What causes heart pain after running 800 meters?

Generally, chest pain after running 800 meters may be caused by excessive exercise, cardiac neurosis, myocardial ischemia, myocarditis, angina pectoris, or other reasons. Patients should promptly seek medical attention at a正规 hospital and receive appropriate treatment based on their condition. Specific analyses are as follows:

1. Excessive Exercise

During physical activity, the body requires more oxygen and nutrients, and the heart must pump blood more forcefully to meet the demands of the muscles. If the exercise intensity exceeds the body's adaptive capacity, it may lead to excessive cardiac load and cause chest pain. It is recommended that patients rest immediately; symptoms usually subside after rest.

2. Cardiac Neurosis

Cardiac neurosis is a condition characterized by heart-related symptoms—such as palpitations, chest tightness, and pain—caused by an imbalance between the sympathetic and parasympathetic nervous systems. Intense exercise may trigger neurological disturbances leading to symptoms of cardiac neurosis, including chest pain. Patients may take medications such as alprazolam tablets, diazepam tablets, or lorazepam tablets under medical guidance.

3. Myocardial Ischemia

Myocardial ischemia occurs when insufficient blood supply from the coronary arteries leads to oxygen deficiency in the heart muscle. During exercise, the heart's demand for oxygen increases. If the coronary arteries are narrowed or blocked, myocardial ischemia may occur, causing chest pain. Some patients may also experience chest tightness, palpitations, or dizziness. Treatment may include medications such as metoprolol tartrate sustained-release tablets, isosorbide mononitrate capsules, or Shexiang Baoxin pills, taken as directed by a physician.

4. Myocarditis

Myocarditis is an inflammatory disease of the myocardial tissue, which may be caused by infections, autoimmune reactions, or other factors. During exercise, myocarditis can lead to discomfort or pain in the cardiac region. Patients may be treated under medical supervision with medications such as coenzyme Q10 capsules, enalapril maleate tablets, or furosemide tablets.

5. Angina Pectoris

If a patient runs 800 meters too quickly, myocardial oxygen consumption may increase significantly, potentially leading to inadequate coronary blood supply and triggering angina pectoris. Symptoms typically include chest pain, tightness, shortness of breath, and palpitations. Patients may take nitroglycerin or isosorbide dinitrate tablets as prescribed. Additional medications such as metoprolol tartrate sustained-release tablets, enteric-coated aspirin tablets, or simvastatin tablets may also be used under medical advice. In severe cases, interventional procedures or even heart transplantation may be required.

In addition to the above causes, chest pain after running could also result from heart failure, acute myocardial infarction, or coronary atherosclerotic heart disease. Patients are strongly advised to seek timely medical evaluation.