Financiado en parte por Gatorade Sports Science Institute
Influence of dietary nitrate supplementation on physiological and muscle metabolic adaptations to sprint interval training
Thompson C, Wylie LJ, Blackwell JR, Fulford J, Black MI, Kelly J, McDonagh ST, Carter J, Bailey SJ, Vanhatalo A, Jones AM
Journal of applied physiology (Bethesda, Md. : 1985) · 41 citas
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Cómo se estudió
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- Ensayo clínico controlado (indexado por PubMed)
- Estudiado en
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- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiado por la industria
- Empresa
- Gatorade Sports Science Institute
Según 1 financiador declarado.
Publicación
- Publicado
- 2016-12-02 · J Appl Physiol (1985) · vol. 122 · número 3 · págs. 642–652
- Editorial
- American Physiological Society
- Citado
- 52 citas · más que el 99% de estudios similares · 14.1× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 79 trabajos
- Acceso
- Acceso abierto (copia en repositorio)
- Áreas de investigación
- Cardiovascular and exercise physiology · Exercise and Physiological Responses · Sports Performance and Training
- Palabras clave
- Sprint, Interval training, Animal science, Medicine, Placebo, VO2 max, Dietary Nitrate, High-intensity interval training, Heart rate, Anaerobic exercise, Internal medicine, Leg press, Exercise physiology, Endocrinology, Physical therapy, Chemistry, Blood pressure, Nitrate, Biology, Resistance training
- MeSH
- muscle, skeletal, humans, nitrates, oxygen, administration, oral, task performance and analysis, adaptation, physiological, oxygen consumption, running, dietary supplements, adult, male, athletic performance, high-intensity interval training
11 autores
- Christopher Thompson🇬🇧University of Exeter
- Lee J. Wylie🇬🇧University of Exeter
- Jamie R. Blackwell🇬🇧University of Exeter
- Jonathan Fulford🇬🇧University of Exeter; National Institute for Health and Care Research; NIHR Exeter Clinical Research Facility
- Matthew I. Black🇬🇧University of Exeter
- JAMES A. KELLY🇬🇧University of Exeter
- Sinéad T. J. McDonagh🇬🇧University of Exeter
- JAMES H. CARTER🇺🇸Gatorade Sports Science Institute
- 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.
We hypothesized that 4 wk of dietary nitrate supplementation would enhance exercise performance and muscle metabolic adaptations to sprint interval training (SIT). Thirty-six recreationally active subjects, matched on key variables at baseline, completed a series of exercise tests before and following a 4-wk period in which they were allocated to one of the following groups: 1) SIT and [Formula: see text]-depleted beetroot juice as a placebo (SIT+PL); 2) SIT and [Formula: see text]-rich beetroot juice (~13 mmol [Formula: see text]/day; SIT+BR); or 3) no training and [Formula: see text]-rich beetroot juice (NT+BR). During moderate-intensity exercise, pulmonary oxygen uptake was reduced by 4% following 4 wk of SIT+BR and NT+BR (P P P P P > 0.05). The relative proportion of type IIx muscle fibers in the vastus lateralis muscle was reduced in SIT+BR only (P NEW & NOTEWORTHY We investigated the influence of nitrate-rich and nitrate-depleted beetroot juice on the muscle metabolic and physiological adaptations to 4 wk of sprint interval training. Compared with placebo, dietary nitrate supplementation reduced the O2 cost of submaximal exercise, resulted in greater improvement in incremental (but not severe-intensity) exercise performance, and augmented some muscle metabolic adaptations to training. Nitrate supplementation may facilitate some of the physiological responses to sprint interval training.
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