[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100627257":3},{"organization":4,"outcomesModule":7,"designInfo":42,"detailedDescription":45,"studyPopulation":46,"armGroups":47,"interventions":57,"overallOfficials":63,"centralContacts":67,"locations":75,"responsibleParty":88,"collaborators":41,"id":91,"slug":41,"hasResults":92,"nctId":93,"briefTitle":94,"officialTitle":95,"acronym":41,"eligibilityCriteria":96,"healthyVolunteers":97,"sex":98,"minAge":99,"maxAge":100,"enrollmentInfo":101,"targetDuration":41,"studyType":104,"phases":41,"briefSummary":105,"conditions":106,"keywords":108,"overallStatus":77,"whyStopped":41,"lastUpdateSubmitDate":113,"lastUpdatePostDateStruct":114,"startDateStruct":117,"completionDateStruct":119,"leadSponsor":121,"locationsCount":122},{"fullName":5,"class":6},"National Yang Ming Chiao Tung University","OTHER",{"primaryOutcomes":8,"secondaryOutcomes":19,"otherOutcomes":41},[9,13,16],{"measure":10,"description":11,"timeFrame":12},"Trunk muscles activation during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack","The root mean square of electromyography (EMG) data of bilateral erector spinae and bilateral abdominal external oblique will be normalized by the maximum voluntary contraction amplitude (percentage of maximal voluntary contraction, %)","Immediately during the experiment",{"measure":14,"description":15,"timeFrame":12},"Trunk kinematics during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack","Trunk kinematics, including flexion, extension, lateral flexion and rotation, were measured in degrees (°) across four conditions: forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.",{"measure":17,"description":18,"timeFrame":12},"Upper limbs muscles activation during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack","The root mean square of electromyography (EMG) data of the biceps brachii, triceps brachii, anterior deltoid, and pectoralis Major will be normalized by the maximum voluntary contraction amplitude (percentage of maximal voluntary contraction, %) and calculated over forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.",[20,23,26,29,32,35,38],{"measure":21,"description":22,"timeFrame":12},"Trunk mobility","Range of motion of the thoracolumbar spine, described with degrees (°).",{"measure":24,"description":25,"timeFrame":12},"Shoulder mobility","Range of motion of the glenohumeral joint, described with degrees (°).",{"measure":27,"description":28,"timeFrame":12},"Shoulder motor control","A clinical assessment of movement quality during shoulder flexion, abduction, external rotation, and internal rotation",{"measure":30,"description":31,"timeFrame":12},"Trunk motor control","A clinical assessment of movement quality during trunk rotation",{"measure":33,"description":34,"timeFrame":12},"Shoulder kinematics during forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack","Shoulder kinematics, including flexion, abduction, horizontal adduction and horizontal adduction, were measured in degrees (°) across four conditions: forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.",{"measure":36,"description":37,"timeFrame":12},"Trunk muscle strength","Isometric muscle strength of the erector spinae and external oblique abdominal muscles will be evaluated using a hand-held dynamometer (MicroFET2). Data will be expressed in newton (N).",{"measure":39,"description":40,"timeFrame":12},"Shoulder muscle strength","Isometric muscle strength of the biceps brachii, triceps brachii, anterior deltoid and pectoralis major muscles will be evaluated using a hand-held dynamometer (MicroFET2). Data will be expressed in newton (N).",null,{"allocation":41,"interventionModel":41,"interventionModelDescription":41,"primaryPurpose":41,"observationalModel":43,"timePerspective":44,"maskingInfo":41},"COHORT","CROSS_SECTIONAL","The study participants will be elite table tennis players aged between 13 and 40. Participants must have competed in the Chinese Taipei Table Tennis Ranking Tournament or the National Table Tennis Championships within the past three years and have at least four years of table tennis experience, and train for more than 10 hours per week.\n\nThe study involves four types of forehand strokes: forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack.","Table tennis players",[48,53],{"label":49,"type":41,"description":50,"interventionNames":51},"table tennis players (healthy group)","elite table tennis players without shoulder pain",[52],"Device: motion capture system, surface electromyography",{"label":54,"type":41,"description":55,"interventionNames":56},"table tennis players (shoulder pain group)","elite table tennis players with shoulder pain",[52],[58],{"type":59,"name":60,"description":61,"armGroupLabels":62,"otherNames":41},"DEVICE","motion capture system, surface electromyography","forehand topspin against topspin, forehand topspin against backspin, forehand stroke, and forehand attack",[49,54],[64],{"name":65,"affiliation":5,"role":66},"YIN-LIANG LIN","PRINCIPAL_INVESTIGATOR",[68,72],{"name":65,"role":69,"phone":70,"phoneExt":41,"email":71},"CONTACT","+886-2-28267288","yllin1020@nycu.edu.tw",{"name":73,"role":69,"phone":41,"phoneExt":41,"email":74},"HSIU-LI LIN","bromine.be12@nycu.edu.tw",[76],{"facility":5,"status":77,"city":78,"state":79,"zip":80,"country":79,"countryCode":81,"cosmosGeoPoint":82,"geoPoint":87,"contacts":41},"RECRUITING","Taipei","Taiwan","112","TW",{"type":83,"coordinates":84},"Point",[85,86],121.52639,25.05306,{"lat":86,"lon":85},{"type":66,"investigatorFullName":89,"investigatorTitle":90,"investigatorAffiliation":5,"oldNameTitle":41,"oldOrganization":41},"Yin-Liang Lin","Associate Professor","100627257",false,"NCT07446283","Motion and EMG Analysis of the Forehand Topspin, Forehand Stroke, and Forehand Attack in Elite Table Tennis Players","Motion and Electromyographic Analysis of the Forehand Topspin Against Topspin, Forehand Topspin Against Backspin, Forehand Stroke, and Forehand Attack in Elite Table Tennis Players","Inclusion Criteria:\n\n* The ages range from 13 to 40 years old\n* Competed in the Chinese Taipei Table Tennis Ranking Tournament or the National Table Tennis Championships within the past three years\n* At least four years of table tennis experience, and train for more than 10 hours per week\n\nExclusion Criteria:\n\n* History of upper limb surgery or fracture\n* History of shoulder dislocation\n* History of spine injury in the last year\n* Systemic autoimmune disease or cancer\n* Pregnancy\n* Any neurological complications",true,"ALL","13 Years","40 Years",{"count":102,"type":103},40,"ESTIMATED","OBSERVATIONAL","This research will analyze and compare the muscle activation levels, muscle recruitment timing, trunk kinematics, and shoulder joint kinematics between the four forehand strokes and between elite table tennis players with and without shoulder injuries, providing insights for daily training and rehabilitation programs to reduce the occurrence of sports injuries.",[107],"Elite Table Tennis Players",[109,110,111,112],"elite table tennis players","shoulder electromyography","trunk kinematics","trunk electromyography","2026-03-30",{"date":115,"type":116},"2026-04-03","ACTUAL",{"date":118,"type":116},"2026-01-02",{"date":120,"type":103},"2026-12-31",{"name":5,"class":6},1]