| Title |
Dietary nitrate supplementation improves team sport-specific intense intermittent exercise performance
|
|---|---|
| Published in |
European Journal of Applied Physiology, February 2013
|
| DOI | 10.1007/s00421-013-2589-8 |
| Pubmed ID | |
| Authors |
Lee J. Wylie, Magni Mohr, Peter Krustrup, Sarah R. Jackman, Georgios Ermιdis, James Kelly, Matthew I. Black, Stephen J. Bailey, Anni Vanhatalo, Andrew M. Jones |
| Abstract |
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. |
X Demographics
The data shown below were collected from the profiles of 166 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 34 | 20% |
| United States | 23 | 14% |
| Australia | 19 | 11% |
| Canada | 8 | 5% |
| Belgium | 4 | 2% |
| Spain | 4 | 2% |
| South Africa | 3 | 2% |
| New Zealand | 2 | 1% |
| Netherlands | 2 | 1% |
| Other | 13 | 8% |
| Unknown | 54 | 33% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 87 | 52% |
| Practitioners (doctors, other healthcare professionals) | 38 | 23% |
| Scientists | 38 | 23% |
| Science communicators (journalists, bloggers, editors) | 1 | <1% |
| Unknown | 2 | 1% |
Mendeley readers
The data shown below were compiled from readership statistics for 396 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 5 | 1% |
| United States | 1 | <1% |
| Brazil | 1 | <1% |
| Unknown | 389 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 85 | 21% |
| Student > Bachelor | 79 | 20% |
| Student > Ph. D. Student | 38 | 10% |
| Student > Postgraduate | 27 | 7% |
| Researcher | 22 | 6% |
| Other | 64 | 16% |
| Unknown | 81 | 20% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 162 | 41% |
| Agricultural and Biological Sciences | 38 | 10% |
| Medicine and Dentistry | 35 | 9% |
| Nursing and Health Professions | 27 | 7% |
| Social Sciences | 8 | 2% |
| Other | 35 | 9% |
| Unknown | 91 | 23% |
Attention Score in Context
This research output has an Altmetric Attention Score of 188. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 24 January 2022.
All research outputs
#211,561
of 25,373,627 outputs
Outputs from European Journal of Applied Physiology
#47
of 4,345 outputs
Outputs of similar age
#1,434
of 291,207 outputs
Outputs of similar age from European Journal of Applied Physiology
#2
of 27 outputs
Altmetric has tracked 25,373,627 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 4,345 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 14.6. This one has done particularly well, scoring higher than 98% of its peers.
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We're also able to compare this research output to 27 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 92% of its contemporaries.