ArticleJournal of veterinary internal medicine2022
Electrocardiographic characteristics of trained and untrained standardbred racehorses.
Article in Journal of veterinary internal medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
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Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.
- The Dual Nature of Sinoatrial Node Remodelling in Athletes: A Systematic Review of Electrophysiological Adaptations and the Pathological Tipping Point.International journal of molecular sciences · 2025Pooled it
- Cardiac arrhythmia prevalence and risk factors in 24-h electrocardiograms of sedentary horses.Equine veterinary journal · 2026Article
- Mechanical properties, collagen and glycosaminoglycan content of equine superficial digital flexor tendons are not affected by training.Journal of anatomy · 2026Article
- Article
- Pilot Study: Heart Rate and Heart Rate Variability Indices in Mules Evaluated by 24-Hour Electrocardiogram.Animals : an open access journal from MDPI · 2025Article
- Validation and clinical application of implantable loop recorders for diagnosis of atrial fibrillation in horses.Equine veterinary journal · 2025Article
- Arrhythmias across the tree of life: comparative insights for human electrophysiology.Frontiers in cardiovascular medicine · 2025Review
- Article
- Preliminary study on heart response and locomotor parameters in Donkeys (Equus asinus) during exercise using fitness tracker (Equimetre).Scientific reports · 2024Article
- Histological evaluation of cardiac remodelling in equine athletes.Scientific reports · 2024Article
- Amniotic membrane, a novel bioscaffold in cardiac diseases: from mechanism to applications.Frontiers in bioengineering and biotechnology · 2024Review
- The Health Status of Horses Used for at Least Six Complete Cycles of Loxoscelic Antivenom Production.Toxins · 2023Article
- Effects of pregnancy on electrocardiographic, vasovagal tonus index, and echocardiographic variables in horses.Veterinary world · 2023Article
- Assessment of P Wave Indices in Healthy Standardbred Horses.Animals : an open access journal from MDPI · 2023Article
- Muscarinic acetylcholine receptors MFrontiers in cardiovascular medicine · 2023Article
- Cartilaginous Intrusion of the Atrioventricular Node in a Quarter Horse with a High Burden of Second-Degree AV Block and Collapse: A Case Report.Animals : an open access journal from MDPI · 2022Article
- Electrocardiographic characteristics of trained and untrained standardbred racehorses.Journal of veterinary internal medicine · 2022Article
- QT Interval and Cardiac Restitution Ratio Complexity in Standardbred Racehorses From Rest to Maximal Effort: Insights Into Arrhythmia Risk.Journal of veterinary internal medicineArticle
- Multiple Catheter Recording in Horses to Investigate Atrial Depolarization Pattern During Sinus Rhythm and Induced Premature Atrial Complexes.Journal of veterinary internal medicineArticle
- Associations between postrace atrial fibrillation and measures of performance, racing history and airway disease in horses.Journal of veterinary internal medicineArticle
Corrections and comments
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Authors and funding
13 authors at 3 institutions in 3 countries.
Funding
Abstract
backgroundLong-term exercise induces cardiac remodeling that potentially influences the electrical properties of the heart. HYPOTHESIS/
objectivesWe assessed whether training alters cardiac conduction in Standardbred racehorses. ANIMALS: Two hundred one trained and 52 untrained Standardbred horses.
methodsCross-sectional study. Resting ECG recordings were analyzed to assess heart rate (HR) along with standard ECG parameters and for identification of atrial and ventricular arrhythmias. An electrophysiological study was performed in 13 horses assessing the effect of training on sinoatrial (SA) and atrioventricular (AV) nodal function by sinus node recovery time (SNRT) and His signal recordings. Age and sex adjustments were implemented in multiple and logistic regression models for comparison.
resultsResting HR in beats per minute (bpm) was lower in trained vs untrained horses (mean, 30.8 ± 2.6 bpm vs 32.9 ± 4.2 bpm; P = .001). Trained horses more often displayed second-degree atrioventricular block (2AVB; odds ratio, 2.59; P = .04). No difference in SNRT was found between groups (n = 13). Mean P-A, A-H, and H-V intervals were 71 ± 20, 209 ± 41, and 134 ± 41 ms, respectively (n = 7). We did not detect a training effect on AV-nodal conduction intervals. His signals were present in 1 horse during 2AVB with varying H-V interval preceding a blocked beat. CONCLUSIONS AND CLINICAL IMPORTANCE: We identified decreased HR and increased frequency of 2AVB in trained horses. In 5 of 7 horses, His signal recordings had variable H-V intervals within each individual horse, providing novel insight into AV conduction in horses.
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Registered trials
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.