Cited by 776Cardiovascular Effects of ExerciseCardiovascular and exercise physiologyCardiomyopathy and Myosin Studies

The DOI matches its Crossref record; 51 of the 51 references it cites were found in a registry or an index; 13 of the 33 sources its claims cite were checked for support.

Exercise-induced right ventricular dysfunction and structural remodelling in endurance athletes

Open access

Abstract

AIMS: Endurance training may be associated with arrhythmogenic cardiac remodelling of the right ventricle (RV). We examined whether myocardial dysfunction following intense endurance exercise affects the RV more than the left ventricle (LV) and whether cumulative exposure to endurance competition influences cardiac remodelling (including fibrosis) in well-trained athletes. METHODS AND RESULTS: Forty athletes were studied at baseline, immediately following an endurance race (3-11 h duration) and 1-week post-race. Evaluation included cardiac troponin (cTnI), B-type natriuretic peptide, and echocardiography [including three-dimensional volumes, ejection fraction (EF), and systolic strain rate]. Delayed gadolinium enhancement (DGE) on cardiac magnetic resonance imaging (CMR) was assessed as a marker of myocardial fibrosis. Relative to baseline, RV volumes increased and all functional measures decreased post-race, whereas LV volumes reduced and function was preserved. B-type natriuretic peptide (13.1 ± 14.0 vs. 25.4 ± 21.4 ng/L, P = 0.003) and cTnI (0.01 ± .03 vs. 0.14 ± .17 μg/L, P < 0.0001) increased post-race and correlated with reductions in RVEF (r = 0.52, P = 0.001 and r = 0.49, P = 0.002, respectively), but not LVEF. Right ventricular ejection fraction decreased with increasing race duration (r = -0.501, P < 0.0001) and VO(2)max (r = -0.359, P = 0.011). Right ventricular function mostly recovered by 1 week. On CMR, DGE localized to the interventricular septum was identified in 5 of 39 athletes who had greater cumulative exercise exposure and lower RVEF (47.1 ± 5.9 vs. 51.1 ± 3.7%, P = 0.042) than those with normal CMR. CONCLUSION: Intense endurance exercise causes acute dysfunction of the RV, but not the LV. Although short-term recovery appears complete, chronic structural changes and reduced RV function are evident in some of the most practiced athletes, the long-term clinical significance of which warrants further study.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

In 40 well-trained endurance athletes, intense endurance exercise caused acute right ventricular (RV) dysfunction and dilation while left ventricular (LV) function was preserved, with most RV recovery by 1 week. A minority showed septal delayed gadolinium enhancement (DGE) and greater cumulative exercise exposure, suggesting possible chronic RV-predominant remodelling.

Key findings

  • Post-race RV volumes increased and all RV functional measures decreased, whereas LV volumes decreased and LV function was preserved; RVEF fell by 9% relative to baseline (P < 0.0001) and mostly recovered by 1 week, except RVSRs remained depressed.
  • Post-race BNP (13.1 ± 14.0 vs. 25.4 ± 21.4 ng/L, P = 0.003) and cTnI (0.01 ± 0.03 vs. 0.14 ± 0.17 mg/L, P < 0.0001) increased and correlated with reductions in RVEF (r = 0.52, P = 0.001 and r = 0.49, P = 0.002, respectively), but not LVEF.
  • RVEF decreased with increasing race duration (r = −0.501, P < 0.0001) and VO2max (r = −0.359, P = 0.011); race completion time and VO2max independently explained 34% of the variance in ΔRVEF (P = 0.001).
  • DGE localized to the interventricular septum in 5 of 39 athletes (12.8%); those athletes had greater cumulative exercise exposure and lower RVEF (47.1 ± 5.9 vs. 51.1 ± 3.7%, P = 0.042) than those with normal CMR.

Methods

  • Prospective study of 40 well-trained athletes competing in a marathon, endurance triathlon, alpine cycling race, or ultratriathlon; assessments were at baseline, immediately post-race, and 6–11 days after the race.
  • Evaluation included cardiac troponin I, B-type natriuretic peptide, echocardiography (three-dimensional volumes, ejection fraction, systolic strain rate), and cardiac magnetic resonance imaging with delayed gadolinium enhancement for myocardial fibrosis.
  • Statistical analysis used paired t-tests, ANOVA, factorial repeated-measures ANOVA, and forward stepwise multivariable analysis; the sample size of 40 was prospectively determined to have 90% power to detect a 10% relative reduction in RVEF.

Limitations

  • Stated: DGE within the RV free wall was not assessed because adequate nulling of normal RV free wall myocardium was visualized in only a minority of athletes; athletic remodelling may cause fibrosis to be under-appreciated with relative-enhancement techniques.
  • Stated: the cohort was relatively small and underpowered for clinical sequelae; biomarker assessment at a single time point may limit interpretation; conclusions about exercise duration are tempered by confounders such as training levels, exercise modality, race conditions, and motivation.
  • Evident from text: the study reports no long-term clinical outcomes, and prognostic implications from other clinical conditions should not be extrapolated to this healthy athletic cohort.

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Integrity signals

Registry

Crossref · 10.1093/eurheartj/ehr397

Cites

51 of 51 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

32 Own result · 15 Own interpretation · 8 Own method · 7 No full text of the sources · 4 Partly supported · 3 Supported so far · 2 Supported · 1 Not checked yet · 1 No basis given · accuracy not yet measured

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Show all 40 claims

  • Probably not a substantial claim. 10
  • It may state two separate claims as one. 25
  • The quote only partly states this claim. 2
33 of 33
  • The paper relies on this without support.

    The four endurance events represent a progressive increase in exercise duration.

    “The four events were selected to represent a progressive increase in exercise duration”
  • The paper relies on this without support.

    Post-race changes in load, myocardial substrates, and metabolites should confound right ventricular and left ventricular measures similarly.

    “Comparisons with the LV are most instructive, given that post-race changes in load, myocardial substrates, and metabolites should confound RV and LV measures similarly.”
  • The paper relies on this without support.

    Athletic training results in relatively uniform cardiac remodelling.

    “Secondly, athletic training results in relatively uniform cardiac remodelling and it is possible that cardiac fibrosis may be under-appreciated with current techniques that assess relative enhancement.”
  • The paper relies on this without support.

    Focal delayed gadolinium enhancement on cardiac magnetic resonance indicates myocardial fibrosis.

    “However, there remained a significant minority of athletes in whom there was evidence of myocardial fibrosis in the interventricular septum.”
4 of 4

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2 of 2

Citations

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Metadata

Authors
La Gerche, A., Burns, A. T., Mooney, D. J., Inder, W. J., Taylor, A. J., Bogaert, J., MacIsaac, A. I., Heidbüchel, H., & Prior, D. L.
Affiliations
  • St Vincent's Hospital Melbourne (AU)
  • The University of Melbourne (AU)
  • Baker Heart and Diabetes Institute (AU)
  • Universitair Ziekenhuis Leuven (BE)
Venue
European Heart Journal
Published
2011-12-06
Volume
33
Issue
8
Pages
998-1006
ISSN
  • 0195-668X (ISSN-L)
  • 1522-9645
OpenAlex
W2148325692
Cited by
776
References
48
Citations by year
2026: 34 · 2025: 41 · 2024: 36 · 2023: 38 · 2022: 62 · 2021: 42 · 2020: 82 · 2019: 48 · 2018: 62 · 2017: 61 · 2016: 64 · 2015: 62 · 2014: 71 · 2013: 38 · 2012: 30
FWCI
28.72
Type
journal article
Language
en
Open access
Locations
  • European Heart Journal (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Effects of Exercise
  • Health Sciences › Medicine › Physiology (medical) › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiomyopathy and Myosin Studies
Keywords
endurance athletes, right ventricular dysfunction, cardiac remodeling, myocardial fibrosis, arrhythmogenic cardiomyopathy, endurance exercise, right ventricular ejection fraction, late gadolinium enhancement, cardiac troponin I, brain natriuretic peptide, exercise-induced myocardial injury
MeSH terms
Adult, Female, Fibrosis, Humans, Male, Middle Aged, Myocardium, Physical Endurance, Stroke Volume, Biomarkers, Exercise, Ventricular Dysfunction, Right, Magnetic Resonance Angiography, Troponin I, Ventricular Remodeling, Athletes

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