Heart rate calculation formula

The specific calculation formula of exercise heart rate is (220- actual age) ×0.6= minimum exercise heart rate, and (220- actual age) ×0.8= maximum exercise heart rate.

The method of calculating ECG heart rate is as follows:

1, formula method: the basic formula for calculating heart rate on ECG is 60 divided by RR interval, which is the highest wave on ECG, that is, R wave. The distance between two R waves is not only the time limit between two R waves, but also the patient's heart rate when 60 is divided by the time limit.

2. Simple calculation method: each small cell on ECG represents 0.04ms in the horizontal grid, 1 vertical grid represents 1mV, and 5 small grids represent 0.2ms.. If the RR interval is 3 cells, then dividing 300 by 3 is 100 beats/minute. If there are six, divide 300 by 6, which is 50 times/minute. If there is only 1 cell, the patient's heartbeat is 300 beats per minute. If there are two squares, 300 divided by 2 is 150 times/minute;

3. Counting seconds: 5 squares is 1 second, and after counting for 6 seconds, multiply it by 10, which is the heartbeat of 1 minute. It is used to calculate the heart rate when the heart rhythm is irregular.

Heart rate refers to the number of heartbeats per minute of normal people in a quiet state, also known as quiet heart rate, which is generally 60 ~ 100 beats per minute, and may vary among individuals due to age, gender or other physiological factors. Generally speaking, the younger the age, the faster the heart rate, the slower the heart rate of the elderly than the young, and the faster the heart rate of women than men of the same age. These are normal physiological phenomena.

In a quiet state, the normal heart rate of adults is 60 ~ 100 beats/min, and the ideal heart rate should be 55 ~ 70 beats/min (the heart rate of athletes is slower than that of ordinary adults, generally about 50 beats/min).