[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100614917":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":20,"centralContacts":20,"locations":20,"responsibleParty":21,"collaborators":23,"id":28,"slug":29,"hasResults":30,"nctId":31,"briefTitle":32,"officialTitle":32,"acronym":20,"eligibilityCriteria":33,"healthyVolunteers":30,"sex":34,"minAge":35,"maxAge":36,"enrollmentInfo":37,"targetDuration":20,"studyType":40,"phases":41,"briefSummary":43,"conditions":44,"keywords":47,"overallStatus":61,"whyStopped":20,"lastUpdateSubmitDate":62,"lastUpdatePostDateStruct":63,"startDateStruct":66,"completionDateStruct":68,"leadSponsor":70,"locationsCount":20},{"fullName":5,"class":6},"Evidence In Motion","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Motor Imagery Extension Protocol","EXPERIMENTAL","Participants with low back pain who demonstrate a directional preference for extension will receive a single session of a guided motor imagery protocol simulating lumbar extension movements based on the McKenzie method. The intervention is designed to mentally replicate an extension press-up without requiring physical movement.",[13],"Behavioral: Motor Imagery-Based Lumbar Extension",[15],{"type":16,"name":17,"description":18,"armGroupLabels":19,"otherNames":20},"BEHAVIORAL","Motor Imagery-Based Lumbar Extension","Participants will lie prone with hands positioned under the shoulders in a standard \"pre-press-up\" position. With eyes closed, participants will be verbally guided through ten imagined lumbar extension press-ups. The standardized motor imagery script includes:\n\nFocusing attention on current back and leg symptoms\n\nImagining pushing the arms into extension\n\nVisualizing the back arching into extension\n\nHolding the imagined end-range position for several seconds\n\nImagining returning to the starting position in a controlled manner\n\nRepeating this process ten times\n\nTotal duration of the protocol is approximately 5 minutes.\n\nMode of Delivery:\n\nIn-person, guided by a physical therapist trained in the study protocol.\n\nPurpose:\n\nTo evaluate immediate changes in pain, disability, psychological measures, physical mobility, neurodynamic measures, and symptom centralization following a motor imagery-based extension intervention.",[9],null,{"type":22,"investigatorFullName":20,"investigatorTitle":20,"investigatorAffiliation":20,"oldNameTitle":20,"oldOrganization":20},"SPONSOR",[24,26],{"name":25,"class":6},"University of Nevada, Las Vegas",{"name":27,"class":6},"College of St. Scholastica, Inc.","100614917","virtual-mckenzie-exercises-and-centralization-of-pain-a-pilot-study-100614917",false,"NCT07285824","Virtual McKenzie Exercises and Centralization of Pain: A Pilot Study","Inclusion Criteria:\n\nAge 18 to 65 years\n\nPresenting to outpatient physical therapy with low back pain (LBP)\n\nAble to read and understand English\n\nNo red flags identified during review of systems and initial physical therapy evaluation\n\nNo prior spinal surgery\n\nDemonstrates a positive response to extension-based directional preference testing\n\nWilling and able to provide written informed consent\n\nExclusion Criteria:\n\nAge younger than 18 or older than 65\n\nInability to read or understand English\n\nPresence of red flags during review of systems (e.g., suspected fracture, malignancy, infection, cauda equina symptoms)\n\nHistory of spinal surgery\n\nNo demonstrable directional preference for extension during evaluation\n\nAny condition that the evaluating clinician determines would preclude safe participation\n\nDeclines to participate or is unable to provide informed consent","ALL","18 Years","65 Years",{"count":38,"type":39},40,"ESTIMATED","INTERVENTIONAL",[42],"NA","Low back pain (LBP) is frequently managed in physical therapy using the McKenzie method, in which a patient's directional preference-most commonly extension-is used to guide treatment. Extension-based interventions are associated with symptom improvement and centralization in many individuals with LBP. At the same time, research in pain neuroscience has shown that people with LBP may have altered cortical representations of the low back, which may contribute to pain and disability. For patients who experience high pain levels or significant fear of movement, active directional preference exercises may be difficult to perform.\n\nMotor imagery, the mental simulation of movement without physical execution, has been shown to activate brain regions involved in movement and may help modify altered cortical representations. Preliminary research has suggested that virtual or imagery-based McKenzie extension exercises may improve pain and movement-related outcomes.\n\nThis exploratory study aims to evaluate the immediate effects of a brief motor imagery-based extension protocol in adults with LBP who demonstrate a directional preference for extension. The study will assess changes in pain intensity, disability, fear-avoidance, pain catastrophization, lumbar flexion, straight leg raise, pain distribution, and symptom centralization following a single motor imagery session.",[45,46],"Chronic Pain","Low Back Pain",[46,45,48,49,50,51,52,53,54,55,56,57,58,59,60],"Directional Preference","McKenzie Method","Extension-Based Exercise","Motor Imagery","Virtual Exercise","Pain Centralization","Fear-Avoidance","Pain Catastrophization","Physical Therapy","Cortical Representation","Somatosensory Cortex (S1)","Body Schema","Disability","NOT_YET_RECRUITING","2025-12-03",{"date":64,"type":65},"2025-12-16","ACTUAL",{"date":67,"type":39},"2025-12",{"date":69,"type":39},"2026-11",{"name":5,"class":6}]