Related Experiment Video
Updated: Jun 9, 2025

Using Near-Infrared Spectroscopy Wearable Devices to Identify Central Versus Peripheral Limitations During Exercise
Published on: December 19, 2024
Athlete's ECG Made Easy: A Practical Guide to Surviving Everyday Clinical Practice
Valerio Fanale1,2, Andrea Segreti1,2,3, Chiara Fossati3
1Cardiology Unit, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200, 00128 Rome, Italy.
Distinguishing athlete's heart electrocardiogram changes from disease is vital for preventing sudden cardiac death in young athletes. This guide helps clinicians differentiate normal adaptations from pathological findings, ensuring proper diagnosis and care.
Area of Science:
- Sports Cardiology
- Cardiovascular Physiology
- Clinical Electrocardiography
Background:
- Athletes' electrocardiograms (ECGs) often show changes due to training adaptations (athlete's heart).
- These physiological changes can mimic ECG findings of serious heart disease.
- Misdiagnosis in athletes carries risks, including sudden cardiac death during exercise.
Purpose of the Study:
- To provide a practical guide for differentiating normal ECG findings in athletes from pathological abnormalities.
- To aid cardiologists and sports clinicians in identifying when further cardiac investigations are necessary.
- To clarify ECG manifestations of myocardial and rhythm adaptations in athletes.
Main Methods:
- Review of current literature on athlete's ECG.
- Analysis of physiological adaptations versus pathological findings.
- Focus on differentiating borderline and abnormal ECG patterns.
Main Results:
- Athlete's heart adaptations present specific, often normal, ECG patterns.
- Certain ECG findings require careful evaluation to rule out underlying pathology.
- Clear criteria are needed to distinguish training effects from disease.
Conclusions:
- Accurate ECG interpretation is crucial for athlete safety.
- Distinguishing physiological from pathological ECG changes prevents unnecessary interventions and misdiagnosis.
- This review offers a framework for managing ECG findings in athletes.
Related Concept Videos
Electrocardiogram
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Electrocardiogram Fundamentals
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
ECG Interpretation of Rhythms
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
ECG Interpretation of Arrhythmias I: Sinus Arrhythmias
Types of Arrhythmias
Sinus Node Arrhythmias
Sinus Bradycardia: Originating from the sinoatrial (SA) node, sinus bradycardia involves slower impulses, resulting in a heart rate of less than 60 beats per minute (bpm). Causes include sleep, vagal stimulation, beta-blockers, hypothyroidism,...
Correlation between ECG and Cardiac Cycle
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
Dysrhythmias V: Evaluating Dysrhythmias

