Evidence map›Paper›PMID 34528132›Full record

Trial reportEuropean journal of applied physiology2021

Hypohydration produced by high-intensity intermittent running increases biomarkers of renal injury in males.

Loris A Juett, Katharine L Midwood, Mark P Funnell, Lewis J James, Stephen A Mears

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in European journal of applied physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–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

7 citing papers in PubMed.

  1. Trial
  2. Article
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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

5 authors.

Loris A JuettSchool of Sport, Exercise and Health Sciences, Loughborough University, Leicestershire, LE11 3TU, UK.
Katharine L MidwoodSchool of Sport, Exercise and Health Sciences, Loughborough University, Leicestershire, LE11 3TU, UK.
Mark P FunnellSchool of Sport, Exercise and Health Sciences, Loughborough University, Leicestershire, LE11 3TU, UK.
Lewis J JamesSchool of Sport, Exercise and Health Sciences, Loughborough University, Leicestershire, LE11 3TU, UK.
Stephen A MearsSchool of Sport, Exercise and Health Sciences, Loughborough University, Leicestershire, LE11 3TU, UK. S.A.Mears@lboro.ac.uk.ORCID http://orcid.org/0000-0003-3941-9426

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWhilst there is evidence to suggest that hypohydration caused by physical work in the heat increases renal injury, whether this is the case during exercise in temperate conditions remains unknown. This study investigated the effect of manipulating hydration status during high-intensity intermittent running on biomarkers of renal injury.

methodsAfter familiarisation, 14 males (age: 33 ± 7 years; V̇O

resultsPost-exercise, body mass loss, serum osmolality and urine osmolality were greater in HYP than EU (P ≤ 0.024). Osmolality-corrected urinary kidney injury molecule-1 (uKIM-1) concentrations were increased post-exercise (P ≤ 0.048), with greater concentrations in HYP than EU (HYP: 2.76 [1.72-4.65] ng/mOsm; EU: 1.94 [1.1-2.54] ng/mOsm; P = 0.003; median [interquartile range]). Osmolality-corrected urinary neutrophil gelatinase-associated lipocalin (uNGAL) concentrations were increased post-exercise (P < 0.001), but there was no trial by time interaction effect (P = 0.073).

conclusionThese results suggest that hypohydration produced by high-intensity intermittent running increases renal injury, compared to when euhydration is maintained, and that the site of this increased renal injury is at the proximal tubules.

Indexed as

RunningAcute Kidney InjuryAdultBiomarkersBody Mass IndexCross-Over StudiesDehydrationHot TemperatureHumansMaleOsmolar ConcentrationBiomarkersDehydrationKIM-1NGALRenal injuryWater intake

Identifiers

PMID34528132
PMCPMC8571244

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Registered trials

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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.