Effects of Dietary Nitrates on Time Trial Performance in Athletes with Different Training Status: Systematic Review
Open accessAbstract
Much research has been done in sports nutrition in recent years as the demand for performance-enhancing substances increases. Higher intake of nitrates from the diet can increase the bioavailability of nitric oxide (NO) via the nitrate–nitrite–NO pathway. Nevertheless, the increased availability of NO does not always lead to improved performance in some individuals. This review aims to evaluate the relationship between the athlete’s training status and the change in time trial performance after increased dietary nitrate intake. Articles indexed by Scopus and PubMed published from 2015 to 2019 were reviewed. Thirteen articles met the eligibility criteria: clinical trial studies on healthy participants with different training status (according to VO2max), conducting time trial tests after dietary nitrate supplementation. The PRISMA guidelines were followed to process the review. We found a statistically significant relationship between VO2max and ergogenicity in time trial performance using one-way ANOVA (p = 0.001) in less-trained athletes (VO2 < 55 mL/kg/min). A strong positive correlation was observed in experimental situations using a chronic supplementation protocol but not in acute protocol situations. In the context of our results and recent histological observations of muscle fibres, there might be a fibre-type specific role in nitric oxide production and, therefore, supplement of ergogenicity.
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Dietary nitrates, typically ingested as beet root juice or nitrate powder, can improve endurance and explosive exercise capacity.
“A number of studies have indicated that dietary nitrates, typically ingested in the form of beet root juice or nitrate powder, can improve endurance [203] and explosive exercise capacity [204].”
From Bioavailability, Efficacy, Safety, and Regulatory Status of Creatine and Related Compounds: A Critical Review (2022) · cites this paper as [203]
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“These seem to be possible explanations for the lower ergogenicity of DN supplementation in highly trained or elite athletes, as some studies failed to enhance the performance of the participants [52,71].”
ResultCommentaries on Viewpoint: Can elite athletes benefit from dietary nitrate supplementation?
(2015) · Journal of Applied Physiology · doi:10.1152/japplphysiol.00640.2015 · Cited by 19 · see citing works
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Cited by
Sorted by citations
Smith, E. S., McKay, A. K. A., Kuikman, M., Ackerman, K. E., Harris, R., Elliott-Sale, K. J., Stellingwerff, T., & Burke, L. M. (2022) · Nutrients · doi:10.3390/nu14050953 · Cited by 113 · see citing works
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- Authors
- Hlinský, T., Kumstát, M., & Vajda, P.
- Affiliations
- Masaryk University (CZ)
- Corresponding author
- Hlinský, Tomáš
- Venue
- Nutrients
- Publisher
- MDPI AG
- Published
- 2020-09-08
- Volume
- 12
- Issue
- 9
- Pages
- 2734
- ISSN
- 2072-6643 (ISSN-L)
- PMC
- PMC7551808
- OpenAlex
- W3084042367
- Cited by
- 26
- References
- 36
- Citations by year
- 2026: 4 · 2025: 1 · 2024: 1 · 2023: 7 · 2022: 10 · 2021: 3
- FWCI
- 1.03
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Nutrients (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Veřejné služby Informačního systému (Masarykiana Brunensis Universitas) (submittedVersion, other-oa)
- Funders
- Masarykova Univerzita (MUNI/A/1201/2018)
- Topics
- Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
- Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
- Keywords
- dietary nitrate, nitrate supplementation, time trial performance, training status, VO2max, nitric oxide bioavailability, nitrate-nitrite-nitric oxide pathway, ergogenic aids, trained vs untrained athletes, muscle fiber type
- MeSH terms
- Humans, Nitrates, Nitric Oxide, Oxygen Consumption, Physical Endurance, Time Factors, Databases, Factual, Muscle Fibers, Skeletal, Dietary Supplements, Athletic Performance, Athletes, Performance-Enhancing Substances
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