[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100616032":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":30,"centralContacts":34,"locations":43,"responsibleParty":67,"collaborators":25,"id":70,"slug":25,"hasResults":71,"nctId":72,"briefTitle":73,"officialTitle":74,"acronym":75,"eligibilityCriteria":76,"healthyVolunteers":77,"sex":78,"minAge":79,"maxAge":80,"enrollmentInfo":81,"targetDuration":25,"studyType":84,"phases":85,"briefSummary":87,"conditions":88,"keywords":91,"overallStatus":46,"whyStopped":25,"lastUpdateSubmitDate":97,"lastUpdatePostDateStruct":98,"startDateStruct":101,"completionDateStruct":103,"leadSponsor":105,"locationsCount":106},{"fullName":5,"class":6},"University of Thessaly","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Exercise group","EXPERIMENTAL","Exercise group will participate in three hybrid-type high-intensity interval training sessions per week over a 12-week period, while receiving a balanced diet",[13],"Other: Exercise training",{"label":15,"type":16,"description":17,"interventionNames":18},"Control group","ACTIVE_COMPARATOR","Control group will receive a balanced diet but will not participate in exercise training",[19],"Other: Control",[21,26],{"type":6,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"Exercise training","Receive a balanced diet and participate in three hybrid-type high-intensity interval training sessions per week over a 12-week period",[9],null,{"type":6,"name":27,"description":28,"armGroupLabels":29,"otherNames":25},"Control","Receive a balanced diet but abstain from any type of exercise training",[15],[31],{"name":32,"affiliation":5,"role":33},"Dimitrios Draganidis, PhD","PRINCIPAL_INVESTIGATOR",[35,39],{"name":32,"role":36,"phone":37,"phoneExt":25,"email":38},"CONTACT","+302431047078","ddraganidis@uth.gr",{"name":40,"role":36,"phone":41,"phoneExt":25,"email":42},"Ioannis G Fatouros, PhD","2431047047","ifatouros@uth.gr",[44],{"facility":45,"status":46,"city":47,"state":48,"zip":49,"country":50,"countryCode":51,"cosmosGeoPoint":52,"geoPoint":57,"contacts":58},"Department of Physical Education and Sport Science, University of Thessaly","RECRUITING","Trikala","Karyes","42100","Greece","GR",{"type":53,"coordinates":54},"Point",[55,56],21.76837,39.55493,{"lat":56,"lon":55},[59,63,64],{"name":60,"role":36,"phone":61,"phoneExt":25,"email":62},"Athanasios Z Jamurtas, PhD","2431047054","ajamurt@uth.gr",{"name":40,"role":36,"phone":41,"phoneExt":25,"email":42},{"name":65,"role":66,"phone":25,"phoneExt":25,"email":25},"Eytychia Giouvri, BSc","SUB_INVESTIGATOR",{"type":33,"investigatorFullName":68,"investigatorTitle":69,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"Dimitrios Draganidis","Assistant Professor","100616032",false,"NCT07300332","Exercise Training and Vitamin D Metabolism","The Impact of Hybrid-type High-intensity Interval Training on Vitamin D Metabolism in Adults With Overweight\u002FObesity","Hybri-D","Inclusion Criteria:\n\n* BMI = 25-35 kg\u002Fm2\n* Absence of musculoskeletal injuries\n* Absence of chronic health-related complications\n* Non-smokers\n\nExclusion Criteria:\n\n* Consumption of Vitamin D supplements\n* Consumption of anti-inflammatory drugs, statins and\u002For steroids",true,"ALL","35 Years","50 Years",{"count":82,"type":83},30,"ESTIMATED","INTERVENTIONAL",[86],"NA","The prevalence of Vitamin D deficiency is significantly higher in adults with overweight\u002Fobesity compared to those with normal body mass index (BMI). The \"entrapment\" of Vitamin D in adipose tissue due to impaired lipolytic stimulation and\u002For adipose tissue dysfunction has been proposed as the driving mechanism. Exercise training has been proposed as a promising strategy to increase mobilization of Vitamin D from adipose tissue, given its well described role in stimulating lipolysis. Indeed, a recent study revealed that participation in moderate-intensity cardiovascular type exercise over winter can mitigate the decline in 25-hydroxyvitamin D \\[25(OH)D\\] in adults with overweight\u002Fobesity, independent of weight loss. The aim of this study is to investigate the impact of hybrid-type high-intensity interval training over winter on vitamin D metabolism, in adults with overweight\u002Fobesity.",[89,90],"Obesity & Overweight","Vitamin D",[92,93,94,95,96],"overweight","obesity","vitamin D","25-hydroxyvitamin D","high-intensity interval training","2026-05-22",{"date":99,"type":100},"2026-05-26","ACTUAL",{"date":102,"type":100},"2025-11-10",{"date":104,"type":83},"2026-07-20",{"name":5,"class":6},1]