Dietary nitrate supplementation improves team sport-specific intense intermittent exercise performance
Wylie LJ, Mohr M, Krustrup P, Jackman SR, Ermιdis G, Kelly J, Black MI, Bailey SJ, Vanhatalo A, Jones AM
European journal of applied physiology · 151 citas
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- Ensayo controlado aleatorizado (indexado por PubMed)
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- Resultado principal
- Marcadores de salud y funcionamiento
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Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2013-01-31 · Eur J Appl Physiol · vol. 113 · número 7 · págs. 1673–1684
- Editorial
- Springer Science+Business Media
- Citado
- 218 citas · más que el 100% de estudios similares · 18.5× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 70 trabajos
- Acceso
- De pago
- Áreas de investigación
- Exercise and Physiological Responses · Cardiovascular and exercise physiology · Sports Performance and Training
- Palabras clave
- nitrate supplementation, beetroot juice, team sports, nitrite, nitric oxide, plasma nitrite, exercise performance, blood glucose, potassium, lactate, ergogenic aids
- MeSH
- humans, beta vulgaris, nitrates, nitrites, potassium, blood glucose, exercise, double-blind method, beverages, dietary supplements, male, athletic performance, young adult
10 autores
- Lee J. Wylie🇬🇧University of Exeter
- Magni Mohr🇬🇧University of Exeter
- Peter Krustrup🇬🇧University of Exeter
- Sarah R. Jackman🇬🇧University of Exeter
- Georgios Ermιdis🇬🇧University of Exeter
- JAMES A. KELLY🇬🇧University of Exeter
- Matthew I. Black🇬🇧University of Exeter
- Stephen J. Bailey🇬🇧University of Exeter
- Anni Vanhatalo🇬🇧University of Exeter
- ANDREW MARK JONES🇬🇧 · autor de correspondenciaUniversity of Exeter
Resumen
El texto original del estudio, en el idioma en que se publicó.
Recent studies have suggested that dietary inorganic nitrate (NO₃(-)) supplementation may improve muscle efficiency and endurance exercise tolerance but possible effects during team sport-specific intense intermittent exercise have not been examined. We hypothesized that NO₃(-) supplementation would enhance high-intensity intermittent exercise performance. Fourteen male recreational team-sport players were assigned in a double-blind, randomized, crossover design to consume 490 mL of concentrated, nitrate-rich beetroot juice (BR) and nitrate-depleted placebo juice (PL) over ~30 h preceding the completion of a Yo-Yo intermittent recovery level 1 test (Yo-Yo IR1). Resting plasma nitrite concentration ([NO₂(-)]) was ~400% greater in BR compared to PL. Plasma [NO₂(-)] declined by 20% in PL (P < 0.05) and by 54 % in BR (P < 0.05) from pre-exercise to end-exercise. Performance in the Yo-Yo IR1 was 4.2% greater (P < 0.05) with BR (1,704 ± 304 m) compared to PL (1,636 ± 288 m). Blood [lactate] was not different between BR and PL, but the mean blood [glucose] was lower (3.8 ± 0.8 vs. 4.2 ± 1.1 mM, P < 0.05) and the rise in plasma [K(+)] tended to be reduced in BR compared to PL (P = 0.08). These findings suggest that NO₃(-) supplementation may promote NO production via the nitrate-nitrite-NO pathway and enhance Yo-Yo IR1 test performance, perhaps by facilitating greater muscle glucose uptake or by better maintaining muscle excitability. Dietary NO₃(-) supplementation improves performance during intense intermittent exercise and may be a useful ergogenic aid for team sports players.
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