Evidence map›Paper›PMID 30820661›Full record

Trial reportEuropean journal of applied physiology2019

The effect of severe and moderate hypoxia on exercise at a fixed level of perceived exertion.

Owen Jeffries, Stephen David Patterson, Mark Waldron

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in European journal of applied physiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed.

  1. Trial
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  9. Reframing SpOFrontiers in physiology · 2025
    Review
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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

3 authors.

Owen JeffriesFaculty of Medical Sciences, School of Biomedical Sciences, Newcastle University, Newcastle Upon Tyne, NE2 4HH, UK. owen.jeffries@newcastle.ac.uk.ORCID http://orcid.org/0000-0002-8169-1100
Stephen David PattersonSchool of Sport, Health and Applied Science, St Mary's University, Twickenham, London, TW1 4SX, UK.ORCID http://orcid.org/0000-0003-4667-9939
Mark WaldronSchool of Sport, Health and Applied Science, St Mary's University, Twickenham, London, TW1 4SX, UK.ORCID http://orcid.org/0000-0002-2720-4615

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to determine the primary cues regulating perceived effort and exercise performance using a fixed-RPE protocol in severe and moderate hypoxia.

methodsEight male participants (26 ± 6 years, 76.3 ± 8.6 kg, 178.5 ± 3.6 cm, 51.4 ± 8.0 mL kg

resultsExercise time was reduced (severe hypoxia 428 ± 210 s; moderate hypoxia 1044 ± 384 s; normoxia 1550 ± 590 s) according to a reduction in F

conclusionsThe primary cues for determining perceived effort relate to progressive arterial hypoxemia and increases in ventilation.

Indexed as

Physical ExertionAdultAltitude SicknessDouble-Blind MethodHumansMaleOxygen ConsumptionPerceptionPhysical Conditioning, HumanAltitudeArterial oxygen saturationCognitionExerciseHypoxemiaVentilation

Identifiers

PMID30820661
PMCPMC6469630

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.