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NCT Number: NCT06700525

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

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.

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Key information

Conditions

Sedentary Behaviors Behavior Dyssomnias Glucose Metabolism HbA1c Level Mental Disorders Motor Activity Nervous System Diseases Physical Activity Screen Time Sedentary Behavior Sleep Disorders, Intrinsic Sleep Initiation and Maintenance Disorders Sleep Quality Sleep Wake Disorders

Age range

23 year–64 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Arizona State University, Tempe, Arizona, United States

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About this study

This mobile health (mHealth) pilot study aims to develop and test an intervention designed to maintain reductions in evening sedentary screen time (eSST) over a 12-month period. The study will target a nationally recruited sample of adults at risk for type 2 diabetes and will employ a novel habit formation strategy to address individual barriers to sustained behavior change. As a Phase II pilot study within the ORBIT Model framework, this research seeks to provide critical insights into the relationship between maintained reductions in eSST and metabolic health. The intervention combines theory- and evidence-based approaches, leveraging commercially available screen time monitoring tools to scale the StandUPTV application. This pilot study will lay the groundwork for a subsequent Phase III fully-powered randomized clinical trial, aiming to evaluate the impact of sustained eSST reduction on diabetes and cardiovascular disease risk in a national sample.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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 criteria

  • 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

Treatment and study plan

Non-Sedentary Behavior Habit Formation

Behavioral

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.

Sedentary Screen Time Reduction Smartphone App

Behavioral

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.

Primary outcomes

  1. Changes in Sedentary Screen Time

    Time frame: Baseline, 4 months, 12 months

    Minutes per week as measured by Stand UPTV app and activPAL

Secondary outcomes

  1. Changes in moderate to vigorous physical activity

    Time frame: Baseline, 4 months, 12 months

    Minutes per week as measured by activPAL

  2. Changes in Sleep Quality

    Time frame: Baseline, 4 months, 12 months

    Measured in minutes of deep sleep

  3. Changes in Glucose Metabolism

    Time frame: Baseline, 4 months, 12 months

    Measured HbA1c levels

  4. HbA1c Level

    Time frame: Baseline, 4 months, 12 months

    Participants continuous glucose monitoring data will be used to estimates HbA1c levels

Sponsors and collaborators

Lead sponsor

Arizona State University

Other

Collaborators

  • California Polytechnic State University-San Luis Obispo
  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
  • National Institutes of Health (NIH)

Registry information

Acronym: SUTV Habits

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Nov 22, 2024
Registry last updated
Jan 12, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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