Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2026-03-25'}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'TRIPLE', 'whoMasked': ['PARTICIPANT', 'INVESTIGATOR', 'OUTCOMES_ASSESSOR'], 'maskingDescription': 'The study was conducted under a double-blind design. Both participants and investigators were unaware of the beverage allocation (beetroot-based beverage or placebo). The beverages were matched in volume (200 mL), color, taste, and texture. Allocation was performed by an independent researcher not involved in data collection or analysis. Outcome assessors and data analysts were blinded to treatment order until completion of statistical analyses.'}, 'primaryPurpose': 'OTHER', 'interventionModel': 'CROSSOVER', 'interventionModelDescription': 'Randomized, double-blind, placebo-controlled crossover design. Participants completed two experimental trials (beetroot-based beverage and placebo) separated by a 7-day washout period. The order of interventions was randomized. Each participant served as his own control. Performance outcomes were assessed using the Running Anaerobic Sprint Test (RAST).'}, 'enrollmentInfo': {'type': 'ESTIMATED', 'count': 10}}, 'statusModule': {'overallStatus': 'NOT_YET_RECRUITING', 'startDateStruct': {'date': '2026-03-12', 'type': 'ESTIMATED'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2026-03', 'completionDateStruct': {'date': '2026-04-30', 'type': 'ESTIMATED'}, 'lastUpdateSubmitDate': '2026-03-10', 'studyFirstSubmitDate': '2026-02-15', 'studyFirstSubmitQcDate': '2026-03-10', 'lastUpdatePostDateStruct': {'date': '2026-03-16', 'type': 'ACTUAL'}, 'studyFirstPostDateStruct': {'date': '2026-03-16', 'type': 'ACTUAL'}, 'primaryCompletionDateStruct': {'date': '2026-04-12', 'type': 'ESTIMATED'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Mean power output (W) during six maximal 35-m sprints', 'timeFrame': 'Baseline and immediately post-intervention.', 'description': 'Mean power output will be calculated from six maximal 35-m sprint efforts separated by standardized recovery intervals. Sprint time will be recorded and converted to power output (W). The mean value across all six sprints will be used as the outcome measure.'}]}, 'oversightModule': {'oversightHasDmc': True, 'isFdaRegulatedDrug': False, 'isFdaRegulatedDevice': False}, 'conditionsModule': {'keywords': ['Beetroot juice'], 'conditions': ['Repeated Sprint Performance in Trained Athletes', 'Exercise Performance', 'Nitrate Supplementation']}, 'referencesModule': {'references': [{'type': 'RESULT', 'citation': 'Ponce Dávila, E. O., Neder Suárez, D., Muñoz Daw, M. de J., Carrasco Legleu, C. E., & Benítez Hernández, Z. P. (2024). Diseño y análisis de una bebida deportiva a base de betabel. Revista Mexicana De Ciencias De La Cultura Física, 3(7), 1-10. https://doi.org/10.54167/rmccf.v3i7.1370'}]}, 'descriptionModule': {'briefSummary': '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).', 'detailedDescription': 'This randomized, double-blind, placebo-controlled crossover trial is designed to investigate the acute effects of a nitrate-rich beetroot-based beverage on repeated sprint performance in trained athletes.\n\nTen athletes will participate in two experimental sessions in randomized order: beetroot beverage (BET) and placebo (PLA). Randomization will determine the sequence of beverage administration. Participants and investigators will be blinded to treatment allocation.\n\nAfter beverage ingestion, participants will perform a standardized warm-up followed by the Running Anaerobic Sprint Test (RAST), consisting of six maximal 35-meter sprints with 10 seconds of passive recovery between sprints. Sprint time will be recorded using electronic timing, and power output will be calculated using body mass and sprint time.\n\nThe primary outcome measure is mean power output across all six sprints. Secondary outcomes include:\n\nFatigue index (percentage decrement across sprints)\n\nIndividual sprint power (S1-S6)\n\nHeart rate response\n\nRating of perceived exertion (Borg 6-20 scale)\n\nVO₂max (assessed at baseline)\n\nSleep quality measured using the Insomnia Severity Index (ISI)\n\nA linear mixed-effects model will be used to analyze repeated sprint performance, including subject as a random intercept and treatment, sprint, and their interaction as fixed effects. Non-parametric tests will be applied when assumptions of normality are not met. Statistical significance will be set at p ≤ 0.05.'}, 'eligibilityModule': {'sex': 'MALE', 'stdAges': ['ADULT'], 'maximumAge': '35 Years', 'minimumAge': '18 Years', 'healthyVolunteers': True, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* Healthy trained athletes\n\nAge between 18-35 years\n\nRegular training ≥3 times/week\n\nNo cardiovascular or metabolic disease\n\nExclusion Criteria:Healthy trained athletes\n\nAge between 18-35 years\n\nRegular training ≥3 times/week\n\nNo cardiovascular or metabolic disease\n\n\\-'}, 'identificationModule': {'nctId': 'NCT07473193', 'briefTitle': 'Beetroot Beverage and Repeated Sprint Power Output During RAST', 'organization': {'class': 'OTHER', 'fullName': 'Universidad Autonoma de Chihuahua'}, 'officialTitle': '"Effects of a Beetroot-Based Functional Beverage on Repeated Sprint Performance: A Randomized, Double-Blind, Placebo-Controlled Crossover Trial"', 'orgStudyIdInfo': {'id': 'Cl-062-23'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': 'Beetroot Beverage (BET)', 'description': '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.', 'interventionNames': ['Dietary Supplement: Beetroot-based antioxidant beverage']}, {'type': 'PLACEBO_COMPARATOR', 'label': 'Placebo Beverage (PLA)', 'description': '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.', 'interventionNames': ['Dietary Supplement: Beetroot-based antioxidant beverage']}], 'interventions': [{'name': 'Beetroot-based antioxidant beverage', 'type': 'DIETARY_SUPPLEMENT', 'description': '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.', 'armGroupLabels': ['Beetroot Beverage (BET)', 'Placebo Beverage (PLA)']}]}, 'contactsLocationsModule': {'centralContacts': [{'name': 'Emmanuel Omar Ponce Dávila, MC', 'role': 'CONTACT', 'email': 'a327789@uach.mx', 'phone': '+526142715782'}]}, 'ipdSharingStatementModule': {'ipdSharing': 'NO'}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Universidad Autonoma de Chihuahua', 'class': 'OTHER'}, 'responsibleParty': {'type': 'PRINCIPAL_INVESTIGATOR', 'investigatorTitle': 'Principal Investigator', 'investigatorFullName': 'Emmanuel Omar Ponce Dávila', 'investigatorAffiliation': 'Universidad Autonoma de Chihuahua'}}}}