Sit Less, Move More program to increase physical activity during pregnancy
Official title: Effectiveness of Interventions to Promote Physical Activity During Pregnancy
Run by University of Central Florida · NCT07223112 · Data updated 2026-11-12
This program will try a Fitbit-based Sit Less, Move More plan to help pregnant women under 12 weeks gestation who do less than 150 minutes of activity per week sit less and move more.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 45 Years |
| Sex | Women only |
| Enrollment | 60 (estimated) |
| Sponsor | University of Central Florida Academic / other |
| Locations | 1 site (Orlando, Florida) |
| Status | Recruiting |
| Started | February 1, 2026 |
| Main results expected | August 2027 |
| Study ends | August 31, 2027 |
| Registry record updated | August 25, 2026 |
| Trial ID | NCT07223112 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are English-speaking women aged 18–45 with a singleton pregnancy at 8–12 weeks gestation who currently do less than 150 minutes/week of moderate activity and can use a smartphone or computer for Fitbit data and commit to an activity partner.
✕Probably not a fit
Women with medical restrictions on activity (for example placenta previa), those with multiple gestations, or women already meeting activity guidelines are unlikely to benefit from this program.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Using a behavioral clinical trial design, researchers will recruit 60 pregnant women with singleton pregnancies at 8–12 weeks gestation from prenatal clinics. Participants will wear an ActiGraph tracker for two weeks to measure baseline sedentary behavior and activity, then receive a Fitbit, a sedentary behavior and physical activity prescription, and coaching via text or email to prompt habit changes. The intervention emphasizes breaking up sitting time, increasing daily movement, and using an activity partner for support. Outcomes include changes in sedentary time, weekly physical activity minutes, and maternal and infant health measures.
Why it matters
Potential benefit: If successful, the program could reduce sedentary time and increase activity during pregnancy, potentially improving maternal mental health, weight gain, blood pressure, sleep, and infant outcomes.
How similar studies have gone: Wearable-based activity programs have shown promise for increasing physical activity in pregnant and nonpregnant adults, but focused sedentary-behavior interventions in pregnant women are relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Eligibility Criteria * 18 to 45 years old * speak English * 8 to 15 weeks, 6 days pregnant (gestation) * singleton pregnancy (no twins or more) * self-report less than 150 minutes/week of moderate-intensity physical activity * have or are willing to identify a physical activity partner * have a cell phone with the capacity for Fitbit application (app.); secure transmission of Fitbit data; receive coaching text messages or, if not, a computer they can use to synch the fitbit, send data, and receive email messages in lieu of texts. Exclusion Criteria • Women with physical activity restrictions (e.g., placenta previa) that prevent them from completing ACOG recommended pregnancy physical activity
Where it's running
-
Orlando Health
Orlando, Florida, United States Recruiting
Study contacts
- Principal investigator: Jean W Davis, PhD, DNP, EdD — University of Central Florida
- Study coordinator: Jean W Davis, PhD,DNP,EdD
- Email: jean.davis@ucf.edu
- Phone: 1-800-208-4545
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.