[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100633846":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":19,"centralContacts":20,"locations":26,"responsibleParty":44,"collaborators":19,"id":48,"slug":49,"hasResults":50,"nctId":51,"briefTitle":52,"officialTitle":53,"acronym":54,"eligibilityCriteria":55,"healthyVolunteers":56,"sex":57,"minAge":58,"maxAge":59,"enrollmentInfo":60,"targetDuration":19,"studyType":63,"phases":64,"briefSummary":66,"conditions":67,"keywords":69,"overallStatus":72,"whyStopped":19,"lastUpdateSubmitDate":73,"lastUpdatePostDateStruct":74,"startDateStruct":77,"completionDateStruct":79,"leadSponsor":81,"locationsCount":82},{"fullName":5,"class":6},"Sinop University","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Healthy Adult Assessment Group","EXPERIMENTAL","Healthy adult participants will attend a single study visit and undergo resting hemodynamic and heart rate variability (HRV) assessment under standardized conditions. After an adaptation period, systolic blood pressure, diastolic blood pressure, and pulse will be measured using an automated oscillometric blood pressure monitor. A continuous RR interval recording will then be obtained using the Polar H10 chest strap. HRV parameters will be derived from predefined 1-minute, 5-minute, 10-minute, and 20-minute analysis windows extracted from the same recording for methodological comparison.",[13],"Other: Heart Rate Variability and Blood Pressure Assessment",[15],{"type":6,"name":16,"description":17,"armGroupLabels":18,"otherNames":19},"Heart Rate Variability and Blood Pressure Assessment","Participants will complete a single-visit resting physiological assessment under standardized conditions. After an adaptation period, systolic blood pressure, diastolic blood pressure, and pulse will be measured using an automated oscillometric upper-arm blood pressure monitor. Continuous RR interval data will then be recorded using the Polar H10 chest strap and analyzed with Kubios HRV software. Heart rate variability parameters will be calculated from predefined 1-minute, 5-minute, 10-minute, and 20-minute analysis windows extracted from the same continuous recording for methodological comparison.",[9],null,[21],{"name":22,"role":23,"phone":24,"phoneExt":19,"email":25},"Sefa Haktan Hatık, PhD","CONTACT","+90 368 271 55 28","haktanhtk@gmail.com",[27],{"facility":28,"status":19,"city":29,"state":19,"zip":19,"country":30,"countryCode":19,"cosmosGeoPoint":31,"geoPoint":36,"contacts":37},"Artvin Coruh University, Artvin Vocational School, Disabled Care and Rehabilitation Laboratory, Artvin,","Artvin","Turkey (Türkiye)",{"type":32,"coordinates":33},"Point",[34,35],41.82172,41.18161,{"lat":35,"lon":34},[38,42],{"name":39,"role":23,"phone":40,"phoneExt":19,"email":41},"Ömer Dicle Kızıl, MSc","+90 541 523 36 91","omerdiclekizil@gmail.com",{"name":39,"role":43,"phone":19,"phoneExt":19,"email":19},"SUB_INVESTIGATOR",{"type":45,"investigatorFullName":46,"investigatorTitle":47,"investigatorAffiliation":5,"oldNameTitle":19,"oldOrganization":19},"PRINCIPAL_INVESTIGATOR","SEFA HAKTAN HATIK","Assistant professor","100633846","comparison-of-heart-rate-variability-analysis-durations-and-their-relationship-with-blood-pressure-100633846",false,"NCT07531992","Comparison of Heart Rate Variability Analysis Durations and Their Relationship With Blood Pressure","Comparison of Heart Rate Variability Analysis Durations and Their Relationship With Blood Pressure: A Methodological Comparative Study","HRV-BP","Inclusion Criteria:\n\n* Healthy adults aged 18 to 40 years\n* Willing and able to provide informed consent\n* Able to comply with pre-assessment instructions, including restrictions related to caffeine intake and strenuous physical activity\n* No condition preventing heart rate variability and blood pressure measurements\n\nExclusion Criteria:\n\n* History of diagnosed cardiovascular, neurological, or autonomic nervous system disease\n* Known arrhythmia or pacemaker use\n* Regular use of medications that may affect heart rate variability, such as beta blockers or antiarrhythmic drugs\n* Acute infection, fever, or any condition affecting general health status on the day of assessment\n* Severe motion artifact during measurement or technically unusable recordings",true,"ALL","18 Years","40 Years",{"count":61,"type":62},40,"ESTIMATED","INTERVENTIONAL",[65],"NA","This observational study aims to compare heart rate variability (HRV) parameters obtained from different analysis durations in healthy adults and to examine how these parameters relate to resting blood pressure values. HRV is a noninvasive measure commonly used to assess autonomic nervous system activity. Standard short-term HRV analysis is typically based on 5-minute recordings, but shorter and longer analysis durations are also used in research and practice. This study will evaluate whether HRV values derived from 1-minute, 5-minute, 10-minute, and 20-minute analysis windows differ from one another and whether their relationships with systolic blood pressure, diastolic blood pressure, and mean arterial pressure change according to analysis duration. Participants will attend a single study visit. After a rest period, resting blood pressure and pulse will be measured, and a continuous HRV recording will be obtained using a chest strap device. The study is designed to provide methodological information on the comparability of different HRV analysis durations under the same physiological conditions.",[68],"Heart Rate Variability",[68,70,71],"HRV","Autonomic Nervous System","NOT_YET_RECRUITING","2026-04-13",{"date":75,"type":76},"2026-04-15","ACTUAL",{"date":78,"type":62},"2026-05-01",{"date":80,"type":62},"2026-09-15",{"name":5,"class":6},1]