ArticleFrontiers in cardiovascular medicine2021
Exercise-Induced Cardiac Fatigue in Recreational Ultramarathon Runners at Moderate Altitude: Insights From Myocardial Deformation Analysis.
Article in Frontiers in cardiovascular medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.
- TheFrontiers in physiology · 2026Pooled it
- Early Cardiac Responses to Half-Marathon Running in Amateur Athletes: Implications for Cardiovascular Health and Safe Exercise Participation.Journal of functional morphology and kinesiology · 2026Article
- Exercise-induced ventricular changes in recreational half-marathon runners compared with marathon/ultramarathon runners.International journal of cardiology. Heart & vasculature · 2026Article
- Influence of Endurance Training, High-Intensity Interval Training, and Acute Exercise on Left Ventricular Mechanics: A Systematic Review.Journal of clinical medicine · 2025Review
- Left ventricular hypertrophy and myocardial work in amateur marathon runners.Frontiers in cardiovascular medicine · 2025Article
- Effects of Environmental Conditions on Athlete's Cardiovascular System.Journal of clinical medicine · 2024Review
- Impact of an Ultra-Endurance Marathon on Cardiac Function in Association with Cardiovascular Biomarkers.Sports medicine - open · 2024Article
- Exercise-induced myocardial edema in master triathletes: Insights from cardiovascular magnetic resonance imaging.Frontiers in cardiovascular medicine · 2022Article
Corrections and comments
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Authors and funding
10 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundControversy exists on the actual occurrence of exercise-induced cardiac fatigue (EICF) with ultraendurance exercise, as well as on whether factors such as age or training status might predispose to this condition. The present study aimed to assess the occurrence of EICF among recreational ultramarathon runners, as well as to determine potential predictive factors.
methodsNineteen male recreational runners (42 ± 12yrs) participated in a 55-km trial race at moderate altitude (1,800-2,500 m). Participants were evaluated before and after the race using Doppler echocardiography and myocardial deformation analysis. EICF was determined as a reduction >5% of either left ventricular global longitudinal strain (LVGLS) or right ventricular free wall strain (RVFWS). Demographical (age, body mass index), training (training experience, volume and intensity), competition (finishing time, relative intensity) and biochemical variables (blood lactate, creatine kinase [CK] and CK-MB) were assessed as predictors of EICF.
resultsA significant reduction in LVGLS (20.1 ± 2.1% at baseline vs. 18.8 ± 2.4% at post-race,
conclusionsUltramarathon running at moderate altitude seems to induce EICF in a considerable proportion of recreational athletes.
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Registered trials
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