Evidence map›Paper›PMID 28251402›Full record

Trial reportEuropean journal of applied physiology2017

Dietary nitrate supplementation enhances short but not longer duration running time-trial performance.

Oliver Michael Shannon, Matthew John Barlow, Lauren Duckworth, Emily Williams, Georgina Wort, David Woods, Mario Siervo, John Paul O'Hara

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European journal of applied physiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 5 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 5 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Oliver Michael ShannonResearch Institute for Sport, Physical Activity, and Leisure, Leeds Beckett University, Leeds, LS163QS, UK. O.Shannon@LeedsBeckett.ac.uk.
Matthew John BarlowResearch Institute for Sport, Physical Activity, and Leisure, Leeds Beckett University, Leeds, LS163QS, UK.
Lauren DuckworthResearch Institute for Sport, Physical Activity, and Leisure, Leeds Beckett University, Leeds, LS163QS, UK.
Emily WilliamsResearch Institute for Sport, Physical Activity, and Leisure, Leeds Beckett University, Leeds, LS163QS, UK.
Georgina WortResearch Institute for Sport, Physical Activity, and Leisure, Leeds Beckett University, Leeds, LS163QS, UK.
David WoodsResearch Institute for Sport, Physical Activity, and Leisure, Leeds Beckett University, Leeds, LS163QS, UK.
Mario SiervoInstitute of Cellular Medicine, University of Newcastle, Newcastle upon Tyne, NE45PL, UK.
John Paul O'HaraResearch Institute for Sport, Physical Activity, and Leisure, Leeds Beckett University, Leeds, LS163QS, UK.

Funding

Medical Research Council MR/N007921/1
6 · The paper itself

Abstract

purposeThis study evaluated the effects of dietary nitrate (NO

methodEight trained male runners or triathletes completed four exercise performance tests comprising a 10 min warm up followed by either a 1500 or 10,000 m treadmill TT. Exercise performance tests were preceded 3 h before the exercise by supplementation with either 140 ml concentrated nitrate-rich (~12.5 mmol nitrate) (BRJ) or nitrate-deplete (~0.01 mmol nitrate) (PLA) beetroot juice.

resultsBRJ supplementation significantly elevated plasma [NO

conclusionAcute BRJ supplementation significantly enhanced 1500 m, but not 10,000 m TT performance. These findings suggest that BRJ might be ergogenic during shorter distance TTs which allow for a high work rate, but not during longer distance TTs, completed at a lower work rate.

Indexed as

Athletic PerformanceAdultBeta vulgarisBlood PressureDietary SupplementsHumansMaleNitratesOxygen ConsumptionRunningNitratesBeetroot juiceDietary supplementationExercise performanceNitric oxide

Identifiers

PMID28251402

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.