[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100645326":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":10,"centralContacts":19,"locations":25,"responsibleParty":44,"collaborators":10,"id":49,"slug":50,"hasResults":51,"nctId":52,"briefTitle":53,"officialTitle":54,"acronym":55,"eligibilityCriteria":56,"healthyVolunteers":57,"sex":58,"minAge":59,"maxAge":60,"enrollmentInfo":61,"targetDuration":10,"studyType":64,"phases":10,"briefSummary":65,"conditions":66,"keywords":71,"overallStatus":84,"whyStopped":10,"lastUpdateSubmitDate":85,"lastUpdatePostDateStruct":86,"startDateStruct":89,"completionDateStruct":91,"leadSponsor":93,"locationsCount":94},{"fullName":5,"class":6},"Cairo University","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Sedentary adults",null,"Sedentary adults aged 18-45 years (55 male, 55 female) with bilateral hamstring tightness and no current low back pain, assessed for hamstring tightness (Active Knee Extension test) and lumbar lordosis angle (bubble inclinometer) across three functional sitting postures (upright, slumped, and forward-leaning).",[13],"Other: Hamstring tightness and lumbar lordosis assessment",[15],{"type":6,"name":16,"description":17,"armGroupLabels":18,"otherNames":10},"Hamstring tightness and lumbar lordosis assessment","Hamstring tightness measured bilaterally with the Active Knee Extension test (digital goniometer) and lumbar lordosis angle (T12-S2) measured with a bubble inclinometer across three functional sitting postures. No therapeutic intervention is administered; these are observational measurements only.",[9],[20],{"name":21,"role":22,"phone":23,"phoneExt":10,"email":24},"Ahmed youssef, physiotherapist","CONTACT","+201008650006","ahmedshamebella@gmail.com",[26],{"facility":27,"status":10,"city":28,"state":29,"zip":30,"country":31,"countryCode":32,"cosmosGeoPoint":33,"geoPoint":38,"contacts":39},"Nasser institute hospital","Cairo","Shubra Misr","12616","Egypt","EG",{"type":34,"coordinates":35},"Point",[36,37],31.24967,30.06263,{"lat":37,"lon":36},[40],{"name":41,"role":22,"phone":42,"phoneExt":10,"email":43},"nasser institute","22039356","Info@nasserinstitute.com",{"type":45,"investigatorFullName":46,"investigatorTitle":47,"investigatorAffiliation":48,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Ahmed youssef saleh saeed","physiotherapist","Nasser Institute For Research and Treatment","100645326","hamstring-tightness-and-lumbar-lordosis-angle-across-functional-sitting-postures-100645326",false,"NCT07682142","HAMSTRING TIGHTNESS AND LUMBAR LORDOSIS ANGLE ACROSS FUNCTIONAL SITTING POSTURES","CORRELATION BETWEEN HAMSTRING TIGHTNESS AND LUMBAR LORDOSIS ANGLE ACROSS FUNCTIONAL SITTING POSTURES IN SEDENTARY ADULTS.","LLA-HT","Inclusion Criteria:\n\n* Healthy adults aged 18-45 years.\n* Sedentary occupation requiring \\> 6 hours of sitting per day.\n* Active Knee Extension (AKE) angle \\>15°.\n* Bilateral hamstring tightness.\n* Sedentary individual as determined by IPAQ (MET≤ 600 min\u002Fweek).\n* Asymptomatic for low back pain at the time of testing.\n\nExclusion Criteria:\n\n* History of significant low back pain requiring medical treatment in the past 12 months.\n* Previous spinal surgery or structural spinal deformities.\n* Lower extremity injury or surgery within the past 6 months.\n* Neurological disorders affecting sensation or movement.\n* Pregnant female or get birth in the last year.\n* Body mass index (BMI) ≥ 30 kg\u002Fm².\n* postural deviations resulting from shortening of the iliopsoas and erector spinae or insufficiency of the core stabilizers and hip extensors",true,"ALL","18 Years","45 Years",{"count":62,"type":63},110,"ESTIMATED","OBSERVATIONAL","The goal of this observational study is to learn about the relationship between hamstring tightness and the lumbar lordosis angle in sedentary adults across different sitting postures. The main question it aims to answer is:\n\nIs hamstring tightness related to the lumbar lordosis angle across three functional sitting postures (upright, slumped, and forward-leaning)? It also asks whether hamstring tightness differs between men and women, whether it differs between the dominant and non-dominant leg, and whether the lumbar lordosis angle differs between men and women across the three postures.\n\nParticipants will have their hamstring tightness measured with the Active Knee Extension test and their lumbar lordosis angle measured with a bubble inclinometer while sitting in each of the three postures.",[67,68,69,70],"Hamstring Tightness","Lumbar Lordosis","Sedentary Behavior","Posture Sitting Position",[72,73,74,75,9,76,77,78,79,80,81,82,83],"Hamstring tightness","Lumbar lordosis","Sitting posture","Functional sitting postures","Active Knee Extension test","AKE test","bubble inclinometer","Pelvic tilt","Lumbopelvic rhythm","Limb dominance","Posterior pelvic tilt","Spinopelvic alignment","NOT_YET_RECRUITING","2026-06-27",{"date":87,"type":88},"2026-07-02","ACTUAL",{"date":90,"type":63},"2026-08-01",{"date":92,"type":63},"2026-12-01",{"name":5,"class":6},1]