NCT07467694Recruiting
Postnatal Exercise to Activate Baby's Brown Fat
Impact of Acute Exercise and Habitual Physical Activity on Human Milk Composition and Childhood Obesity Risk
Source: ClinicalTrials.gov · Last updated 12 Mar 2026
Brief summary (registry, in English)
The purpose of this study is to learn how exercise and physical activity during pregnancy and after pregnancy may affect the composition of breastmilk. Certain changes in breast milk after exercise may have an impact on how infants use energy. Understanding this process may improve public health recommendations for exercise during and after pregnancy. This study can help investigators learn more about how maternal exercise patterns may affect body growth and obesity risk in infants who are breastfed. This research may help identify how different factors can influence healthy weight and early development in infants.
- Status (registry)
- Recruiting
- Study type
- Interventional
- Enrollment
- 200 (estimated)
- First submitted
- 17 Feb 2026
- Start date
- Dec 2025
- Primary completion date
- Jul 2030
- Lead sponsor
- Joslin Diabetes Center
- Diseases
- Obesity
- NCT number
- NCT07467694
What you commit to
- Study type: Interventional
- Planned participants: 200
- From Dec 2025 to the primary completion date, Jul 2030
- 2 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Known congenital metabolic, endocrine disease, or congenital illness affecting infant feeding/growth
Lab values
- Diagnosis of uncontrolled (HbA1c \>7%) type 1 or type 2 diabetes, or gestational diabetes managed with insulin
Other
- Any obstetric contra-indication to exercise at 1 month
- Intrauterine growth restriction
- Pre-eclampsia or other pregnancy complications
- Alcohol, cannabis or tobacco use
- Major fetal anomalies
- Musculoskeletal issues that would make exercise difficult
Who the study is looking for
- 18-45 y of age at the time of enrollment
- Pre-gravid or first trimester BMI 18.5 -40 kg/m2
- Uncomplicated singleton pregnancy
- Intention to exclusively breastfeed for \>3 months and, if parity \>1, that they successfully breastfed a previous pregnancy
- Term pregnancy (gestational age 37 to \<42 weeks)
- Infant with birth weight \>10th percentile of weight for gestational age
Age in the registry: 18 years to 45 years · Sex: Female · Accepts healthy volunteers
Sites (2)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Joslin Diabetes Center Coordinator of this site? Confirm its status | Boston | United States | Recruiting |
| Oklahoma University College of Medicine Coordinator of this site? Confirm its status | Oklahoma City | United States | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.