Funded in part by 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 citations
Review labels
Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.
How it was studied
- Design
- Controlled clinical trial (indexed by PubMed)
- Studied in
- People
- Main outcome
- Health markers and function
- Intake measured by
- Not stated
Who paid for it
- Funding
- Industry funded
- Company
- Gatorade Sports Science Institute
Based on 1 listed funder(s).
Publication
- Published
- 2016-12-02 · J Appl Physiol (1985) · vol. 122 · issue 3 · pp. 642–652
- Publisher
- American Physiological Society
- Cited
- 51 citations · more than 99% of similar papers · 14.1× the field average
- Impact
- Top 10% most cited in its field
- References
- 79 works
- Access
- Open access (repository copy)
- Research areas
- Cardiovascular and exercise physiology · Exercise and Physiological Responses · Sports Performance and Training
- Keywords
- 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 authors
From GB, US
- Christopher ThompsonUniversity of Exeter
- Lee J. WylieUniversity of Exeter
- Jamie R. BlackwellUniversity of Exeter
- Jonathan FulfordUniversity of Exeter; National Institute for Health and Care Research; NIHR Exeter Clinical Research Facility
- Matthew I. BlackUniversity of Exeter
- JAMES A. KELLYUniversity of Exeter
Abstract
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.
Abstract via Europe PMC. Copyright remains with the authors or publisher.
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