Is heart rate 56 normal but healthy

Heart rate is an important criterion for measuring whether the human body is healthy. Generally speaking, a normal adult's heart rate is between 60 and 100 beats per minute. If the heart rate is 56, which is lower than 60 beats, this is a manifestation of sinus bradycardia. It may also indicate that there are certain problems with your health and you need to go to the hospital for examination in time. Below, I will introduce you to the relevant knowledge about heart rate in detail.

1. Normal heart rate

The heart rate of a healthy adult is 60 to 100 beats per minute, most of them are 60 to 80 beats per minute, and women are slightly faster; children under 3 years old are often above 100 beats per minute; the elderly are slower.

2. Manifestations of Arrhythmia

A heart rate of more than 100 beats per minute in an adult (generally not more than 160 beats/minute) or more than 150 beats/minute in an infant is called sinus tachycardia. It is common in normal people after exercise, excitement, agitation, smoking, drinking and strong tea. It can also be seen in fever, shock, anemia, hyperthyroidism, heart failure and the use of atropine, epinephrine, ephedrine, etc. If the heart rate is between 160 and 220 beats per minute, it is often called paroxysmal tachycardia.

A heart rate lower than 60 beats/minute (generally above 40 beats/minute) is called sinus bradycardia. It can be seen in people who engage in heavy physical labor for a long time and in athletes; pathologically, it can be seen in hypothyroidism, increased intracranial pressure, obstructive jaundice, and overdose or poisoning of digitalis, quinidine, or propranolol. If the heart rate is less than 40 beats/min, atrioventricular block should be considered.

A heart rate that is too fast, exceeding 160 beats/minute, or less than 40 beats/minute, is mostly seen in patients with heart disease. Patients often experience palpitations, chest tightness, and discomfort in the precordial area. A detailed examination should be conducted early so that treatment can be targeted at the cause.

The amount of blood output from the ventricles to the arteries each time the heart contracts is called the stroke volume, and the amount of blood output by the heart per minute is called the minute volume. The stroke volume of a normal person in a resting state is 70 ml. If the heart rate is calculated at 75 beats per minute, the minute volume is approximately 5250 ml. The amount of cardiac output is an indicator of the heart's working capacity.

3. Notes on heart rate check

Requirements during the examination: The patient should actively cooperate with the doctor during the examination, should not do strenuous exercise one hour before the examination, and should not be overly nervous during the examination to avoid affecting the results.