across conventional and mobile platforms. They will be asked to visit the website each week to receive behavior change information and guidance. | Behavioral: TECH (Technology)<br>* Participants will receive a theory-based physical activity program. They will enroll in the study as part of a self-selected group of 3-8 individuals. They will be provided with a personal step goal and Fitbit Alta HR for self-monitoring physical activity. They will also have access to a study website that will be accessible across conventional and mobile platforms. They will be asked to visit the website each week to receive behavior change information and guidance. Device: Fitbit Alta HR<br>|
| Experimental: TECH+COMP (Technology + Competition)<br>Participants will receive the same intervention components as the TECH goup, as well as a study designed team competition. | Behavioral: TECH+COMP (Technology + Competition)<br>* Participants will receive the same intervention components as the TECH group, as well as a team competition. The competition will be based on the following two aspects: total daily steps accumulated relative to group size and total number of points retained for achieving weekly physical activity challenges. Device: Fitbit Alta HR<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Accelerometer-measured change from Baseline Daily Steps at 3 months and 12 months | Change in daily steps | 0, 3, and 12 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Accelerometer-measured change from Baseline Minutes of Moderate-to-Vigorous Physical Activity at 3 months and 12 months | Change in moderate-to-vigorous physical activity | 0, 3, and 12 months | 
| Change from Baseline in Perceived Social Support for Exercise (Sallis Social Support and Exercise Survey) at 3 and 12 months | Change in perceived social support for exercise (scale total score range: 1 to 5, with 1 representing low perceived social support for exercise and 5 representing high perceived social support for exercise; responses to all items are averaged to yield a total final score) | 0, 3, and 12 months |