Is a heart rate of 170–180 beats per minute during cycling normal?

Under normal circumstances, the typical heart rate range for cycling is 60–100 beats per minute (bpm), so a heart rate of 170–180 bpm during cycling is considered abnormal. The detailed explanation is as follows:

In adults at rest and awake, the normal resting heart rate ranges from 60 to 100 bpm. However, cycling is considered vigorous physical activity, which increases oxygen consumption and the body's demand for oxygen. To meet this increased demand, the heart naturally increases its rate to boost cardiac output, ensuring adequate oxygen supply to the body. This elevation in heart rate is a physiological and normal regulatory response. Under such conditions, a typical cycling heart rate usually ranges between 120 and 140 bpm. A heart rate of 170–180 bpm exceeds this normal exercise-induced range and is therefore considered abnormal. Such a high heart rate may indicate underlying conditions such as heart failure or other heart diseases. Therefore, if a person experiences an abnormally rapid heart rate, it is recommended to first visit a reputable hospital to determine the exact cause, followed by appropriate treatment under medical supervision, possibly including oral medications.

In summary, a heart rate of 170–180 bpm during cycling is abnormal. It is advised that individuals stop cycling immediately and seek prompt medical evaluation at a qualified healthcare facility to identify the underlying cause and receive appropriate treatment.