[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100576975":3},{"organization":4,"armGroups":7,"interventions":7,"overallOfficials":7,"centralContacts":8,"locations":14,"responsibleParty":33,"collaborators":7,"id":36,"slug":7,"hasResults":37,"nctId":38,"briefTitle":39,"officialTitle":40,"acronym":7,"eligibilityCriteria":41,"healthyVolunteers":42,"sex":43,"minAge":44,"maxAge":45,"enrollmentInfo":46,"targetDuration":7,"studyType":49,"phases":7,"briefSummary":50,"conditions":51,"keywords":7,"overallStatus":53,"whyStopped":7,"lastUpdateSubmitDate":54,"lastUpdatePostDateStruct":55,"startDateStruct":58,"completionDateStruct":60,"leadSponsor":62,"locationsCount":63},{"fullName":5,"class":6},"Charles University, Czech Republic","OTHER",null,[9],{"name":10,"role":11,"phone":12,"phoneExt":7,"email":13},"Michal Steffl, PhD","CONTACT","+420778701882","michal.steffl@ftvs.cuni.cz",[15],{"facility":16,"status":7,"city":17,"state":18,"zip":19,"country":20,"cosmosGeoPoint":21,"geoPoint":26,"contacts":27},"Faculty of Physical Education and Sport Charles University","Prague","Czech Republic","16200","Czechia",{"type":22,"coordinates":23},"Point",[24,25],14.42076,50.08804,{"lat":25,"lon":24},[28,30],{"name":29,"role":11,"phone":12,"phoneExt":7,"email":13},"Michal Steffl",{"name":31,"role":32,"phone":7,"phoneExt":7,"email":7},"Tereza Jandova, PhD","PRINCIPAL_INVESTIGATOR",{"type":32,"investigatorFullName":34,"investigatorTitle":35,"investigatorAffiliation":5,"oldNameTitle":7,"oldOrganization":7},"Michal Šteffl","ass. prof.","100576975",false,"NCT06792279","Detection of Muscle Quality in Children - Protocol for a Validation Study","Use of Ultrasound Echo Intensity for the Detection of Muscle Quality in Children - Protocol for a Validation Study","Inclusion Criteria:\n\n• Generally healthy children\n\nExclusion Criteria:\n\n* Acute illnesses\n* Chronic or acute diseases of the endocrine or musculoskeletal systems\n* Post-traumatic conditions",true,"ALL","10 Years","14 Years",{"count":47,"type":48},120,"ESTIMATED","OBSERVATIONAL","The goal of this observational study is to evaluate the validity and reliability of ultrasound echo intensity (EI) as a diagnostic tool for assessing muscle quality in children aged 10-14 years, including normal-weight, obese, and trained young athletes. The main questions it aims to answer are:\n\nCan EI reliably and accurately measure muscle quality in children when validated against gold-standard techniques like DXA and isokinetic dynamometry? What are the age-, sex-, and fitness-specific benchmarks for EI to differentiate between normal and pathological muscle quality?",[52],"Ultrasonography","NOT_YET_RECRUITING","2025-01-20",{"date":56,"type":57},"2025-01-24","ACTUAL",{"date":59,"type":48},"2025-03-01",{"date":61,"type":48},"2026-03-31",{"name":5,"class":6},1]