[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100477764":3},{"organization":4,"armGroups":7,"interventions":25,"overallOfficials":19,"centralContacts":35,"locations":41,"responsibleParty":57,"collaborators":19,"id":61,"slug":62,"hasResults":63,"nctId":64,"briefTitle":65,"officialTitle":66,"acronym":19,"eligibilityCriteria":67,"healthyVolunteers":63,"sex":68,"minAge":69,"maxAge":70,"enrollmentInfo":71,"targetDuration":19,"studyType":74,"phases":75,"briefSummary":77,"conditions":78,"keywords":83,"overallStatus":44,"whyStopped":19,"lastUpdateSubmitDate":88,"lastUpdatePostDateStruct":89,"startDateStruct":92,"completionDateStruct":94,"leadSponsor":96,"locationsCount":97},{"fullName":5,"class":6},"Chinese University of Hong Kong","OTHER",[8,15,20],{"label":9,"type":10,"description":11,"interventionNames":12},"WBV + PEMF Group","EXPERIMENTAL","Patients in \"WBV + PEMF\" and \"WBV only\" groups will be required to attend the WBV therapy session in Prince of Wales Hospital twice a week, for 8 weeks, fulfilling a total of 16 sessions. Patients in \"WBV + PEMF\" groups will receive PEMF after WBV session.",[13,14],"Device: WBV","Device: PEMF",{"label":16,"type":17,"description":18,"interventionNames":19},"Control Group","NO_INTERVENTION","Subjects in control group will perform static squat, single leg squat and lunges without vibration.",null,{"label":21,"type":22,"description":23,"interventionNames":24},"WBV only","ACTIVE_COMPARATOR","Patients in \"WBV + PEMF\" and \"WBV only\" groups will be required to attend the WBV therapy session in Prince of Wales Hospital twice a week, for 8 weeks, fulfilling a total of 16 sessions. Patients in \"WBV\" groups will not receive PEMF after WBV session.",[13],[26,31],{"type":27,"name":28,"description":29,"armGroupLabels":30,"otherNames":19},"DEVICE","WBV","Whole body vibration (WBV) therapy",[9,21],{"type":27,"name":32,"description":33,"armGroupLabels":34,"otherNames":19},"PEMF","Pulsed electromagnetic fields (PEMF)",[9],[36],{"name":37,"role":38,"phone":39,"phoneExt":19,"email":40},"Michael Tim-Yun Ong, Prof.","CONTACT","85235052723","michael.ong@cuhk.edu.hk",[42],{"facility":43,"status":44,"city":45,"state":19,"zip":19,"country":45,"countryCode":46,"cosmosGeoPoint":47,"geoPoint":52,"contacts":53},"The Chinese University of Hong Kong","RECRUITING","Hong Kong","HK",{"type":48,"coordinates":49},"Point",[50,51],114.17469,22.27832,{"lat":51,"lon":50},[54],{"name":55,"role":38,"phone":56,"phoneExt":19,"email":40},"Michael Tim-Yun Ong","26364171",{"type":58,"investigatorFullName":59,"investigatorTitle":60,"investigatorAffiliation":5,"oldNameTitle":19,"oldOrganization":19},"PRINCIPAL_INVESTIGATOR","Prof. Tim-Yun Michael ONG","Clinical Assistant Professor","100477764","vibration-on-patellofemoral-joint-pain-after-aclr-100477764",false,"NCT05501210","Vibration on Patellofemoral Joint Pain After ACLR","The Effect of Whole-Body Vibration on Patellofemoral Joint Pain After Anterior Cruciate Ligament Reconstruction","Inclusion Criteria:\n\n1. Age between 18 to 60\n2. Unilateral ACLR\n3. Persisting PFJ pain\n4. Isolated symptomatic site or pathology\n\nExclusion Criteria:\n\n1. Age \\> 60\n2. Bilateral ACLR\n3. Revision ACLR\n4. Any rheumatological diseases\n5. Previous contralateral knee injury\n6. Any knee osteoarthritis","ALL","18 Years","60 Years",{"count":72,"type":73},50,"ESTIMATED","INTERVENTIONAL",[76],"NA","Anterior cruciate ligament (ACL) injury is a prevailing problem among sports participants, especially in non-contact sports. Studies have reported that 70-84% of ACL injuries are non-contact in nature, and movements like changing in direction while running, cutting and pivoting on a planted foot have resulted in a majority of ACL injuries. Even after ACL reconstruction (ACLR) surgeries, study has reported a 30-50% prevalence of developing patellofemoral joint (PFJ) pain in 1-2 years post-operation. Whole body vibration (WBV) therapy has been gaining attention as an effective method of training in recent years. It has been proved to have a positive effect on improving muscle strength, muscle activities, muscle power and loading during drop jump. Though duration of WBV may differ according to the effect of interest, several studies have had positive results with a 8 week WBV therapy in increasing muscle strength, proprioception, and post-ACLR knee functions. Further investigation on the underlying mechanism and possible application are to be continued to explore more possibilities with the WBV therapy.",[79,80,81,82],"Anterior Cruciate Ligament Injuries","Anterior Cruciate Ligament Rupture","Anterior Cruciate Ligament Tear","Patellofemoral Pain",[84,85,86,87],"ACLR","Patellofemoral joint","Whole Body vibration","Knee function","2026-03-17",{"date":90,"type":91},"2026-03-18","ACTUAL",{"date":93,"type":91},"2022-03-01",{"date":95,"type":73},"2029-09-01",{"name":5,"class":6},1]