NCT05794178
Testing Responses of Young Adults to Intervention Messages for Promoting Physical Activity Trial
Active, Not Recruiting
NAAges 18–29InterventionalPreventionUniversity of MichiganInvestigator-initiated
~360 participants
Updated 2026-05-22 on ClinicalTrials.gov
What's tested:EducationActivity trackerText messaging (random timing and selection)Text messaging (precision dosing)
At a glance
Recruiting sites
0 of 2 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Average daily step counts (6 months)
Measured over Change from baseline to 6 months
Conditions
Where it's being run
2 sites across 2 statesMichigan1
Pennsylvania1
Study leadership
- David E Conroy, PhD · PRINCIPAL_INVESTIGATOR · University of Michigan
- Constantino M Lagoa, PhD · PRINCIPAL_INVESTIGATOR · The Pennsylvania State University
Who to contact
This trial hasn't published a contact. View it on ClinicalTrials.gov
Do you actually qualify for this trial?
Add a private profile and we'll compare every criterion below against your situation — and tell you which ones are met, uncertain, or excluding.
Eligibility criteria
Inclusion
own an iPhone or Android smartphone that they would be willing to download the Fitbit app onto and sync with a Fitbit tracker and a custom, AIM app
willing to wear a Fitbit tracker almost continually (23.5 hours/day) for a 12- month period of time
free of visual impairment that would interfere with the receipt of text messages on their phone
capable of reading, speaking and understanding English and of giving informed consent
willing to complete a full 18-month study protocol
Exclusion
self-report sufficient aerobic activity to meet 2018 Physical Activity Guidelines for American adults
research-grade accelerometer records sufficient aerobic physical activity to meet 2018 Physical Activity Guidelines for American adults
living outside the continental US
one or more contraindications to physical activity
require an assistive device for mobility or have any other condition that may limit or prevent participation in moderate-intensity physical activity
pregnant or planning to become pregnant within the next 12 months
prior diagnosis of cancer, cardiovascular disease, diabetes or metabolic syndrome
concurrent participation in another research study involving physical activity or weight loss
planning to have surgery or relocate outside the continental US within the next year.
What this trial measures
- Average daily step counts (6 months)Change from baseline to 6 months
Average daily step counts recorded by Actigraph accelerometer over a 7-day monitoring period