App aims to break the evening couch habit
NCT ID NCT06700525
First seen Jun 27, 2026 · Last updated Aug 18, 2026 · Updated 2 times
Summary
This study tests a smartphone app called StandUPTV that alerts adults after 30 minutes of evening screen time, encouraging them to stand or move. Researchers want to see if this can reduce total sitting time and improve physical activity, sleep quality, and blood sugar levels. The study involves 48 adults who currently sit for more than 3 hours a day and get little exercise.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 48 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2025
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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23 to 64 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Arizona State University
Tempe, Arizona, 85281, United States
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California Polytechnic University San Luis Obispo
San Luis Obispo, California, 93407, United States
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