[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100648436":3},{"organization":4,"armGroups":7,"interventions":25,"overallOfficials":30,"centralContacts":39,"locations":45,"responsibleParty":61,"collaborators":30,"id":65,"slug":66,"hasResults":67,"nctId":68,"briefTitle":69,"officialTitle":70,"acronym":30,"eligibilityCriteria":71,"healthyVolunteers":72,"sex":73,"minAge":74,"maxAge":75,"enrollmentInfo":76,"targetDuration":30,"studyType":79,"phases":80,"briefSummary":82,"conditions":83,"keywords":87,"overallStatus":93,"whyStopped":30,"lastUpdateSubmitDate":94,"lastUpdatePostDateStruct":95,"startDateStruct":98,"completionDateStruct":100,"leadSponsor":102,"locationsCount":103},{"fullName":5,"class":6},"Istanbul Medipol University Hospital","OTHER",[8,14,19],{"label":9,"type":10,"description":11,"interventionNames":12},"Standard Dynamic Warm-Up","ACTIVE_COMPARATOR","Arm Description:\n\nParticipants will complete a standardized dynamic warm-up lasting approximately 10 minutes. The program will include 3 minutes of light jogging, high knees, butt kicks, walking lunges, side shuffles, carioca running, leg swings in the sagittal and frontal planes, and three 10-meter progressive acceleration runs. No PNF stretching will be performed.",[13],"Behavioral: Standard Dynamic Warm-Up",{"label":15,"type":10,"description":16,"interventionNames":17},"Dynamic Warm-Up Plus Classical PNF","Participants will complete the standardized 10-minute dynamic warm-up followed by therapist-administered classical hold-relax proprioceptive neuromuscular facilitation stretching. The PNF protocol will be applied bilaterally to the hamstrings, quadriceps, gastrocnemius, and hip flexors.",[13,18],"Behavioral: Classical Hold-Relax PNF Stretching",{"label":20,"type":21,"description":22,"interventionNames":23},"Dynamic Warm-Up Plus Short-Duration Self-PNF","EXPERIMENTAL","Participants will complete the standardized 10-minute dynamic warm-up followed by a supervised short-duration, self-administered proprioceptive neuromuscular facilitation stretching protocol. The protocol will target the hamstrings, quadriceps, gastrocnemius, and hip flexors bilaterally.",[13,24],"Behavioral: Short-Duration Self-PNF Stretching",[26,31,35],{"type":27,"name":9,"description":28,"armGroupLabels":29,"otherNames":30},"BEHAVIORAL","Participants will perform a standardized dynamic warm-up lasting approximately 10 minutes. The protocol will include 3 minutes of light jogging, high knees, butt kicks, walking lunges, side shuffles, carioca running, sagittal and frontal plane leg swings, and three 10-meter progressive acceleration runs. Each dynamic exercise will be performed for approximately 20 to 30 seconds or over two 20-meter repetitions, as appropriate.",[15,20,9],null,{"type":27,"name":32,"description":33,"armGroupLabels":34,"otherNames":30},"Classical Hold-Relax PNF Stretching","After completing the standardized dynamic warm-up, participants will receive therapist-administered hold-relax PNF stretching for the hamstrings, quadriceps, gastrocnemius, and hip flexors. Each muscle will be moved to the maximum pain-free stretch position. The participant will then perform a 6-second isometric contraction at approximately 60% to 70% of maximal voluntary effort, followed by relaxation and a 20-second therapist-assisted passive stretch at the new range limit. Three repetitions will be performed bilaterally for each muscle group, with approximately 30 seconds of rest between muscle groups. The PNF component will last",[15],{"type":27,"name":36,"description":37,"armGroupLabels":38,"otherNames":30},"Short-Duration Self-PNF Stretching","After completing the standardized dynamic warm-up, participants will perform a supervised short-duration self-PNF protocol targeting the hamstrings, quadriceps, gastrocnemius, and hip flexors. Each repetition will include a 5-second contraction of the opposing muscle group, a 5-second stretch of the target muscle, and a 5-second contraction of the target muscle. Four repetitions will be completed for each muscle group bilaterally, with approximately 20 seconds of rest between muscle groups. The self-PNF component will last approximately 7 to 8 minutes.",[20],[40],{"name":41,"role":42,"phone":43,"phoneExt":30,"email":44},"Mehmet Salih TAN, PhD, : Assistant Professor","CONTACT","+90 546 726 68 76","mstan@medipol.edu.tr",[46],{"facility":47,"status":30,"city":48,"state":30,"zip":49,"country":50,"countryCode":30,"cosmosGeoPoint":51,"geoPoint":56,"contacts":57},"Istanbul Medipol University, South Campus","Istanbul","34000","Turkey (Türkiye)",{"type":52,"coordinates":53},"Point",[54,55],28.94966,41.01384,{"lat":55,"lon":54},[58],{"name":59,"role":42,"phone":60,"phoneExt":30,"email":30},"Mehmet Salih TAN","+905467266876",{"type":62,"investigatorFullName":63,"investigatorTitle":64,"investigatorAffiliation":5,"oldNameTitle":30,"oldOrganization":30},"PRINCIPAL_INVESTIGATOR","salih tan","Assistant Professor, Department of Physiotherapy and Rehabilitation","100648436","acute-effects-of-different-warm-up-protocols-in-amateur-basketball-players-100648436",false,"NCT07722143","Acute Effects of Different Warm-Up Protocols in Amateur Basketball Players","Comparison of the Acute Effects of Different Warm-Up Protocols on Flexibility, Vertical Jump, Agility, and Sprint Performance in Amateur Basketball Players: A Three-Arm Randomized Controlled Trial","Inclusion Criteria:\n\n* Male\n* Aged 15-25 years\n* Licensed amateur basketball player\n* Minimum 2 years of basketball experience\n* Basketball training at least 3 days per week\n* No serious lower-extremity injury within the past 6 months\n* No lower-extremity surgery within the past 6 months\n* No acute pain or movement limitation\n* No neurological, vestibular, cardiovascular, or respiratory disorder preventing exercise\n* No strenuous exercise or official competition within the past 48 hours No alcohol consumption within the past 24 hours No caffeine, energy drinks, pre-workout products, or ergogenic supplements on the testing day\n* Written informed consent\n* Parental consent and participant assent for participants younger than 18 years\n\nExclusion Criteria:\n\n* Acute lower-extremity muscle, tendon, ligament, or bone injury\n* Knee, hip, or ankle surgery within the past 6 months\n* History of major ligament, meniscal, or Achilles tendon injury\n* Lumbar disc herniation, sciatica, peripheral nerve injury, or neurological disorder\n* Vestibular disorder or balance impairment\n* Hypertension, serious cardiovascular disease, or exercise contraindication\n* Physiotherapy or lower-extremity rehabilitation within the past 3 months\n* Regular structured lower-extremity stretching\n* Acute infection, fever, or poor general health on the testing day\n* Inability to complete the intervention or performance tests",true,"MALE","15 Years","25 Years",{"count":77,"type":78},45,"ESTIMATED","INTERVENTIONAL",[81],"NA","Brief Summary This randomized controlled trial will compare the immediate effects of three warm-up protocols on physical performance in male amateur basketball players. A total of 45 licensed basketball players aged 15 to 25 years will be randomly assigned to one of three groups: standard dynamic warm-up, dynamic warm-up followed by classical hold-relax proprioceptive neuromuscular facilitation (PNF) stretching, or dynamic warm-up followed by short-duration self-administered PNF stretching.\n\nThe main outcome will be the change in countermovement jump height. Additional outcomes will include flexibility, knee range of motion, squat jump height, 20-meter sprint time, agility, dynamic balance, and perceived exertion. Measurements will be performed before the assigned warm-up protocol, immediately after the protocol, and 15 minutes after the protocol.\n\nThe study aims to determine whether short-duration self-PNF stretching can improve flexibility while preserving performance more effectively than classical PNF stretching. Each participant will complete the assigned protocol and all assessments during a single study session.",[84,85,86],"Athletic Performance","Flexibility","Physical Fitness",[88,89,90,91,92],"Amateur Basketball Players","Dynamic Warm-Up","Proprioceptive Neuromuscular Facilitation","Sprint Performance","Self-PNF","NOT_YET_RECRUITING","2026-07-20",{"date":96,"type":97},"2026-07-23","ACTUAL",{"date":99,"type":78},"2026-08-05",{"date":101,"type":78},"2026-09-20",{"name":5,"class":6},1]