Repeated Sprint Performance in Trained AthletesNCT07473193
Beetroot Beverage and Repeated Sprint Power Output During RAST
A study testing Beetroot-based antioxidant beverage in people with Repeated Sprint Performance in Trained Athletes and Exercise Performance, run by Universidad Autonoma de Chihuahua.
Trial summary
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. Read more about this study
- Who is it for?
- Ages 18 to 35 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Repeated Sprint Performance in Trained Athletes, Exercise Performance, Nitrate Supplementation
- What is being tested?
- Beetroot-based antioxidant beverage
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 10 participants
- Where
- No sites listed yet
- Study dates
- 12 Mar 2026to 30 Apr 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 35 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy trained athletes
- Age between 18-35 years
- Regular training ≥3 times/week
- No cardiovascular or metabolic disease
Who cannot join
- Age between 18-35 years
- Regular training ≥3 times/week
- No cardiovascular or metabolic disease
- -
Trial locations and contacts
No sites are listed yet. Contact the study team or a site near you to ask about taking part.
About this study
Official title: "Effects of a Beetroot-Based Functional Beverage on Repeated Sprint Performance: A Randomized, Double-Blind, Placebo-Controlled Crossover Trial"
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.
Ten 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.
Read more
In 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.
Secondary 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).
Read the detailed description
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.
Ten 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.
After 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.
The primary outcome measure is mean power output across all six sprints. Secondary outcomes include:
Fatigue index (percentage decrement across sprints)
Individual sprint power (S1-S6)
Heart rate response
Rating of perceived exertion (Borg 6-20 scale)
VO₂max (assessed at baseline)
Sleep quality measured using the Insomnia Severity Index (ISI)
A 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.
- Conditions
- Repeated Sprint Performance in Trained Athletes, Exercise Performance, Nitrate Supplementation
- Being tested
- Beetroot-based antioxidant beverage
- Keywords
- Beetroot juice
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Beetroot-based antioxidant beverageDietary supplement
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.
| Study group | Role | What they receive |
|---|---|---|
| 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. Receives: Dietary Supplement: Beetroot-based antioxidant beverage |
| 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. Receives: Dietary Supplement: Beetroot-based antioxidant beverage |
What is being measured
The primary outcome is the main question the study is designed to answer.
Mean power output (W) during six maximal 35-m sprints
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.
Measured: Baseline and immediately post-intervention.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Mar 2026
- Study start12 Mar 2026 (estimated)
- Primary completion12 Apr 2026 (estimated)
- Study completion30 Apr 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Repeated Sprint Performance in Trained AthletesStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Model description
- 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).
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 10 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Universidad Autonoma de Chihuahua
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Emmanuel Omar Ponce Dávila, Universidad Autonoma de Chihuahua
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07473193
- Sponsor's protocol ID
- Cl-062-23
- Status last verified
- Mar 2026
- First submitted
- 15 Feb 2026
- Last updated
- 16 Mar 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
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
Study at a glance
From the registry record, last updated by the sponsor on 16 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- "Effects of a Beetroot-Based Functional Beverage on Repeated Sprint Performance: A Randomized, Double-Blind, Placebo-Controlled Crossover Trial"
- ClinicalTrials.gov ID
- NCT07473193
- Acronym / sponsor ID
- Cl-062-23
- Conditions
- Repeated Sprint Performance in Trained Athletes, Exercise Performance, Nitrate Supplementation
- Keywords
- Beetroot juice
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 10 participants (estimated)
- Lead sponsor
- Universidad Autonoma de ChihuahuaUniversity, hospital or other
- Study start
- 12 Mar 2026 (estimated)
- Primary completion
- 12 Apr 2026 (estimated)
- Study completion
- 30 Apr 2026 (estimated)
- First posted
- 16 Mar 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Ten 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.
In 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.
Secondary 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).
Detailed description
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.
Ten 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.
After 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.
The primary outcome measure is mean power output across all six sprints. Secondary outcomes include:
Fatigue index (percentage decrement across sprints)
Individual sprint power (S1-S6)
Heart rate response
Rating of perceived exertion (Borg 6-20 scale)
VO₂max (assessed at baseline)
Sleep quality measured using the Insomnia Severity Index (ISI)
A 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.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 2
- Model description
- 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).
| Arm | Type | Receives |
|---|---|---|
| Beetroot Beverage (BET) | Experimental | Dietary Supplement: Beetroot-based antioxidant beverageParticipants 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. |
| Placebo Beverage (PLA) | Placebo comparator | Dietary Supplement: Beetroot-based antioxidant beverageParticipants 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. |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Healthy trained athletes
- Age between 18-35 years
- Regular training ≥3 times/week
- No cardiovascular or metabolic disease
Key exclusion criteria (4 listed)
- Age between 18-35 years
- Regular training ≥3 times/week
- No cardiovascular or metabolic disease
- -
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Beetroot-based antioxidant beverageParticipants 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. | Dietary supplement | Beetroot Beverage (BET), Placebo Beverage (PLA) |
Primary outcome
Mean power output (W) during six maximal 35-m sprints
Time frame: Baseline and immediately post-intervention.
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.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Mar 2026.
- Results publicationPonce 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
- Individual participant dataSharing planned: No
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Questions about this trial
What is this clinical trial studying?
A study testing Beetroot-based antioxidant beverage in people with Repeated Sprint Performance in Trained Athletes and Exercise Performance, run by Universidad Autonoma de Chihuahua.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 16 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Emmanuel Omar Ponce Dávila, MC (+526142715782, a327789@uach.mx), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Mean power output (W) during six maximal 35-m sprints (time frame: Baseline and immediately post-intervention.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07473193, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Mar 2026.