| Title |
Dietary nitrate improves sprint performance and cognitive function during prolonged intermittent exercise
|
|---|---|
| Published in |
European Journal of Applied Physiology, April 2015
|
| DOI | 10.1007/s00421-015-3166-0 |
| Pubmed ID | |
| Authors |
Christopher Thompson, Lee J. Wylie, Jonathan Fulford, James Kelly, Matthew I. Black, Sinead T. J. McDonagh, Asker E. Jeukendrup, Anni Vanhatalo, Andrew M. Jones |
| Abstract |
It is possible that dietary nitrate (NO3 (-)) supplementation may improve both physical and cognitive performance via its influence on blood flow and cellular energetics. To investigate the effects of dietary NO3 (-) supplementation on exercise performance and cognitive function during a prolonged intermittent sprint test (IST) protocol, which was designed to reflect typical work patterns during team sports. In a double-blind randomised crossover study, 16 male team-sport players received NO3 (-)-rich (BR; 140 mL day(-1); 12.8 mmol of NO3 (-)), and NO3 (-)-depleted (PL; 140 mL day(-1); 0.08 mmol NO3 (-)) beetroot juice for 7 days. On day 7 of supplementation, subjects completed the IST (two 40-min "halves" of repeated 2-min blocks consisting of a 6-s "all-out" sprint, 100-s active recovery and 20 s of rest), on a cycle ergometer during which cognitive tasks were simultaneously performed. Total work done during the sprints of the IST was greater in BR (123 ± 19 kJ) compared to PL (119 ± 17 kJ; P < 0.05). Reaction time of response to the cognitive tasks in the second half of the IST was improved in BR compared to PL (BR first half: 820 ± 96 vs. second half: 817 ± 86 ms; PL first half: 824 ± 114 vs. second half: 847 ± 118 ms; P < 0.05). There was no difference in response accuracy. These findings suggest that dietary NO3 (-) enhances repeated sprint performance and may attenuate the decline in cognitive function (and specifically reaction time) that may occur during prolonged intermittent exercise. |
X Demographics
The data shown below were collected from the profiles of 252 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 | 57 | 23% |
| United States | 48 | 19% |
| Ireland | 10 | 4% |
| Spain | 6 | 2% |
| Australia | 6 | 2% |
| Canada | 5 | 2% |
| Belgium | 5 | 2% |
| Netherlands | 5 | 2% |
| Italy | 3 | 1% |
| Other | 30 | 12% |
| Unknown | 77 | 31% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 159 | 63% |
| Practitioners (doctors, other healthcare professionals) | 46 | 18% |
| Scientists | 45 | 18% |
| Science communicators (journalists, bloggers, editors) | 2 | <1% |
Mendeley readers
The data shown below were compiled from readership statistics for 350 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 3 | <1% |
| Japan | 1 | <1% |
| Netherlands | 1 | <1% |
| Brazil | 1 | <1% |
| Unknown | 344 | 98% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 69 | 20% |
| Student > Bachelor | 52 | 15% |
| Student > Ph. D. Student | 40 | 11% |
| Researcher | 23 | 7% |
| Student > Postgraduate | 19 | 5% |
| Other | 56 | 16% |
| Unknown | 91 | 26% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 109 | 31% |
| Medicine and Dentistry | 35 | 10% |
| Nursing and Health Professions | 29 | 8% |
| Agricultural and Biological Sciences | 27 | 8% |
| Biochemistry, Genetics and Molecular Biology | 12 | 3% |
| Other | 39 | 11% |
| Unknown | 99 | 28% |
Attention Score in Context
This research output has an Altmetric Attention Score of 395. 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 11 December 2023.
All research outputs
#77,521
of 25,639,676 outputs
Outputs from European Journal of Applied Physiology
#17
of 4,381 outputs
Outputs of similar age
#741
of 280,599 outputs
Outputs of similar age from European Journal of Applied Physiology
#1
of 41 outputs
Altmetric has tracked 25,639,676 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 4,381 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 99% of its peers.
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We're also able to compare this research output to 41 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 97% of its contemporaries.