[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100441029":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":25,"centralContacts":30,"locations":39,"responsibleParty":57,"collaborators":24,"id":59,"slug":60,"hasResults":61,"nctId":62,"briefTitle":63,"officialTitle":63,"acronym":24,"eligibilityCriteria":64,"healthyVolunteers":65,"sex":66,"minAge":67,"maxAge":68,"enrollmentInfo":69,"targetDuration":24,"studyType":72,"phases":73,"briefSummary":75,"conditions":76,"keywords":24,"overallStatus":41,"whyStopped":24,"lastUpdateSubmitDate":80,"lastUpdatePostDateStruct":81,"startDateStruct":84,"completionDateStruct":86,"leadSponsor":88,"locationsCount":89},{"fullName":5,"class":6},"Loma Linda University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Piriformis Strain-Counterstrain","EXPERIMENTAL","The treatment group will receive strain-counterstrain for the piriformis muscle.",[13],"Other: Strain-Counterstrain treatment of piriformis muscle",{"label":15,"type":16,"description":17,"interventionNames":18},"Hamstring Strain-Counterstrain","SHAM_COMPARATOR","The sham group will receive strain-counterstrain treatment for the hamstring muscle.",[13],[20],{"type":6,"name":21,"description":22,"armGroupLabels":23,"otherNames":24},"Strain-Counterstrain treatment of piriformis muscle","Participant will lay prone on table with affected leg close to edge of table. Piriformis muscle tender point is identified and palpated. Then patient leg is passively moved off table and passive hip flexion, abduction, and possible internal\u002Fexternal rotation is added to reduce tender point by 70% or more. This is done passively. This position is held for 90 seconds and then participant is passively returned back to neutral prone position with leg on table. Tender point is palpated again to reassess for change in pain (using subjective visual analog scale). An algometer is also used pre and post to assess objective change in pressure pain threshold.",[15,9],null,[26],{"name":27,"affiliation":28,"role":29},"Mickey Lui","Loma Linda University Health","PRINCIPAL_INVESTIGATOR",[31,36],{"name":32,"role":33,"phone":34,"phoneExt":24,"email":35},"Roya Vahdatinia, DO","CONTACT","9095586202","rvahdatinia@llu.edu",{"name":37,"role":33,"phone":34,"phoneExt":24,"email":38},"Mickey Lui, DO","Mickey.Lui@va.gov",[40],{"facility":28,"status":41,"city":42,"state":43,"zip":44,"country":45,"countryCode":46,"cosmosGeoPoint":47,"geoPoint":52,"contacts":53},"RECRUITING","Loma Linda","California","92350","United States","US",{"type":48,"coordinates":49},"Point",[50,51],-117.26115,34.04835,{"lat":51,"lon":50},[54],{"name":55,"role":33,"phone":56,"phoneExt":24,"email":24},"Mickey Lui, MD","909-558-1000",{"type":58,"investigatorFullName":24,"investigatorTitle":24,"investigatorAffiliation":24,"oldNameTitle":24,"oldOrganization":24},"SPONSOR","100441029","strain-counterstrain-treatment-of-piriformis-pain-100441029",false,"NCT05023005","Strain-Counterstrain Treatment of Piriformis Pain","Inclusion Criteria:\n\n* 18 to 65 years of age\n* Tender point (or trigger point) in piriformis muscle determined by physical exam\n\nExclusion criteria:\n\n* Less than 45 degrees of active hip flexion, less than 5 degrees of active hip internal rotation or less than 30 degrees of active hip external rotation, on side of affected piriformis\n* Unable to lay prone\n* Non-English speaker\n* Inability to attend 2 sessions within the same month\n* Active cancer\n* Pregnant\n* Diagnosis of lumbar radiculopathy\n* Greater than grade 1 lumbar spondylolisthesis\n* Presence of lumbar region Pars Defect\n* Receiving massage, acupuncture, chiropractic treatments, osteopathic treatments during study period.",true,"ALL","18 Years","65 Years",{"count":70,"type":71},30,"ESTIMATED","INTERVENTIONAL",[74],"NA","The purpose of this investigator-initiated study is to provide an efficient and non-invasive treatment option for pain caused by the piriformis muscle.",[77,78,79],"Low Back Pain, Mechanical","Piriformis Syndrome","Somatic Dysfunction of Sacral Region (Finding)","2026-04-21",{"date":82,"type":83},"2026-04-24","ACTUAL",{"date":85,"type":71},"2026-09",{"date":87,"type":71},"2027-09",{"name":5,"class":6},1]