[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100635450":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":11,"centralContacts":26,"locations":32,"responsibleParty":45,"collaborators":49,"id":54,"slug":55,"hasResults":56,"nctId":57,"briefTitle":58,"officialTitle":59,"acronym":11,"eligibilityCriteria":60,"healthyVolunteers":61,"sex":62,"minAge":63,"maxAge":64,"enrollmentInfo":65,"targetDuration":11,"studyType":68,"phases":69,"briefSummary":71,"conditions":72,"keywords":78,"overallStatus":86,"whyStopped":11,"lastUpdateSubmitDate":87,"lastUpdatePostDateStruct":88,"startDateStruct":91,"completionDateStruct":93,"leadSponsor":95,"locationsCount":96},{"fullName":5,"class":6},"Maimónides Biomedical Research Institute of Córdoba","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Crossfit training","EXPERIMENTAL",null,[13],"Other: CrossFit training",{"label":15,"type":16,"description":17,"interventionNames":11},"Control","NO_INTERVENTION","The control arm will not receive any structured exercise intervention during the study period and will continue with their usual daily school routine. This will allow comparison of changes in physical and psychological outcomes between both groups.",[19],{"type":6,"name":20,"description":21,"armGroupLabels":22,"otherNames":23},"CrossFit training","The experimental arm will receive an 8-week concurrent training intervention based on a CrossFit program adapted for children, with a frequency of two 50-minute sessions per week. Each session will be structured into a warm-up (mobility exercises and games), strength training (technical and functional exercises), metabolic conditioning (METCON), and a cool-down phase. The program will be supervised by qualified professionals to ensure safety and proper execution of the exercises.",[9],[24,25],"Body composition","Psychological Outcomes",[27],{"name":28,"role":29,"phone":30,"phoneExt":11,"email":31},"José Manuel Jurado Castro","CONTACT","+34 957 21 37 00","jose.jurado@imibic.org",[33],{"facility":34,"status":11,"city":35,"state":35,"zip":36,"country":37,"countryCode":38,"cosmosGeoPoint":39,"geoPoint":44,"contacts":11},"IMIBIC","Córdoba","14004","Spain","ES",{"type":40,"coordinates":41},"Point",[42,43],-4.77275,37.89155,{"lat":43,"lon":42},{"type":46,"investigatorFullName":47,"investigatorTitle":48,"investigatorAffiliation":5,"oldNameTitle":11,"oldOrganization":11},"PRINCIPAL_INVESTIGATOR","Jose Manuel Jurado Castro","Principal Investigator",[50,52],{"name":51,"class":6},"Universidad de Córdoba",{"name":53,"class":6},"Escuela Universitaria de Osuna","100635450","effects-of-8-week-crossfit-based-concurrent-training-on-fitness-body-composition-and-psychological-outcomes-in-schoolchildren-100635450",false,"NCT07552844","Effects of 8-Week CrossFit-Based Concurrent Training on Fitness, Body Composition, and Psychological Outcomes in Schoolchildren","Effects of an 8-Week CrossFit-Based Concurrent Training Program on Physical Fitness, Body Composition, and Psychological Outcomes in Schoolchildren: A Randomized Controlled Trial Protocol","Inclusion Criteria:\n\n* Age: 7-11 years.\n* Students enrolled at CEIP Pablo García Baena (Córdoba).\n\nFor the experimental group:\n\n* Availability to attend the Triple XXX Box (Polígono Pedroches, C. los Alfareros, Parcel 119, 14014 Córdoba), where both assessments and training sessions will be conducted.\n* Availability to attend training sessions twice per week for the 8-week intervention period.\n* No participation in extracurricular physical activity prior to the start of the CrossFit program.\n\nFor the control group:\n\nNo participation in extracurricular physical activity. Informed consent signed by parents or legal guardians. No medical, psychological, or behavioral contraindications that would prevent participation in physical activity.\n\nExclusion Criteria:\n\n* Children with musculoskeletal injuries, diseases, or medical, psychological, or behavioral conditions that limit physical activity or interfere with the assessment of outcomes.\n* Inability or anticipated difficulty in regularly attending training sessions.\n* Refusal of parents or legal guardians to provide informed consent.",true,"ALL","7 Years","11 Years",{"count":66,"type":67},30,"ESTIMATED","INTERVENTIONAL",[70],"NA","This study examines the effects of an 8-week CrossFit-based concurrent training program in boys and girls aged 7 to 11 years, comparing an experimental group (n=15) with a control group (n=15). The aim is to assess changes in strength, cardiorespiratory fitness, body composition, and psychological variables such as anxiety, stress, and self-esteem, using field-based physical tests (CMJ, Course Navette, handgrip strength, etc.) and validated questionnaires. The study follows a randomized controlled trial design with pre- and post-intervention assessments. The experimental group will complete two weekly CrossFit sessions adapted for children, while the control group will maintain their usual routine without structured physical training. The hypothesis states that the intervention will significantly improve both physical performance and psychological well-being in the experimental group compared to the control group.",[73,74,75,76,77],"Children","Crossfit","Psychology, Child","Physical Fitness","Body Composition",[79,80,81,82,83,84,76,85],"children","stress","anxiety","exercise training","crossfit","self-esteem","body composition","NOT_YET_RECRUITING","2026-04-25",{"date":89,"type":90},"2026-04-30","ACTUAL",{"date":92,"type":67},"2026-06",{"date":94,"type":67},"2026-07",{"name":5,"class":6},1]