[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100628903":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":18,"centralContacts":25,"locations":35,"responsibleParty":69,"collaborators":71,"id":77,"slug":78,"hasResults":79,"nctId":80,"briefTitle":81,"officialTitle":82,"acronym":83,"eligibilityCriteria":84,"healthyVolunteers":85,"sex":86,"minAge":87,"maxAge":88,"enrollmentInfo":89,"targetDuration":18,"studyType":92,"phases":93,"briefSummary":95,"conditions":96,"keywords":104,"overallStatus":37,"whyStopped":18,"lastUpdateSubmitDate":106,"lastUpdatePostDateStruct":107,"startDateStruct":110,"completionDateStruct":112,"leadSponsor":114,"locationsCount":115},{"fullName":5,"class":6},"Joslin Diabetes Center","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Enhanced physical activity","EXPERIMENTAL","Participants in this group will be encouraged to engage in daily physical activity",[13],"Behavioral: Active group",{"label":15,"type":16,"description":17,"interventionNames":18},"Control group","NO_INTERVENTION","Usual care",null,[20],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":18},"BEHAVIORAL","Active group","For participants randomized to the Active group, there will be weekly phone calls with study staff during which step counts and exercise bouts from the previous week will be reviewed, and exercise goals for the following week will be gradually increased.",[9],[26,31],{"name":27,"role":28,"phone":29,"phoneExt":18,"email":30},"Elvira M Isganaitis, MD, MPH","CONTACT","617-309-4554","elvira.isganaitis@joslin.harvard.edu",{"name":32,"role":28,"phone":33,"phoneExt":18,"email":34},"Study Coordinator","857-289-3455","PeaBaBy@joslin.harvard.edu",[36,52],{"facility":5,"status":37,"city":38,"state":39,"zip":40,"country":41,"countryCode":42,"cosmosGeoPoint":43,"geoPoint":48,"contacts":49},"RECRUITING","Boston","Massachusetts","02215","United States","US",{"type":44,"coordinates":45},"Point",[46,47],-71.05977,42.35843,{"lat":47,"lon":46},[50],{"name":51,"role":28,"phone":18,"phoneExt":18,"email":30},"Elvira Isganaitis, MD",{"facility":53,"status":37,"city":54,"state":55,"zip":56,"country":41,"countryCode":42,"cosmosGeoPoint":57,"geoPoint":61,"contacts":62},"Oklahoma University College of Medicine","Oklahoma City","Oklahoma","73104",{"type":44,"coordinates":58},[59,60],-97.51643,35.46756,{"lat":60,"lon":59},[63,66],{"name":64,"role":28,"phone":18,"phoneExt":18,"email":65},"Katy Duncan","katy-duncan@ou.edu",{"name":67,"role":68,"phone":18,"phoneExt":18,"email":18},"David Fields, PhD","PRINCIPAL_INVESTIGATOR",{"type":70,"investigatorFullName":18,"investigatorTitle":18,"investigatorAffiliation":18,"oldNameTitle":18,"oldOrganization":18},"SPONSOR",[72,74],{"name":73,"class":6},"University of Oklahoma",{"name":75,"class":76},"National Institutes of Health (NIH)","NIH","100628903","postnatal-exercise-to-activate-babys-brown-fat-100628903",false,"NCT07467694","Postnatal Exercise to Activate Baby's Brown Fat","Impact of Acute Exercise and Habitual Physical Activity on Human Milk Composition and Childhood Obesity Risk","PEABaBy","Inclusion Criteria:\n\n* 18-45 y of age at the time of enrollment\n* Pre-gravid or first trimester BMI 18.5 -40 kg\u002Fm2\n* Uncomplicated singleton pregnancy\n* Intention to exclusively breastfeed for \\>3 months and, if parity \\>1, that they successfully breastfed a previous pregnancy\n* Term pregnancy (gestational age 37 to \\\u003C42 weeks)\n* Infant with birth weight \\>10th percentile of weight for gestational age\n\nExclusion Criteria:\n\n* Any obstetric contra-indication to exercise at 1 month\n* Diagnosis of uncontrolled (HbA1c \\>7%) type 1 or type 2 diabetes, or gestational diabetes managed with insulin\n* Intrauterine growth restriction\n* Pre-eclampsia or other pregnancy complications\n* Alcohol, cannabis or tobacco use\n* Known congenital metabolic, endocrine disease, or congenital illness affecting infant feeding\u002Fgrowth\n* Major fetal anomalies\n* Musculoskeletal issues that would make exercise difficult",true,"FEMALE","18 Years","45 Years",{"count":90,"type":91},200,"ESTIMATED","INTERVENTIONAL",[94],"NA","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.",[97,98,99,100,101,102,103],"Childhood Obesity Prevention","Childhood Obesity","Physical Activity","Lactation","Breastfeeding","Pregnancy","Exercise",[100,101,105,102,103],"Breast milk","2026-03-11",{"date":108,"type":109},"2026-03-12","ACTUAL",{"date":111,"type":109},"2025-12-01",{"date":113,"type":91},"2030-07-01",{"name":5,"class":6},2]