Effects of Beetroot Juice Intake on Performance and Physiological Parameters
- Conditions
- Pulmonary FunctionNutrition, Healthy
- Registration Number
- NCT06073275
- Lead Sponsor
- Campus docent Sant Joan de Déu-Universitat de Barcelona
- Brief Summary
This study was a randomized, double-blind, crossover design for 3 weeks. In the first week, a researcher explained all the experimental procedures to the participants. In the following two weeks, the participants attended the Exercise Physiology laboratory to be assessed in 2 rowing ergometer sessions, separated from each other by a washout period of 7 days, under the same environmental conditions.
In both strictly identical sessions, the participants randomly ingested beetroot juice (BRJ) or placebo (PL) 3 hours before the start of the tests.
- Detailed Description
Three hours after BRJ or PL intake, the participants began the 2,000-meter rowing ergometer test. Before starting (pretest) and at the end of the tests (posttest), blood oxygen saturation, rating of perceived exertion (RPE), and blood lactate measurements were taken. During the rowing ergometer tests, performance parameters and cardiorespiratory variables were recorded.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Male
- Target Recruitment
- 10
- national and/or international level;
- without cardiovascular, respiratory, metabolic, neurological or orthopedic disorders that may affect the performance of the rowing ergometer test;
- no consumption of drugs or medicines;
- no smoking;
- Informed consent to participate in the study signed by all rowers
- Ingestion of nutritional supplements taken in the three months prior to the start of the study;
- no following the guidelines established by the nutrition professional.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Primary Outcome Measures
Name Time Method Cardiorespiratory performance: relative oxygen uptake through study completion, an average of 3 weeks V̇O2max (mL/kg/min)
Rowing performance: meter per stroke through study completion, an average of 3 weeks Meters
Rowing performance: Time trial through study completion, an average of 3 weeks minutes:seconds (mm:ss)
Cardiorespiratory performance: absolute oxygen uptake through study completion, an average of 3 weeks V̇O2max (L/min)
Cardiorespiratory performance: ventilatory efficiency through study completion, an average of 3 weeks slope of Ventilation/Carbon dioxide production
Rowing performance: Mean Power output through study completion, an average of 3 weeks Watts
Metabolic performance: lactate through study completion, an average of 3 weeks mmol/L
- Secondary Outcome Measures
Name Time Method Cardiorespiratory performance: minute ventilation through study completion, an average of 3 weeks minute ventilation in L/min
Rowing performance: strokes through study completion, an average of 3 weeks Mean strokes per minute
Cardiorespiratory performance: Maximum heart rate through study completion, an average of 3 weeks beats/min
Cardiorespiratory performance: Mean heart rate through study completion, an average of 3 weeks beats/min
Saturation through study completion, an average of 3 weeks percentage
Scale of Perceived exertion ratio (RPE) through study completion, an average of 3 weeks Scale from 0 to 10. 0 = rest; 10 = maximum effort
Trial Locations
- Locations (1)
Campus Docent Sant Joan de Déu. Universitat de Barcelona
🇪🇸Sant Boi De Llobregat, Barcelona, Spain
Campus Docent Sant Joan de Déu. Universitat de Barcelona🇪🇸Sant Boi De Llobregat, Barcelona, Spain