[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100606918":3},{"organization":4,"outcomesModule":7,"designInfo":24,"detailedDescription":27,"studyPopulation":28,"armGroups":29,"interventions":23,"overallOfficials":33,"centralContacts":38,"locations":45,"responsibleParty":62,"collaborators":66,"id":70,"slug":23,"hasResults":71,"nctId":72,"briefTitle":73,"officialTitle":74,"acronym":23,"eligibilityCriteria":75,"healthyVolunteers":76,"sex":77,"minAge":78,"maxAge":23,"enrollmentInfo":79,"targetDuration":23,"studyType":82,"phases":23,"briefSummary":83,"conditions":84,"keywords":86,"overallStatus":89,"whyStopped":23,"lastUpdateSubmitDate":90,"lastUpdatePostDateStruct":91,"startDateStruct":94,"completionDateStruct":96,"leadSponsor":98,"locationsCount":99},{"fullName":5,"class":6},"Nevsehir Haci Bektas Veli University","OTHER",{"primaryOutcomes":8,"secondaryOutcomes":23,"otherOutcomes":23},[9,13,16,20],{"measure":10,"description":11,"timeFrame":12},"Cervical Joint Position Sense (Head Relocation Error)","With the help of algorithms, the initial position of the participant's nose tip on the screen will be recorded. Following flexion, extension, or rotation movements, the final position will be obtained, and the difference between the initial and final positions will be calculated in pixels and reported as the error score. While the primary output will be in pixels, this difference can also be expressed in degrees with the necessary conversions. Rotational movements performed during the measurement will be simultaneously recorded using the CROM device, and the values from the screen will be compared with those from the CROM to assess criterion validity, which provides the error magnitude directly in degrees. Measurements performed on the same group at two different time points will be analyzed using the Intraclass Correlation Coefficient (ICC), the Standard Error of Measurement (SEM), and Bland-Altman methods.","The test will be repeated at 1-hour intervals.",{"measure":14,"description":15,"timeFrame":12},"Cervical Movement Sense - Patterned Tracking","During the test, an F8 or ZZ shaped pattern will be displayed on the screen, and the participant will trace the pattern starting from the center using their nose tip. The algorithm will track the nose tip's position in each camera frame throughout the test: if the nose tip remains within the shape, the error score will be 0; if it moves outside, the distance to the nearest point of the shape will be calculated in pixels and recorded as the instantaneous error score. At the end of the test, all instantaneous error scores will be summed to obtain the total error score. The start and finish times of the test will also be recorded to determine the total test duration. Total error scores from measurements performed on the same group at different time points will be analyzed using the Intraclass Correlation Coefficient (ICC), the Standard Error of Measurement (SEM), and Bland-Altman methods.",{"measure":17,"description":18,"timeFrame":19},"Cervical Movement Sense - Target Tracking:","During the test, a rectangle will appear on the screen and move at a constant speed along the ZZ or F8 paths. The participant will attempt to keep their nose tip inside this moving rectangle. Since the speed is fixed, the test duration is the same for all participants.\n\nScoring Methods\n\nTime-Based Score: The total time the nose tip remains inside the rectangle is divided by the total test duration. The resulting ratio ranges from 0 to 1:\n\n1 → Best score (nose tip always inside)\n\n0 → Worst score (nose tip never inside)\n\nDistance-Based Score: For each frame, the algorithm calculates the distance from the nose tip to the rectangle:\n\nInside = 0\n\nOutside = distance in pixels to the nearest edge\n\nAt the end, all distances are summed to obtain the total deviation score. Both scores from measurements performed on the same group at different time points will be analyzed using the Intraclass Correlation Coefficient (ICC), the Standard Error of Measurement (SEM), and Bland-Altman methods.","The test will be repeated at 1-week intervals.",{"measure":21,"description":22,"timeFrame":12},"Sensorimotor Control Assessment","The test duration is 60 seconds. During this time, individual points will appear on the screen at random locations.\n\nThe participant's task is to move their nose tip over these points. When the nose tip correctly reaches a point:\n\nThe point will disappear,\n\nA new point will appear at a different location on the screen.\n\nAt the end of the test, the number of points the participant successfully matched with their nose tip within the 60 seconds will be counted, and this value will be recorded as the test score.\n\nThe test score obtained from measurements performed on the same group at different time points will be analyzed using the Intraclass Correlation Coefficient (ICC), the Standard Error of Measurement (SEM), and Bland-Altman methods.",null,{"allocation":23,"interventionModel":23,"interventionModelDescription":23,"primaryPurpose":23,"observationalModel":25,"timePerspective":26,"maskingInfo":23},"COHORT","PROSPECTIVE","This study aims to assess the test-retest reliability of computer-based cervical proprioception evaluations in healthy adults using OpenCV and MediaPipe for motion tracking. Participants will be seated in a controlled environment with a computer screen at eye level. The following four evaluations will be conducted:\n\nCervical Joint Position Sense (Head Relocation Error): Participants attempt to reposition their head to a perceived neutral position after flexion, extension, and rotation movements. The software records the deviation in pixels between actual and perceived head positions. Six trials per movement direction will be performed, with retesting after one hour.\n\nCervical Movement Sense - Patterned Tracking: Participants trace on-screen shapes (e.g., F8, ZZ) with their nose tip to evaluate movement accuracy. The total deviation from the ideal path in pixels will be measured. One practice trial and recorded attempts will be conducted, with retesting after one hour.\n\nCervical Movement Sense - Target Tracking: Participants follow a moving on-screen target with their nose tip. Tracking accuracy and time spent inside the target will be recorded. Three trials will be performed, with retesting after one week.\n\nSensorimotor Control Assessment: Participants align their head with randomly appearing visual targets for one minute. Performance will be evaluated based on the number of correct alignments and response accuracy. Three trials will be conducted, with retesting after one hour.\n\nAll data will be anonymized and analyzed for reliability using Intraclass Correlation Coefficient (ICC), Standard Error of Measurement (SEM), and Minimal Detectable Change (MDC). This non-invasive, computer-based methodology aims to provide a reliable and low-cost approach to assessing cervical joint position sense, movement perception, and sensorimotor control, contributing to future clinical and research applications.","The study population will consist of healthy adult volunteers aged 18 years and older, without any history of neck pain, spinal disorders, or other conditions affecting cervical mobility. Participants will be recruited from the general population.",[30],{"label":31,"type":23,"description":32,"interventionNames":23},"Healthy Volunteer Cohort","A single cohort of 74 healthy adult volunteers will undergo an observational test-retest reliability study of four cervical proprioception assessments using computer-vision tracking. No medical interventions will be administered.\n\nTwo distinct assessment protocols control for learning effects and follow literature-based retest intervals:\n\nProtocol A (n=37): Cervical Movement Sense Target Tracking at baseline and again after one week to assess longer-term reliability.\n\nProtocol B (n=37): Head Relocation Test in 32 participants at baseline and again after one hour. Cervical Movement Sense Patterned Tracking and Cervical Proprioceptive Function Test in all 37 participants at baseline and again after one hour to minimize short-term learning effects. Separate participant groups prevent cross-test learning, and retest intervals (1 hour vs. 1 week) align with prior studies.",[34],{"name":35,"affiliation":36,"role":37},"ismail Saraçoğlu, Associate Professor","Kütahya University of Health Sciences","PRINCIPAL_INVESTIGATOR",[39],{"name":40,"role":41,"phone":42,"phoneExt":43,"email":44},"Mustafa GÜVEN, Master of Science","CONTACT","0 384 471 45 75","31002","mguven1389@gmail.com",[46],{"facility":47,"status":23,"city":48,"state":49,"zip":50,"country":51,"countryCode":23,"cosmosGeoPoint":52,"geoPoint":57,"contacts":58},"Nevşehir Hacı Bektaş Veli University","Nevşehir","Kozakli","50600","Turkey (Türkiye)",{"type":53,"coordinates":54},"Point",[55,56],34.71222,38.625,{"lat":56,"lon":55},[59],{"name":60,"role":41,"phone":61,"phoneExt":43,"email":44},"Mustafa Güven, Master of Science","90 384 471 45 75",{"type":37,"investigatorFullName":63,"investigatorTitle":64,"investigatorAffiliation":65,"oldNameTitle":23,"oldOrganization":23},"Mustafa Güven","Lecturer and PhD Student, Principal Investigator","Kutahya Health Sciences University",[67],{"name":68,"class":69},"Health Institutes of Türkiye","UNKNOWN","100606918",false,"NCT07181798","Evaluation of Cervical Position and Movement Sense Using a Novel Computer Vision-Based Software","Evaluation of Cervical Position and Movement Sense Using Computer Vision Technology in Healthy Individuals","Inclusion Criteria:\n\n* Healthy individuals over 18 years of age\n* No neck pain\n\nExclusion Criteria:\n\n* Neck or spinal symptoms\n* History of cervical\u002Fspinal trauma or surgery\n* Chronic conditions affecting mobility\n* Visual or vestibular impairments",true,"ALL","18 Years",{"count":80,"type":81},74,"ESTIMATED","OBSERVATIONAL","This observational study evaluates cervical proprioception using a computer vision-based system developed with OpenCV and MediaPipe. Healthy adults will perform a series of head movements while their nose tip is tracked by a camera. The primary objective is to assess the accuracy of neck position and movement perception. Data will be analyzed to determine the reliability of the tracking system. The study is non-invasive, involves no interventions, and poses minimal risk to participants. Findings may support the development of accessible diagnostic tools for clinical and research applications.",[85],"Cervical Proprioception",[87,88],"Proprioception","Computer-Assisted Image Interpretation","NOT_YET_RECRUITING","2025-09-18",{"date":92,"type":93},"2025-09-24","ACTUAL",{"date":95,"type":81},"2025-09",{"date":97,"type":81},"2026-04",{"name":5,"class":6},1]