[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100646812":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":10,"centralContacts":24,"locations":30,"responsibleParty":46,"collaborators":10,"id":48,"slug":49,"hasResults":50,"nctId":51,"briefTitle":52,"officialTitle":53,"acronym":10,"eligibilityCriteria":54,"healthyVolunteers":55,"sex":56,"minAge":57,"maxAge":58,"enrollmentInfo":59,"targetDuration":10,"studyType":62,"phases":10,"briefSummary":63,"conditions":64,"keywords":66,"overallStatus":69,"whyStopped":10,"lastUpdateSubmitDate":70,"lastUpdatePostDateStruct":71,"startDateStruct":74,"completionDateStruct":76,"leadSponsor":78,"locationsCount":79},{"fullName":5,"class":6},"National Yang Ming Chiao Tung University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Poor shoulder motor control",null,"During shoulder medial rotation up to 60° in supine position, the scapula forward tilts or elevation occurs, difficulties in breathing, performing difficulties, unable to perform 60° medial rotation, glenohumeral anterior translation, fatigue, the need of external feedback and external support.",[13],"Behavioral: Upper Extremity Muscle Fatigue Protocol",{"label":15,"type":10,"description":16,"interventionNames":17},"Good shoulder motor control","During shoulder medial rotation up to 60° in supine position, no scapula and glenohumeral compensation, easy to breathing and perform 60° medial rotation without external feedback and external support.",[13],[19],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":10},"BEHAVIORAL","Upper Extremity Muscle Fatigue Protocol","The subject performed upper extremity D2 diagonal exercise with Thera-band at kneeling position to simulate the arm movement of a volleyball spike. The movement is paced by a metronome at one beat per second, with one movement per beat. If participants could not keep up or become too fatigued, they are allowed to rest for 15 seconds before continuing.\n\nThe subject was defined as fatigued, and the fatigue activity was stopped, only when all three of the following cumulative conditions were met:\n\n1. Until the number of repetitions in that set was less than 50% of the repetitions performed in the first set.\n2. Using the Rating of Perceived Exertion (RPE) on a 6-20 scale, until the subject's RPE was greater than or equal to 15.\n3. If this maximum strength showed a decrease of 25% or more compared to the maximum strength measured before the fatigue activity.",[15,9],[25],{"name":26,"role":27,"phone":28,"phoneExt":10,"email":29},"Chi-Chong Lio","CONTACT","0965101633","liochichonggg@gmail.com",[31],{"facility":5,"status":10,"city":32,"state":10,"zip":33,"country":34,"countryCode":35,"cosmosGeoPoint":36,"geoPoint":41,"contacts":42},"Taipei","112","Taiwan","TW",{"type":37,"coordinates":38},"Point",[39,40],121.52639,25.05306,{"lat":40,"lon":39},[43],{"name":5,"role":27,"phone":44,"phoneExt":10,"email":45},"(02)2826-7049","tshuang@nycu.edu.tw",{"type":47,"investigatorFullName":10,"investigatorTitle":10,"investigatorAffiliation":10,"oldNameTitle":10,"oldOrganization":10},"SPONSOR","100646812","alterations-in-spiking-following-muscle-fatigue-in-volleyball-players-100646812",false,"NCT07687550","Alterations in Spiking Following Muscle Fatigue in Volleyball Players","Alterations in Spiking Kinematic, Muscle Activation, and Subacromial Structures Following Muscle Fatigue in Volleyball Players","Inclusion Criteria:\n\n* Between 18 and 35 years old\n* At least 2 consecutive years of volleyball experience\n* Involved in volleyball practice or game for at least 4 hours per week\n* Able to perform a cross-body spike with 3-step\n\nExclusion Criteria:\n\n* A history of major shoulder or spinal injury or surgery\n* Experiencing shoulder pain (VAS ≥ 3\u002F10) in the last 6 months",true,"ALL","18 Years","35 Years",{"count":60,"type":61},35,"ESTIMATED","OBSERVATIONAL","This study aims (1)to investigate the effects of repetitive functional overhead movements targeting shoulder and scapular muscles on glenohumeral and scapular kinematics and muscle activation during the arm cocking and acceleration of spiking, and changes in subacromial structures in healthy recreational volleyball players; (2) to compare these fatigue-related changes between athletes with good and poor shoulder motor control.",[65],"Fatigue",[65,67,68],"Athlete","Volleyball","NOT_YET_RECRUITING","2026-07-01",{"date":72,"type":73},"2026-07-07","ACTUAL",{"date":75,"type":61},"2026-07",{"date":77,"type":61},"2027-01",{"name":5,"class":6},1]