Evidence map›Paper›PMID 22795722›Full record

Trial reportInternational journal of cardiology2013

Central and peripheral quadriceps fatigue in congestive heart failure.

Nicholas S Hopkinson, Mark J Dayer, Sophie Antoine-Jonville, Elisabeth B Swallow, Raphael Porcher, Ali Vazir, Philip Poole-Wilson, Michael I Polkey

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in International journal of cardiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

9 citing papers in PubMed, 22 citations in OpenAlex.

  1. A cardiovascular-motor axis framework for perfusion-mediated motor impairment.International journal of cardiology. Heart & vasculature · 2026
    Review
  2. Review
  3. Neuromuscular fatigue during whole body exercise.Current opinion in physiology · 2019
    Article
  4. Article
  5. Skeletal Muscle Fatigability in Heart Failure.Frontiers in physiology · 2019
    Article
  6. Article
  7. Review
  8. Article
  9. Review
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 at 3 institutions in 2 countries.

Nicholas S HopkinsonNIHR Respiratory Biomedical Research Unit at Royal Brompton and Harefield NHS Foundation Trust and Imperial College London, Royal Brompton Hospital, London, UK. n.hopkinson@ic.ac.uk
Mark J Dayer
Sophie Antoine-Jonville
Elisabeth B Swallow
Raphael Porcher
Ali Vazir
Philip Poole-Wilson
Michael I Polkey
Hôpital Saint-Louis · FRImperial College London · GBRoyal Brompton Hospital · GB

Funding

British Heart Foundation
6 · The paper itself

Abstract

aimsThe clinical syndrome of heart failure includes exercise limitation that is not directly linked to measures of cardiac function. Quadriceps fatigability may be an important component of this and this may arise from peripheral or central factors. METHODS AND

resultsWe studied 10 men with CHF and 10 healthy age-matched controls. Compared with a rest condition, 10 min after incremental maximal cycle exercise, twitch quadriceps force in response to supramaximal magnetic femoral nerve stimulation fell in both groups (CHF 14.1% ± 18.1%, p=0.037; CONTROL: 20.8 ± 11.0%, p<0.001; no significant difference between groups). There was no significant change in quadriceps maximum voluntary contraction voluntary force. The difference in the motor evoked potential (MEP) response to transcranial magnetic stimulation of the motor cortex between rest and exercise conditions at 10 min, normalised to the peripheral action potential, also fell significantly in both groups (CHF: 27.3 ± 38.7%, p=0.037; CONTROL: 41.1 ± 47.7%, p=0.024). However, the fall in MEP was sustained for a longer period in controls than in patients (p=0.048).

conclusionsThe quadriceps is more susceptible to fatigue, with a similar fall in TwQ occurring in CHF patients at lower levels of exercise. This is associated with no change in voluntary activation but a lesser degree of depression of quadriceps motor evoked potential.

Indexed as

AdultAgedExercise TestFemaleHeart FailureHumansMaleMiddle AgedMuscle ContractionMuscle FatigueQuadriceps MuscleTranscranial Magnetic StimulationBrainExerciseMusclesTranscranial magnetic stimulation

Identifiers

PMID22795722
PMCPMC3776927
OpenAlexW2025406438

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.