The pulse is called the impulses of blood expelled from the left ventricle of the heart directly into the artery. Heart rate is measured in beats per minute. In normal cases, it is determined by placing fingers at the base of the hands above the radius or on the basis of the temporal bones, while counting the number of impulses per minute.
Heart rate for a person
The pulse rate depends on gender, age and general functional state of a person. Sometimes she can radically change her performance, depending on the period of the year. For example, in summer, the pulse is faster than in winter.
For an adult at rest, the normal heart rate is 60-80 beats per minute. The older the person, the lower the heart rate. For a newborn baby, the resting heart rate is approximately 130 beats per minute, and by the age of 15 it reaches the norm of 60–80 beats. For an elderly person, the pulse is considered normal - 72 beats per minute.
Physical activity, illness, stress and various kinds of experiences are important factors affecting the heart rate. With active physical activity, the pulse rises. Some diseases cause an increase in heart rate. This is the response of the human body to the need for increased blood supply to organs and tissues by increasing heart rate.
Heart rate formula
The normal pulse of a person, namely its upper limit, is determined by the formula: 180 is the person's age. The resulting number is the maximum allowed heart rate. In order to compare it with the real heart rate, it is necessary to measure the heart rate at approximately the same time in the same position for several days in a row.
An important indicator is the number of strokes for each respiratory cycle, including exhalation, pause, and inhalation. For one such breathing cycle, it is normally considered from 4 to 6 heartbeats.
If the pulse is less frequent, for example, 3 beats, or more often - 8 beats, this indicates a problem in the functioning of any organ. When the pulse is from 3 to 1 beat per one breathing cycle, this phenomenon clearly characterizes functional impairment, and is considered a rather serious reason for contacting a doctor.
The maximum allowable heart rate in relation to the breathing cycle is 9 beats. In addition, pulse uniformity is a very important indicator of human health. The pulse for a hundred beats should be even in strength, tension and fullness. The unevenness of these indicators is a clear sign of the presence of any disease.
There are also several cases when it is worthwhile to see a doctor immediately:
- if a state of tachycardia occurs, characterized by a heartbeat of more than 100 beats per minute;
- the onset of a state of bradycardia, when the pulse is less than 50 beats per minute;
- when the pulse is very weak, poorly felt and irregular.