[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100629324":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":25,"centralContacts":26,"locations":25,"responsibleParty":32,"collaborators":25,"id":36,"slug":37,"hasResults":38,"nctId":39,"briefTitle":40,"officialTitle":41,"acronym":25,"eligibilityCriteria":42,"healthyVolunteers":43,"sex":44,"minAge":45,"maxAge":46,"enrollmentInfo":47,"targetDuration":25,"studyType":50,"phases":51,"briefSummary":53,"conditions":54,"keywords":58,"overallStatus":60,"whyStopped":25,"lastUpdateSubmitDate":61,"lastUpdatePostDateStruct":62,"startDateStruct":65,"completionDateStruct":67,"leadSponsor":69,"locationsCount":25},{"fullName":5,"class":6},"Universidad Autonoma de Chihuahua","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Beetroot Beverage (BET)","EXPERIMENTAL","Participants consumed 200 mL of a beetroot-based antioxidant beverage containing beetroot, cocoa, and green tea extract, providing approximately 6.4 mmol of dietary nitrate. The beverage was ingested 2-3 hours before performing the exercise test.",[13],"Dietary Supplement: Beetroot-based antioxidant beverage",{"label":15,"type":16,"description":17,"interventionNames":18},"Placebo Beverage (PLA)","PLACEBO_COMPARATOR","Participants consumed 200 mL of a placebo beverage matched for color, taste, and texture but without nitrate or active antioxidant compounds. The beverage was ingested 2-3 hours before performing the exercise test.",[13],[20],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"DIETARY_SUPPLEMENT","Beetroot-based antioxidant beverage","Participants consumed 200 mL of a beetroot-based antioxidant beverage containing beetroot, cocoa, and green tea extract, providing approximately 6.4 mmol of dietary nitrate. The beverage was administered 2-3 hours before performing a Running Anaerobic Sprint Test (RAST). The formulation was designed to deliver nitrate and polyphenols with potential ergogenic and antioxidant effects. A 7-day washout period separated crossover conditions.",[9,15],null,[27],{"name":28,"role":29,"phone":30,"phoneExt":25,"email":31},"Emmanuel Omar Ponce Dávila, MC","CONTACT","+526142715782","a327789@uach.mx",{"type":33,"investigatorFullName":34,"investigatorTitle":35,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"PRINCIPAL_INVESTIGATOR","Emmanuel Omar Ponce Dávila","Principal Investigator","100629324","beetroot-beverage-and-repeated-sprint-power-output-during-rast-100629324",false,"NCT07473193","Beetroot Beverage and Repeated Sprint Power Output During RAST","\"Effects of a Beetroot-Based Functional Beverage on Repeated Sprint Performance: A Randomized, Double-Blind, Placebo-Controlled Crossover Trial\"","Inclusion Criteria:\n\n* Healthy trained athletes\n\nAge between 18-35 years\n\nRegular training ≥3 times\u002Fweek\n\nNo cardiovascular or metabolic disease\n\nExclusion Criteria:Healthy trained athletes\n\nAge between 18-35 years\n\nRegular training ≥3 times\u002Fweek\n\nNo cardiovascular or metabolic disease\n\n\\-",true,"MALE","18 Years","35 Years",{"count":48,"type":49},10,"ESTIMATED","INTERVENTIONAL",[52],"NA","This randomized, double-blind, placebo-controlled crossover trial aims to evaluate the acute effects of a nitrate-rich beetroot-based beverage on repeated sprint performance in trained athletes.\n\nTen athletes will complete two experimental conditions in randomized order: beetroot beverage (BET) and placebo (PLA), separated by a 7-day washout period. The beetroot beverage consists of 200 mL of a mixture containing beetroot, cocoa, and green tea, providing approximately 6.4 mmol of nitrate.\n\nIn each condition, participants will perform a Running Anaerobic Sprint Test (RAST), consisting of six maximal 35-meter sprints with 10 seconds of passive recovery between sprints. The primary outcome is mean power output across the six sprints.\n\nSecondary outcomes include fatigue index, sprint-by-sprint power output, heart rate, rating of perceived exertion (Borg 6-20 scale), maximal oxygen uptake (VO₂max), and sleep quality assessed using the Insomnia Severity Index (ISI).",[55,56,57],"Repeated Sprint Performance in Trained Athletes","Exercise Performance","Nitrate Supplementation",[59],"Beetroot juice","NOT_YET_RECRUITING","2026-03-10",{"date":63,"type":64},"2026-03-16","ACTUAL",{"date":66,"type":49},"2026-03-12",{"date":68,"type":49},"2026-04-30",{"name":5,"class":6}]