[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100615815":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":15,"centralContacts":20,"locations":26,"responsibleParty":45,"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":64,"studyType":65,"phases":10,"briefSummary":66,"conditions":67,"keywords":69,"overallStatus":72,"whyStopped":10,"lastUpdateSubmitDate":73,"lastUpdatePostDateStruct":74,"startDateStruct":77,"completionDateStruct":79,"leadSponsor":81,"locationsCount":82},{"fullName":5,"class":6},"Kaohsiung Medical University","OTHER",[8,12],{"label":9,"type":10,"description":11,"interventionNames":10},"Health: Control group",null,"The group include athletes with no lower limbs injury.Participants must be aged 18-35 years and must be elite athletes who have competed in national-level competitions.",{"label":13,"type":10,"description":14,"interventionNames":10},"ACL reconstruction","Participants must be aged 18-35 years with unilateral ACL rupture confirmed by MRI, Lachman test grade ≥2, and reconstruction using hamstring or gracilis autograft with at least 6 months post-operative. Participants must have completed rehabilitation with clearance from an orthopedic surgeon or physical therapist, demonstrate no other lower extremity injuries, and have no contralateral lower limb injury within the past 3 months. Additionally, quadriceps strength symmetry index must be ≥90%, and participants must be elite athletes who have competed in national-level competitions.",[16],{"name":17,"affiliation":18,"role":19},"GUO L Y Professor and Dean of college, Ph.D.","Department of Sports Science, Kaohsiung Medical University, Taiwan","STUDY_CHAIR",[21],{"name":22,"role":23,"phone":24,"phoneExt":10,"email":25},"Teng C Y Kaohsiung Medical University, Bachelor","CONTACT","+886-958-392-604","a266422a@gmail.com",[27],{"facility":5,"status":10,"city":28,"state":10,"zip":10,"country":29,"countryCode":30,"cosmosGeoPoint":31,"geoPoint":36,"contacts":37},"Kaohsiung City","Taiwan","TW",{"type":32,"coordinates":33},"Point",[34,35],120.31333,22.61626,{"lat":35,"lon":34},[38,40],{"name":39,"role":23,"phone":24,"phoneExt":10,"email":25},"Teng C Y Undergraduate student of Sports Medicine, Bachelor's degree",{"name":41,"role":23,"phone":42,"phoneExt":43,"email":44},"Guo L Y Professor and Dean of the College of Health Sciences, Doctorate","+8867-3121101","#2646 #614","yuen@kmu.edu.tw",{"type":46,"investigatorFullName":47,"investigatorTitle":48,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Cheng-Yen Teng","Principal Investigator","100615815","application-of-multiple-vertical-jump-tests-in-return-to-play-assessment-for-anterior-cruciate-ligament-reconstruction-athletes-100615815",false,"NCT07297511","Application of Multiple Vertical Jump Tests in Return-to-Play Assessment for Anterior Cruciate Ligament Reconstruction Athletes","The Application of Vertical Jump Performance in Return-to-Play Assessment for Anterior Cruciate Ligament Reconstruction Athletes","RTP-VJ","Inclusion Criteria:\n\n* 1.Age 18-35 years\n\n  2.Unilateral anterior cruciate ligament (ACL) rupture confirmed by magnetic resonance imaging (MRI)\n\n  3.Positive Lachman test grade ≥2 pre-operatively\n\n  4.Anterior cruciate ligament reconstruction (ACLR) using hamstring or gracilis autograft\n\n  5.Post-operative time ≥6 months\n\n  6.Completed rehabilitation program with clearance from orthopedic surgeon or physical therapist\n\n  7.Quadriceps strength symmetry index ≥90%\n\n  .Elite athlete status (prior participation in national-level competitions)\n\nExclusion Criteria:\n\n1. Other lower extremity injuries or pathologies (including other knee ligament injuries)\n2. Contralateral lower limb injury within the past 3 months\n3. Quadriceps strength symmetry index \\\u003C90%\n4. Non-elite athlete status (no prior national-level competition participation)\n5. Incomplete rehabilitation or lack of medical clearance",true,"ALL","18 Years","35 Years",{"count":62,"type":63},36,"ESTIMATED","1 Day","OBSERVATIONAL","Anterior cruciate ligament (ACL) injury is a common sports-related injury, particularly in sports that require extensive jumping and cutting movements. Although anterior cruciate ligament reconstruction (ACLR) surgery can restore knee stability, many athletes still face the risk of re-injury after returning to competition.Current return-to-play assessment relies primarily on single-plane horizontal hop tests and symmetry indices (LSI ≥ 90%); however, an increasing body of research suggests that these tests may not comprehensively reflect functional deficits in the vertical plane, repeated hopping, or high-intensity sport-specific activities.This study hypothesizes that incorporating multiple vertical jump tests-including single-leg vertical jumps and 10-second repeated vertical jumps-combined with advanced force plate analytics (such as Reactive Strength Index \\[RSI\\] and Time to Stabilization \\[TTS\\])-can more sensitively reveal residual neuromuscular control deficits following surgery. This approach would provide evidence-based guidance for return-to-play decision-making, thereby improving athletes' long-term athletic performance and safety.",[68],"ACL Reconstruction",[13,70,71],"vertical jump test","return to play","NOT_YET_RECRUITING","2025-12-09",{"date":75,"type":76},"2025-12-22","ACTUAL",{"date":78,"type":63},"2025-12-29",{"date":80,"type":63},"2026-01-30",{"name":5,"class":6},1]