Athletic PerformanceNCT07106489
Effect of Beetroot Nitrates on Different Physical Skills in Colombian Rugby Athletes
A study testing 40 meters sprint, Fitness test by bronco test and Maximal strength in people with Athletic Performance, run by Universidad Nacional de Colombia at 1 site in Colombia.
Trial summary
Beetroot is a source of nitrates, which have demonstrated various positive effects in sports, with little evidence in intermittent sports such as ball sports (including rugby). Therefore, the study's hypothesis is that it may also have an effect in these sports. Read more about this study
- Who is it for?
- Ages 18 to 40 years
- Conditions the study is for
- Athletic Performance
- What is being tested?
- 40 meters sprint, Fitness test by bronco test and Maximal strength
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 10 participants
- Where
- 1 siteColombia
- Study dates
- 1 Feb 2025to 13 Mar 2025
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 40 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- Belong to one of the two Rugby Clubs invited to participate
- Legal age
- Have trained/played rugby for more than 6 months.
Who cannot join
- Have had a sports injury in the last 6 months or during the study
- Use of nutritional supplements during the study.
- Use of mouthwash during the study.
- Have health conditions that require specific medical treatment.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Effect of Beetroot Extract Supplementation on the Athletic Performance of Trained Rugby Athletes
Beetroot is a source of nitrates, which have demonstrated various positive effects in sports, with little evidence in intermittent sports such as ball sports (including rugby). Therefore, the study's hypothesis is that it may also have an effect in these sports. For this purpose, a beetroot extract was used, a product approved by the Colombian institution in charge of product approval and registration in Colombia, the National Institute for Food and Drug Surveillance (INVIMA). This was done to determine whether it has any effect on various physical abilities required for rugby, such as speed, acceleration, strength, and fatigue perception.
Read the detailed description
Currently, nitrates (from beet juices or extracts) have gained relevance due to their vasodilatory effect, which has contributed to improving athletic performance. Their use has been studied mainly in continuous sports such as swimming, cycling, athletics, etc. However, research in intermittent sports (such as ball or combat sports) is limited and inconclusive, so further research is needed on their use and effect in these sports. Therefore, the study seeks to investigate the effect of administering beet extract for three consecutive days in rugby athletes, evaluating its effect on various physical capacities required for the specific sport, such as acceleration, speed, strength, and fitness. Due to the small number of participants, a randomization process is not possible. A representative sample of 44 is required, but only 10 are interested in participating. Therefore, the sample will be selected based on the number of people willing to participate (convenience sampling) and meeting the defined inclusion and exclusion criteria. Each athlete is subsequently characterized and evaluated by the nutritionist, who provides instructions on how to avoid consuming foods or substances that could affect the study. They will be provided with the necessary substrates three days before the physical tests, with one group receiving the beetroot substrate and the other a placebo. The following week, the groups will be double-blinded. The physical tests will be performed by a professional physiotherapist, who will apply the test protocol and use a Borg scale to assess perceived exertion. Finally, a descriptive and exploratory analysis will be performed on the collected data, using univariate tests for the mean (Student's t-test) or Wilcoxon tests, depending on the type of variable (continuous or ordinal), with a 95% confidence level. To measure the magnitude of the treatment effect on each measured variable, Cohen's d statistic will be used for those variables that required a t-test.
- Conditions
- Athletic Performance
- Being tested
- beetroot juice - Placebo, 40 meters sprint, Fitness test by bronco test, Maximal strength, Borg scale
- Keywords
- Beetroot, Nitrates, Sports, Sports Nutrition Science
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
beetroot juice - PlaceboOther
Participants receive the beetroot and placebo in the form of waffles to ensure the study is blinded, as the 6 mmol of nitrates used require a high concentration of beetroot, which is masked by the waffle ingredients and food coloring.
40 meters sprintOther
The participant performs a race at maximum speed with two attempts, times are taken at 10, 30 and 40 meters, to evaluate acceleration and speed, the attempt with the shortest times is the one taken for the research.
Fitness test by bronco testOther
The participant runs a distance of 20, 40, and 60 meters, back and forth, 5 times at maximum speed. The variable to be measured is the total time taken to complete the test.
Maximal strengthOther
Each participant performs squats and bench press to evaluate lower-body and upper-body maximal strength, thus identifying their maximum strength taken per kilogram lifted.
Borg scaleOther
At the end of the tests, each participant is asked to evaluate their perception of fatigue by giving a number between 1 and 10, with 1 being the lowest level of fatigue and 10 being the highest.
| Study group | Role | What they receive |
|---|---|---|
| Placebo-Beetroot | Other | The group receives the placebo the first week and the following week they receive the beetroot Receives: Other: beetroot juice - Placebo; Other: 40 meters sprint; Other: Fitness test by bronco test; Other: Maximal strength; Other: Borg scale |
| Beetroot-Placebo | Other | The group receives the beetroot the first week and the following week receives the placebo. Receives: Other: beetroot juice - Placebo; Other: 40 meters sprint; Other: Fitness test by bronco test; Other: Maximal strength; Other: Borg scale |
What is being measured
The primary outcome is the main question the study is designed to answer.
Results Obtained in the Physical Tests to Evaluate Impact on Acceleration
Physical tests are performed over two different weeks. Initially, the 40-meter sprint test is performed with two attempts, with the attempt with the shortest execution time being considered. Distances from 0 to 10 meters are used to evaluate acceleration in meters per second squared (m/s^2)
Measured: First and second physical tests weeks
Speed Results Over Distance From 0 to 30 Meters in 40 Meters Sprint Test
In the 40-meter speed test, the time taken to travel from the start to the 30 meters is measured in meters per second (m/s)
Measured: First and second physical tests weeks
Maximum Speed Results With the Distance of 30 to 40 Meters in the 40-meter Sprint Test
In the 40-meter sprint test, the time to cover from a distance of 30 meters to 40 meters is measured in meters per second (m/s)
Measured: First and second physical tests weeks
Speed Given by Distance From 0 to 40 Meters Sprint
Time to cover the distance from 0 to 40 meters sprint at maximum speed in meters per second (m/s)
Measured: First and second physical tests weeks
Fitness Results From the Bronco Test
Fitness is assessed by the time it takes to cover the 1.2 km Bronco test segmented into distances of 20, 40, and 60 meters, which are covered 5 times.
Measured: First and second physical tests weeks
Maximum Strength in the Lower-body Given by Squat
Squats are performed technically until reaching 1 repetition maximum (1RM) meeting technical requirements.
Measured: First and second physical tests weeks
Maximum Upper-body Strength Given by Bench Press Test
Maximum weight lifted in 1 maximum repetition in a technically correct manner in the bench press exercise
Measured: First and second physical tests weeks
Perception of Fatigue Given by the Borg Scale
According to a score of 1 to 10, with 1 being the lowest and 10 being the highest level of fatigue, participants evaluated their perception at the end of the physical tests.
Measured: First and second weeks at the end of the physical tests
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Aug 2025
- Study start1 Feb 2025
- Primary completion5 Mar 2025
- Study completion13 Mar 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (13)Papers the sponsor has linked to this study.
- Other trials for Athletic PerformanceStudies 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
- Non-randomised
- Intervention model
- Crossover
- Model description
- The research was a quasi-experimental study using a non-randomized controlled crossover trial, minimizing the effects associated with individual athlete patterns, with each participant acting as their own control. Participants were double-blinded, dividing them into two groups. The researcher prepared placebo and beetroot waffles.
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 10 participants (actual)
Sponsor and investigators
- Lead sponsor
- Universidad Nacional de Colombia
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ligia Stella Guerrero Orjuela, Universidad Nacional de Colombia
- Investigators
- Ligia S Guerrero, PhD. MSc. ND, Study director, Universidad Nacional de Colombia
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07106489
- Sponsor's protocol ID
- 65891
- Status last verified
- Jun 2025
- First submitted
- 22 Jul 2025
- Last updated
- 12 Dec 2025
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: The study is expected to be written and submitted to peer-reviewed, indexed journals in areas such as nutrition, exercise physiology, and public health.
Publications
Thompson C, Vanhatalo A, Jell H, Fulford J, Carter J, Nyman L, Bailey SJ, Jones AM. Dietary nitrate supplementation improves sprint and high-intensity intermittent running performance. Nitric Oxide. 2016 Dec 30;61:55-61. doi: 10.1016/j.niox.2016.10.006. Epub 2016 Oct 21.
PubMed 27777094Tan R, Pennell A, Karl ST, Cass JK, Go K, Clifford T, Bailey SJ, Perkins Storm C. Effects of Dietary Nitrate Supplementation on Back Squat and Bench Press Performance: A Systematic Review and Meta-Analysis. Nutrients. 2023 May 27;15(11):2493. doi: 10.3390/nu15112493.
PubMed 37299456Tan R, Cano L, Lago-Rodriguez A, Dominguez R. The Effects of Dietary Nitrate Supplementation on Explosive Exercise Performance: A Systematic Review. Int J Environ Res Public Health. 2022 Jan 11;19(2):762. doi: 10.3390/ijerph19020762.
PubMed 35055584Senefeld JW, Wiggins CC, Regimbal RJ, Dominelli PB, Baker SE, Joyner MJ. Ergogenic Effect of Nitrate Supplementation: A Systematic Review and Meta-analysis. Med Sci Sports Exerc. 2020 Oct;52(10):2250-2261. doi: 10.1249/MSS.0000000000002363.
PubMed 32936597Salem A, Ammar A, Kerkeni M, Boujelbane MA, Uyar AM, Kobel LM, Selvaraj S, Zare R, Heinrich KM, Jahrami H, Tounsi S, Zmijewski P, Schollhorn WI, Trabelsi K, Chtourou H. Short-Term Beetroot Juice Supplementation Enhances Strength, Reduces Fatigue, and Promotes Recovery in Physically Active Individuals: A Randomized, Double-Blind, Crossover Trial. Nutrients. 2025 May 19;17(10):1720. doi: 10.3390/nu17101720.
PubMed 40431460Murphy MJ, Rushing BR, Sumner SJ, Hackney AC. Dietary Supplements for Athletic Performance in Women: Beta-Alanine, Caffeine, and Nitrate. Int J Sport Nutr Exerc Metab. 2022 Feb 23;32(4):311-323. doi: 10.1123/ijsnem.2021-0176. Print 2022 Jul 1.
PubMed 35196646Miraftabi H, Avazpoor Z, Berjisian E, Sarshin A, Rezaei S, Dominguez R, Reale R, Franchini E, Samanipour MH, Koozehchian MS, Willems MET, Rafiei R, Naderi A. Effects of Beetroot Juice Supplementation on Cognitive Function, Aerobic and Anaerobic Performances of Trained Male Taekwondo Athletes: A Pilot Study. Int J Environ Res Public Health. 2021 Sep 28;18(19):10202. doi: 10.3390/ijerph181910202.
PubMed 34639501Lopez-Samanes A, Ramos-Alvarez JJ, Miguel-Tobal F, Gaos S, Jodra P, Arranz-Munoz R, Dominguez R, Montoya JJ. Influence of Beetroot Juice Ingestion on Neuromuscular Performance on Semi-Professional Female Rugby Players: A Randomized, Double-Blind, Placebo-Controlled Study. Foods. 2022 Nov 12;11(22):3614. doi: 10.3390/foods11223614.
PubMed 36429210Jones AM, Vanhatalo A, Seals DR, Rossman MJ, Piknova B, Jonvik KL. Dietary Nitrate and Nitric Oxide Metabolism: Mouth, Circulation, Skeletal Muscle, and Exercise Performance. Med Sci Sports Exerc. 2021 Feb 1;53(2):280-294. doi: 10.1249/MSS.0000000000002470.
PubMed 32735111Esen O, Karayigit R, Peart DJ. Acute beetroot juice supplementation did not enhance intermittent running performance in trained rugby players. Eur J Sport Sci. 2023 Dec;23(12):2321-2328. doi: 10.1080/17461391.2023.2230942. Epub 2023 Jul 13.
PubMed 37394944d'Unienville NMA, Blake HT, Coates AM, Hill AM, Nelson MJ, Buckley JD. Effect of food sources of nitrate, polyphenols, L-arginine and L-citrulline on endurance exercise performance: a systematic review and meta-analysis of randomised controlled trials. J Int Soc Sports Nutr. 2021 Dec 29;18(1):76. doi: 10.1186/s12970-021-00472-y.
PubMed 34965876Dominguez R, Mate-Munoz JL, Cuenca E, Garcia-Fernandez P, Mata-Ordonez F, Lozano-Estevan MC, Veiga-Herreros P, da Silva SF, Garnacho-Castano MV. Effects of beetroot juice supplementation on intermittent high-intensity exercise efforts. J Int Soc Sports Nutr. 2018 Jan 5;15:2. doi: 10.1186/s12970-017-0204-9. eCollection 2018.
PubMed 29311764Delleli S, Ouergui I, Messaoudi H, Trabelsi K, Glenn JM, Ammar A, Chtourou H. Does Beetroot Supplementation Improve Performance in Combat Sports Athletes? A Systematic Review of Randomized Controlled Trials. Nutrients. 2023 Jan 12;15(2):398. doi: 10.3390/nu15020398.
PubMed 36678270
Study at a glance
From the registry record, last updated by the sponsor on 12 Dec 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Beetroot Extract Supplementation on the Athletic Performance of Trained Rugby Athletes
- ClinicalTrials.gov ID
- NCT07106489
- Acronym / sponsor ID
- 65891
- Conditions
- Athletic Performance
- Keywords
- Beetroot, Nitrates, Sports, Sports Nutrition Science
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 10 participants (actual)
- Lead sponsor
- Universidad Nacional de ColombiaUniversity, hospital or other
- Study start
- 1 Feb 2025 (actual)
- Primary completion
- 5 Mar 2025 (actual)
- Study completion
- 13 Mar 2025 (actual)
- First posted
- 6 Aug 2025 (actual)
- Results
- Posted 12 Dec 2025
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Beetroot is a source of nitrates, which have demonstrated various positive effects in sports, with little evidence in intermittent sports such as ball sports (including rugby). Therefore, the study's hypothesis is that it may also have an effect in these sports. For this purpose, a beetroot extract was used, a product approved by the Colombian institution in charge of product approval and registration in Colombia, the National Institute for Food and Drug Surveillance (INVIMA). This was done to determine whether it has any effect on various physical abilities required for rugby, such as speed, acceleration, strength, and fatigue perception.
Detailed description
Currently, nitrates (from beet juices or extracts) have gained relevance due to their vasodilatory effect, which has contributed to improving athletic performance. Their use has been studied mainly in continuous sports such as swimming, cycling, athletics, etc. However, research in intermittent sports (such as ball or combat sports) is limited and inconclusive, so further research is needed on their use and effect in these sports. Therefore, the study seeks to investigate the effect of administering beet extract for three consecutive days in rugby athletes, evaluating its effect on various physical capacities required for the specific sport, such as acceleration, speed, strength, and fitness. Due to the small number of participants, a randomization process is not possible. A representative sample of 44 is required, but only 10 are interested in participating. Therefore, the sample will be selected based on the number of people willing to participate (convenience sampling) and meeting the defined inclusion and exclusion criteria. Each athlete is subsequently characterized and evaluated by the nutritionist, who provides instructions on how to avoid consuming foods or substances that could affect the study. They will be provided with the necessary substrates three days before the physical tests, with one group receiving the beetroot substrate and the other a placebo. The following week, the groups will be double-blinded. The physical tests will be performed by a professional physiotherapist, who will apply the test protocol and use a Borg scale to assess perceived exertion. Finally, a descriptive and exploratory analysis will be performed on the collected data, using univariate tests for the mean (Student's t-test) or Wilcoxon tests, depending on the type of variable (continuous or ordinal), with a 95% confidence level. To measure the magnitude of the treatment effect on each measured variable, Cohen's d statistic will be used for those variables that required a t-test.
Study design
- Primary purpose
- Other
- Allocation
- Non-randomised
- Intervention model
- Crossover
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
- Model description
- The research was a quasi-experimental study using a non-randomized controlled crossover trial, minimizing the effects associated with individual athlete patterns, with each participant acting as their own control. Participants were double-blinded, dividing them into two groups. The researcher prepared placebo and beetroot waffles.
| Arm | Type | Receives |
|---|---|---|
| Placebo-Beetroot | Other | Other: beetroot juice - Placebo, Other: 40 meters sprint, Other: Fitness test by bronco test, Other: Maximal strength, Other: Borg scaleThe group receives the placebo the first week and the following week they receive the beetroot |
| Beetroot-Placebo | Other | Other: beetroot juice - Placebo, Other: 40 meters sprint, Other: Fitness test by bronco test, Other: Maximal strength, Other: Borg scaleThe group receives the beetroot the first week and the following week receives the placebo. |
Who may qualify
- Ages
- 18 to 40 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Belong to one of the two Rugby Clubs invited to participate
- Legal age
- Have trained/played rugby for more than 6 months.
Key exclusion criteria (4 listed)
- Have had a sports injury in the last 6 months or during the study
- Use of nutritional supplements during the study.
- Use of mouthwash during the study.
- Have health conditions that require specific medical treatment.
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 juice - PlaceboParticipants receive the beetroot and placebo in the form of waffles to ensure the study is blinded, as the 6 mmol of nitrates used require a high concentration of beetroot, which is masked by the waffle ingredients and food coloring. | Other | Beetroot-Placebo, Placebo-Beetroot |
| 40 meters sprintThe participant performs a race at maximum speed with two attempts, times are taken at 10, 30 and 40 meters, to evaluate acceleration and speed, the attempt with the shortest times is the one taken for the research. | Other | Beetroot-Placebo, Placebo-Beetroot |
| Fitness test by bronco testThe participant runs a distance of 20, 40, and 60 meters, back and forth, 5 times at maximum speed. The variable to be measured is the total time taken to complete the test. | Other | Beetroot-Placebo, Placebo-Beetroot |
| Maximal strengthEach participant performs squats and bench press to evaluate lower-body and upper-body maximal strength, thus identifying their maximum strength taken per kilogram lifted. | Other | Beetroot-Placebo, Placebo-Beetroot |
| Borg scaleAt the end of the tests, each participant is asked to evaluate their perception of fatigue by giving a number between 1 and 10, with 1 being the lowest level of fatigue and 10 being the highest. | Other | Beetroot-Placebo, Placebo-Beetroot |
Primary outcome
Results Obtained in the Physical Tests to Evaluate Impact on Acceleration
Time frame: First and second physical tests weeks
Physical tests are performed over two different weeks. Initially, the 40-meter sprint test is performed with two attempts, with the attempt with the shortest execution time being considered. Distances from 0 to 10 meters are used to evaluate acceleration in meters per second squared (m/s^2)
Speed Results Over Distance From 0 to 30 Meters in 40 Meters Sprint Test
Time frame: First and second physical tests weeks
In the 40-meter speed test, the time taken to travel from the start to the 30 meters is measured in meters per second (m/s)
Maximum Speed Results With the Distance of 30 to 40 Meters in the 40-meter Sprint Test
Time frame: First and second physical tests weeks
In the 40-meter sprint test, the time to cover from a distance of 30 meters to 40 meters is measured in meters per second (m/s)
Speed Given by Distance From 0 to 40 Meters Sprint
Time frame: First and second physical tests weeks
Time to cover the distance from 0 to 40 meters sprint at maximum speed in meters per second (m/s)
Fitness Results From the Bronco Test
Time frame: First and second physical tests weeks
Fitness is assessed by the time it takes to cover the 1.2 km Bronco test segmented into distances of 20, 40, and 60 meters, which are covered 5 times.
Maximum Strength in the Lower-body Given by Squat
Time frame: First and second physical tests weeks
Squats are performed technically until reaching 1 repetition maximum (1RM) meeting technical requirements.
Maximum Upper-body Strength Given by Bench Press Test
Time frame: First and second physical tests weeks
Maximum weight lifted in 1 maximum repetition in a technically correct manner in the bench press exercise
Perception of Fatigue Given by the Borg Scale
Time frame: First and second weeks at the end of the physical tests
According to a score of 1 to 10, with 1 being the lowest and 10 being the highest level of fatigue, participants evaluated their perception at the end of the physical tests.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Dec 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 27777094Thompson C, Vanhatalo A, Jell H, Fulford J, Carter J, Nyman L, Bailey SJ, Jones AM. Dietary nitrate supplementation improves sprint and high-intensity intermittent running performance. Nitric Oxide. 2016 Dec 30;61:55-61. doi: 10.1016/j.niox.2016.10.006. Epub 2016 Oct 21.
- Background: PubMed 37299456Tan R, Pennell A, Karl ST, Cass JK, Go K, Clifford T, Bailey SJ, Perkins Storm C. Effects of Dietary Nitrate Supplementation on Back Squat and Bench Press Performance: A Systematic Review and Meta-Analysis. Nutrients. 2023 May 27;15(11):2493. doi: 10.3390/nu15112493.
- Background: PubMed 35055584Tan R, Cano L, Lago-Rodriguez A, Dominguez R. The Effects of Dietary Nitrate Supplementation on Explosive Exercise Performance: A Systematic Review. Int J Environ Res Public Health. 2022 Jan 11;19(2):762. doi: 10.3390/ijerph19020762.
- Background: PubMed 32936597Senefeld JW, Wiggins CC, Regimbal RJ, Dominelli PB, Baker SE, Joyner MJ. Ergogenic Effect of Nitrate Supplementation: A Systematic Review and Meta-analysis. Med Sci Sports Exerc. 2020 Oct;52(10):2250-2261. doi: 10.1249/MSS.0000000000002363.
- Background: PubMed 40431460Salem A, Ammar A, Kerkeni M, Boujelbane MA, Uyar AM, Kobel LM, Selvaraj S, Zare R, Heinrich KM, Jahrami H, Tounsi S, Zmijewski P, Schollhorn WI, Trabelsi K, Chtourou H. Short-Term Beetroot Juice Supplementation Enhances Strength, Reduces Fatigue, and Promotes Recovery in Physically Active Individuals: A Randomized, Double-Blind, Crossover Trial. Nutrients. 2025 May 19;17(10):1720. doi: 10.3390/nu17101720.
- Background: PubMed 35196646Murphy MJ, Rushing BR, Sumner SJ, Hackney AC. Dietary Supplements for Athletic Performance in Women: Beta-Alanine, Caffeine, and Nitrate. Int J Sport Nutr Exerc Metab. 2022 Feb 23;32(4):311-323. doi: 10.1123/ijsnem.2021-0176. Print 2022 Jul 1.
- Background: PubMed 34639501Miraftabi H, Avazpoor Z, Berjisian E, Sarshin A, Rezaei S, Dominguez R, Reale R, Franchini E, Samanipour MH, Koozehchian MS, Willems MET, Rafiei R, Naderi A. Effects of Beetroot Juice Supplementation on Cognitive Function, Aerobic and Anaerobic Performances of Trained Male Taekwondo Athletes: A Pilot Study. Int J Environ Res Public Health. 2021 Sep 28;18(19):10202. doi: 10.3390/ijerph181910202.
- Background: PubMed 36429210Lopez-Samanes A, Ramos-Alvarez JJ, Miguel-Tobal F, Gaos S, Jodra P, Arranz-Munoz R, Dominguez R, Montoya JJ. Influence of Beetroot Juice Ingestion on Neuromuscular Performance on Semi-Professional Female Rugby Players: A Randomized, Double-Blind, Placebo-Controlled Study. Foods. 2022 Nov 12;11(22):3614. doi: 10.3390/foods11223614.
- Background: PubMed 32735111Jones AM, Vanhatalo A, Seals DR, Rossman MJ, Piknova B, Jonvik KL. Dietary Nitrate and Nitric Oxide Metabolism: Mouth, Circulation, Skeletal Muscle, and Exercise Performance. Med Sci Sports Exerc. 2021 Feb 1;53(2):280-294. doi: 10.1249/MSS.0000000000002470.
- Background: PubMed 37394944Esen O, Karayigit R, Peart DJ. Acute beetroot juice supplementation did not enhance intermittent running performance in trained rugby players. Eur J Sport Sci. 2023 Dec;23(12):2321-2328. doi: 10.1080/17461391.2023.2230942. Epub 2023 Jul 13.
- Background: PubMed 34965876d'Unienville NMA, Blake HT, Coates AM, Hill AM, Nelson MJ, Buckley JD. Effect of food sources of nitrate, polyphenols, L-arginine and L-citrulline on endurance exercise performance: a systematic review and meta-analysis of randomised controlled trials. J Int Soc Sports Nutr. 2021 Dec 29;18(1):76. doi: 10.1186/s12970-021-00472-y.
- Background: PubMed 29311764Dominguez R, Mate-Munoz JL, Cuenca E, Garcia-Fernandez P, Mata-Ordonez F, Lozano-Estevan MC, Veiga-Herreros P, da Silva SF, Garnacho-Castano MV. Effects of beetroot juice supplementation on intermittent high-intensity exercise efforts. J Int Soc Sports Nutr. 2018 Jan 5;15:2. doi: 10.1186/s12970-017-0204-9. eCollection 2018.
- Individual participant dataSharing planned: Yes. The study is expected to be written and submitted to peer-reviewed, indexed journals in areas such as nutrition, exercise physiology, and public health.
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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. This study is not recruiting at the moment.
Ligia S Guerrero, PhD. MSc. ND study director
Universidad Nacional de Colombia
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing 40 meters sprint, Fitness test by bronco test and Maximal strength in people with Athletic Performance, run by Universidad Nacional de Colombia at 1 site in Colombia.
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 3 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: finished, as of the sponsor's last update on 12 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Colombia. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. 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?
Yes. Results are posted in the registry (first posted 12 Dec 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Results Obtained in the Physical Tests to Evaluate Impact on Acceleration (time frame: First and second physical tests weeks). The study lists 8 primary outcomes in all. 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 NCT07106489, which also lists 13 linked publications.
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 12 Dec 2025.