[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100565033":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":25,"centralContacts":29,"locations":25,"responsibleParty":35,"collaborators":25,"id":39,"slug":25,"hasResults":40,"nctId":41,"briefTitle":42,"officialTitle":43,"acronym":25,"eligibilityCriteria":44,"healthyVolunteers":45,"sex":46,"minAge":47,"maxAge":25,"enrollmentInfo":48,"targetDuration":25,"studyType":51,"phases":52,"briefSummary":54,"conditions":55,"keywords":57,"overallStatus":62,"whyStopped":25,"lastUpdateSubmitDate":63,"lastUpdatePostDateStruct":64,"startDateStruct":67,"completionDateStruct":69,"leadSponsor":71,"locationsCount":25},{"fullName":5,"class":6},"University of Maia","OTHER",[8,15],{"label":9,"type":10,"description":11,"interventionNames":12},"short intervals","EXPERIMENTAL","This group will perform the hiit by doing short intervals",[13,14],"Procedure: Short Intervals HIIT","Procedure: Long intervals HIIT",{"label":16,"type":10,"description":17,"interventionNames":18},"long intervals","This group will perform the hiit by doing long intervals",[13,14],[20,26],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"PROCEDURE","Short Intervals HIIT","Participants will undergo different high-intensity interval training (HIIT) protocols, which involve repeated bouts of exercise at an intensity above 90% of VO2max, followed by recovery periods. The work and rest durations will vary across the protocols to assess the impact on the total time spent at or above 90% of VO2max.",[16,9],null,{"type":21,"name":27,"description":23,"armGroupLabels":28,"otherNames":25},"Long intervals HIIT",[16,9],[30],{"name":31,"role":32,"phone":33,"phoneExt":25,"email":34},"Filipe Maia","CONTACT","22 986 6000","FMAIA.dcd@umaia.pt",{"type":36,"investigatorFullName":37,"investigatorTitle":38,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"PRINCIPAL_INVESTIGATOR","Filipe Silvano Pinto Maia","Principal investigator","100565033",false,"NCT06636916","Time at VO2max During High-Intensity Interval Training","Time at VO2max During High-Intensity Interval Training Manipulating Work and Rest","Inclusion Criteria:\n\n* Middle and long distance track and field athletes\n\nExclusion Criteria:\n\n* Injured athletes",true,"ALL","18 Years",{"count":49,"type":50},10,"ESTIMATED","INTERVENTIONAL",[53],"NA","The project titled \"Time at VO2max During High-Intensity Interval Training Manipulating Work and Rest\" aims to investigate how different high-intensity interval training (HIIT) protocols influence the time athletes spend at or above 90% of their VO2max. By adjusting the work-to-rest ratios in the HIIT formats, the study seeks to determine which configurations maximize the time spent in this high-intensity zone, contributing to more effective endurance training strategies. The findings could help optimize training protocols for athletes targeting improvements in aerobic capacity and performance.",[56],"High Intensity Interval Exercise (HIIE)",[58,59,60,61],"sports","hiit","athletic performance","vo2max","NOT_YET_RECRUITING","2024-10-10",{"date":65,"type":66},"2024-10-15","ACTUAL",{"date":68,"type":50},"2024-11",{"date":70,"type":50},"2025-03",{"name":5,"class":6}]