Sudden Spike in Heart Rate While Exercising: What It Means, What to Do?


A sudden spike in heart rate while exercising is known as Tachycardia.

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Exercise leads to a ‘coronary artery steal phenomenon’ caused by the coronary fistula, thereby producing ventricular tachycardia.  [Source: National Health Medicine]

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Ventricular tachycardia is a heart problem (arrhythmia) caused by irregular electrical signals in the lower chambers of the heart.

A coronary fistula is a connection between one or more of the coronary arteries and a cardiac chamber.[Source: National Health Medicine]

Overexertion or pushing oneself too hard during exercise can also trigger tachycardia.

Some people with tachycardia have no symptoms, and never experience complications. However, tachycardia can increase the risk of heart failure and sudden cardiac arrest. [Source: Medical News Today]

If you experience tachycardia, it is important to stop exercising immediately and rest.

Monitor your heart rate and check for any other symptoms such as chest pain or difficulty breathing.

Gradually increase the intensity and duration of your exercise routine to prevent tachycardia from over-exertion.

Incorporate aerobic and strength training exercises in your routine to help improve cardiovascular fitness and overall health.