High dose Nitrate ingestion does not improve 40 km cycling time trial performance in trained cyclists
Abstract
This study evaluated the chronic effects of nitrate (NO3−) ingestion over three days, on 40 km TT performance in 11trained cyclists (VO2max: 60.8 ± 7.4 ml.kg−1.min−1; age: 36 ± 9 years; height: 1.80 ± 0.06 m; body mass: 87.2 ± 12.0 kg). Utilising a double-blind randomised cross-over design, participants completed three 40 km TT on a Velotron® ergometer following the ingestion of either a 140 ml of “BEET It sport®” NO3− shot containing 12.8 mmol or 800 mg of NO3−, a placebo drink or nothing (control). Performance, oxygen consumption (VO2), blood bicarbonate (HCO3-), pH and lactate (BLa) and ratings of perceived exertion (RPE) were measured every 10 km throughout the TT. The present findings show that NO3− ingestion had no effect on TT performance (NO3−: 4098.0 ± 209.8 vs. Placebo: 4161.9 ± 263.3 s, p = 0.296, ES = 0.11), or VO2 (p = 0.253, ES = 0.13). Similarly, blood lactate and RPE were also unaffected by the experimental conditions (p = 0.522, ES = 0.06; p = 0.085, ES = 0.30) respectively. Therefore, these results suggest that a high dose of NO3− over three days has limited efficacy as an ergogenic aid for 40 km TT cycling performance in trained cyclists.
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An ergogenic effect of NO3− supplementation appears less likely in endurance-trained individuals.
“Although an ergogenic effect of NO3− supplementation appears less likely in endurance-trained individuals, i.e., [65,66,67,68,69,70,71,72,73,74], recent systematic reviews support its efficacy as an ergogenic aid during continuous endurance-type exercise [75,76,77] and high-intensity intermittent-type exercise [78].”
From Effects of Dietary Nitrate Supplementation on Weightlifting Exercise Performance in Healthy Adults: A Systematic Review (2020) · cites this paper as [71]
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- Authors
- Mosher, S. L., Gough, L. A., Deb, S., Saunders, B., Mc Naughton, L. R., Brown, D. R., & Sparks, S. A.
- Affiliations
- Edge Hill University (GB)
- Birmingham City University (GB)
- University of Westminster (GB)
- Universidade de São Paulo (BR)
- Sports Performance and Nutrition Group, Edge Hill University, Ormskirk, UK
- Venue
- Research in Sports Medicine
- Publisher
- Informa UK Limited
- Published
- 2019-03-08
- Volume
- 28
- Issue
- 1
- Pages
- 138-146
- ISSN
- 1543-8627 (ISSN-L)
- 1543-8635
- OpenAlex
- W2922169489
- Cited by
- 9
- References
- 32
- Citations by year
- 2025: 1 · 2022: 1 · 2021: 3 · 2020: 4
- FWCI
- 2.12
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Research in Sports Medicine (publishedVersion)
- PubMed (publishedVersion)
- WestminsterResearch (University of Westminster) (acceptedVersion)
- BCU Open Access Repository (Birmingham City University) (acceptedVersion)
- Edge Hill University Research Information Repository (Edge Hill University) (submittedVersion)
- Funders
- funding provided for any aspects
- Topics
- Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
- Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
- Keywords
- nitrate ingestion, beetroot juice, cycling performance, trained cyclists, oxygen consumption, blood lactate, blood bicarbonate, rating of perceived exertion, ergogenic aids
- MeSH terms
- Adult, Bicycling, Double-Blind Method, Humans, Male, Middle Aged, Nitrates, Oxygen Consumption, Cross-Over Studies, Lactic Acid, Beta vulgaris, Athletic Performance, Performance-Enhancing Substances
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