[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100626461":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":15,"centralContacts":20,"locations":29,"responsibleParty":41,"collaborators":10,"id":44,"slug":45,"hasResults":46,"nctId":47,"briefTitle":48,"officialTitle":49,"acronym":50,"eligibilityCriteria":51,"healthyVolunteers":52,"sex":53,"minAge":54,"maxAge":55,"enrollmentInfo":56,"targetDuration":10,"studyType":59,"phases":10,"briefSummary":60,"conditions":61,"keywords":63,"overallStatus":31,"whyStopped":10,"lastUpdateSubmitDate":73,"lastUpdatePostDateStruct":74,"startDateStruct":77,"completionDateStruct":79,"leadSponsor":81,"locationsCount":82},{"fullName":5,"class":6},"Istanbul Physical Medicine Rehabilitation Training and Research Hospital","OTHER_GOV",[8,12],{"label":9,"type":10,"description":11,"interventionNames":10},"Vitamin D Deficiency Group",null,"Participants with laboratory-confirmed vitamin D deficiency based on routine clinical test results. All participants will undergo standardized non-invasive postural stability and surface electromyography assessments in a single session.",{"label":13,"type":10,"description":14,"interventionNames":10},"Healthy Control Group","Participants with normal vitamin D status based on routine clinical test results and no history of balance or neuromuscular disorders. All participants will undergo standardized non-invasive postural stability and surface electromyography assessments in a single session.",[16],{"name":17,"affiliation":18,"role":19},"Selim Sezikli, MD","Istanbul Physical Medicine and Rehabilitation Training and Research Hospital","PRINCIPAL_INVESTIGATOR",[21,25],{"name":17,"role":22,"phone":23,"phoneExt":10,"email":24},"CONTACT","+905065101833","selimsezikli@hotmail.com",{"name":26,"role":22,"phone":27,"phoneExt":10,"email":28},"Ilhan Karacan, Prof.","+905327005361","mdkaracanilhan@gmail.com",[30],{"facility":18,"status":31,"city":32,"state":10,"zip":33,"country":34,"countryCode":10,"cosmosGeoPoint":35,"geoPoint":40,"contacts":10},"RECRUITING","Istanbul","34186","Turkey (Türkiye)",{"type":36,"coordinates":37},"Point",[38,39],28.94966,41.01384,{"lat":39,"lon":38},{"type":19,"investigatorFullName":42,"investigatorTitle":43,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"Selim Sezikli","Specialist in Physical Medicine and Rehabilitation","100626461","bone-myoregulation-reflex-and-postural-control-in-vitamin-d-deficiency-100626461",false,"NCT07435935","Bone Myoregulation Reflex and Postural Control in Vitamin D Deficiency","Investigation of Postural Stability and Load-Sensitive Neuromuscular Control Mechanisms in Vitamin D Deficiency","BMR-VITD","Inclusion Criteria:\n\n* Age 20 to 40 years.\n* Ability to provide written informed consent.\n* Vitamin D deficiency group: serum 25-hydroxyvitamin D level \\\u003C10 ng\u002FmL measured within the last 3 months (routine clinical testing).\n* Healthy control group: normal vitamin D status based on routine clinical testing within the last 3 months.\n* No use of vitamin D or calcium supplementation within the last 3 months.\n\nExclusion Criteria:\n\n* Known metabolic bone disease other than vitamin D deficiency.\n* Neurological disorder (central or peripheral) or neuromuscular disease.\n* History of lower-limb surgery, fracture, or prosthesis affecting standing balance.\n* Vestibular disorder.\n* BMI \\>30 kg\u002Fm2.\n* Active malignancy.\n* Severe psychiatric disorder.\n* Skin condition preventing placement of surface EMG electrodes.",true,"ALL","20 Years","40 Years",{"count":57,"type":58},24,"ESTIMATED","OBSERVATIONAL","This observational study aims to investigate the relationship between vitamin D deficiency, postural stability, and neuromuscular control mechanisms in adults. The study will compare individuals with vitamin D deficiency and healthy controls.\n\nParticipants will undergo a single-session evaluation including surface electromyography and postural stability assessments during standing tasks under different loading and vibration conditions. No invasive procedures, medications, or blood sampling will be performed. Previously obtained routine laboratory results will be used for vitamin D status.\n\nThe study is designed to improve understanding of neuromuscular responses associated with vitamin D deficiency and to contribute to future rehabilitation strategies.",[62],"Vitamin D Deficiency",[62,64,65,66,67,68,69,70,71,72],"Postural Stability","Balance Control","Neuromuscular Control","Surface Electromyography","Reflex Modulation","Bone Myoregulation Reflex","Standing Balance","Rehabilitation Research","Postural Sway","2026-05-22",{"date":75,"type":76},"2026-05-27","ACTUAL",{"date":78,"type":76},"2026-03-05",{"date":80,"type":58},"2026-07-05",{"name":5,"class":6},1]