Why does exercise heart rate sometimes go high and sometimes low, and what should I do about it?

Occasionally high and occasionally low exercise heart rate may be caused by factors such as intense physical activity, hypertension, or cardiomyopathy. It can be improved through general treatments or medication. Specific causes are analyzed as follows:

1. Intense Physical Activity

During intense exercise, the body requires more oxygen and nutrients to meet the demands of muscles. As a result, the heart increases its contraction rate to deliver more blood to muscle tissues, thereby enhancing physical performance. It is advisable to get adequate rest and avoid strenuous exercise.

2. Hypertension

Hypertension is a common cardiovascular disease that may overload the heart, leading to myocardial ischemia and increased heart rate. Patients can take medications such as nimodipine tablets or amlodipine besylate tablets under medical supervision.

3. Cardiomyopathy

Cardiomyopathy is a disease affecting the heart muscle, which may impair cardiac function and lead to arrhythmias, often causing symptoms such as rapid heartbeat and shortness of breath. Patients may use medications such as spironolactone tablets or adenosine disodium triphosphate tablets under a doctor's guidance.

Besides the above factors, conditions such as atherosclerosis, acute pericarditis, or heart failure may also contribute. It is recommended to maintain a healthy lifestyle, including balanced nutrition and regular exercise, along with routine physical examinations.