RecruitingNot ApplicableNCT06700525

StandUPTV Habits: Feasibility Trial for Maintaining Reductions in Sedentary Screen Time

Sponsor

Arizona State University

Enrollment

48 participants

Start Date

Jul 1, 2025

Study Type

INTERVENTIONAL

Conditions

Sedentary behaviors Glucose metabolism Sleep Quality Physical Activity HbA1c Level Screen time

Summary

Our goal in this study is to further refine StandUPTV, an application designed to reduce SST in adults in our first study (ASU IRB # STUDY00012109), for the StandUPTV Habits program. This program aims to establish a non-sedentary habit triggered by an alert from the StandUPTV application after participants engage in approximately 30 minutes of SST in the evening.

Eligibility

Min Age: 23 YearsMax Age: 64 Years

Inclusion Criteria11

Insufficiently active as defined by not meeting current US National Guidelines for Physical Activity of 150 minutes of MVPA/week (Measured by the Stanford
Leisure-Time Activity Categorical Item)
> 3 hours of SST per day
Use Android (8.0+) smartphone (8.0+ represents 95% of Android device coverage per https://apilevels.com/)
Have regular broadband internet in their home or an unlimited data plan
Able to read/understand English (>5th grade literacy)
Willing to download StandUPTV Habits
Willing to wear activPAL and CGM device during study assessment periods
Willing to have data shared in de-identified form in Dexcom Clarity platform
Willing to be randomized to either study condition
Not traveling overnight or longer in the next 4 months

Exclusion Criteria10

Planned relocation
Current smoker
Have a major illness (e.g., heart disease, cancer, renal disease) for which MVPA is contraindicated
Diagnosed with diabetes or gestational diabetes in the past
Currently using a CGM
Pregnant
Occupation that requires substantial use of personal device for media-related activities (e.g., social media)
Drug abuse
Serious psychological disorder
Not willing to use Fitbit or smart plugs for calculation of sedentary screen time for functionality of StandUPTV app

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Interventions

BEHAVIORALNon-Sedentary Behavior Habit Formation

Action Plans Addition to the StandUPTV platform: The StandUPTV mHealth platform will be used to assess SST and deliver behavior change components. Participants will receive a technology kit including a Fitbit Charge 4+ and Wi-Fi-enabled smart plugs. The Fitbit and smart plugs will need to be used for the entire duration of the study participation. Participants will also be assisted with establishing an action plan for a non-sedentary break from evening sedentary screen time, which will be trigger by a StandUPTV alert delivered after performing 30 minutes of evening sedentary screen time.

BEHAVIORALSedentary Screen Time Reduction Smartphone App

The StandUPTV application is used to monitor and reduce sedentary screen time (SST). The StandUPTV app has three components: LOCKOUT: Electronic lockout turns off screens when a predetermined limit is reached (50% of baseline value of weekly sedentary screen time). The app also includes planning tools and personalized strategies to limit SST. TEXT: Push notification prompts provide reminders, coaching, and personalized feedback (up to 2 per day). EARN: Opportunities to earn SST by engaging in MVPA, measured in 10-minute bouts.