Evidence map›Paper›PMID 34586471›Full record

ArticleEuropean journal of applied physiology2022

The effect of elevated muscle pain on neuromuscular fatigue during exercise.

Ryan Norbury, Samuel A Smith, Mark Burnley, Megan Judge, Alexis R Mauger

Open access · hybridAbstract read
In one paragraph

Article in European journal of applied physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
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

19 citing papers in PubMed, 36 citations in OpenAlex.

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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 at 1 institution in 1 country.

Ryan NorburyEndurance Research Group, School of Sports and Exercise Sciences, University of Kent, Chipperfield Building, Canterbury Campus, Canterbury, CT2 7NZ, Kent, UK.ORCID http://orcid.org/0000-0002-0736-6131
Samuel A SmithEndurance Research Group, School of Sports and Exercise Sciences, University of Kent, Chipperfield Building, Canterbury Campus, Canterbury, CT2 7NZ, Kent, UK.ORCID http://orcid.org/0000-0002-0833-0878
Mark BurnleyEndurance Research Group, School of Sports and Exercise Sciences, University of Kent, Chipperfield Building, Canterbury Campus, Canterbury, CT2 7NZ, Kent, UK.ORCID http://orcid.org/0000-0003-3407-561X
Megan JudgeEndurance Research Group, School of Sports and Exercise Sciences, University of Kent, Chipperfield Building, Canterbury Campus, Canterbury, CT2 7NZ, Kent, UK.ORCID http://orcid.org/0000-0003-0204-1220
Alexis R MaugerEndurance Research Group, School of Sports and Exercise Sciences, University of Kent, Chipperfield Building, Canterbury Campus, Canterbury, CT2 7NZ, Kent, UK. l.mauger@kent.ac.uk.ORCID http://orcid.org/0000-0001-6685-5800
University of Kent · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeMuscle pain can impair exercise performance but the mechanisms for this are unknown. This study examined the effects of muscle pain on neuromuscular fatigue during an endurance task.

methodsOn separate visits, twelve participants completed an isometric time-to-task failure (TTF) exercise of the right knee extensors at ~ 20% of maximum force following an intramuscular injection of isotonic saline (CTRL) or hypertonic saline (HYP) into the vastus lateralis. Measures of neuromuscular fatigue were taken before, during and after the TTF using transcranial magnetic stimulation (TMS) and peripheral nerve stimulation.

resultsThe mean pain intensity was 57 ± 10 in HYP compared to 38 ± 18 in CTRL (P < 0.001). TTF was reduced in HYP (4.36 ± 0.88 min) compared to CTRL (5.20 ± 0.39 min) (P = 0.003). Maximum voluntary force was 12% lower at minute 1 (P = 0.003) and 11% lower at minute 2 in HYP (P = 0.013) compared to CTRL. Voluntary activation was 4% lower at minute 1 in HYP compared to CTRL (P = 0.006) but not at any other time point (all P > 0.05). The TMS silent period was 9% longer at 100 s during the TTF in HYP compared to CTRL (P = 0.026).

conclusionMuscle pain reduces exercise performance through the excacerbation of neuromuscular fatigue that is central in origin. This appears to be from inhibitory feedback from group III/IV nociceptors which acts to reduce central motor output.

Indexed as

AdultElectric StimulationFemaleHumansInjections, IntramuscularLegMaleMuscle FatigueMusculoskeletal PainPain MeasurementPeripheral NervesPhysical EnduranceSodium ChlorideTranscranial Magnetic StimulationSodium ChlorideCentral fatigueIsometric performanceMuscle painNeuromuscular fatigueTranscranial magnetic stimulation

Identifiers

PMID34586471
PMCPMC8748369
OpenAlexW3203742277

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.