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/minute, and the ideal heart rate should be 55 ~ 70 beats/minute (athletes' heart rate is slower than that of ordinary adults, generally about 50 beats/minute), which may cause individual differences 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.
Pulse is the palpable arterial pulse on the human body surface. The pulse and heartbeat of normal people are consistent. Normal adults have 60 ~ 100 beats per minute, often 70 ~ 80 beats per minute, with an average of about 72 beats per minute. Older people are slower, ranging from 55 to 60 times per minute.
Pulse rate is affected by age and sex. Fetal pulse rate is1160 beats per minute, infant pulse rate is 120- 140 beats per minute, and infant pulse rate is 90- 100.
Extended data
Formation and spread
The formation of pulse depends on two basic conditions.
1, relaxation and contraction of the heart.
2. Expansibility and elasticity of arterial wall.
Because the heart contracts and relaxes, the intra-arterial pressure rises and falls; Because the arterial wall is rich in elastic fibers, the rise and fall of arterial internal pressure can start from the aorta in the form of pulse wave, spread rapidly along the arterial wall to the branches of the artery, and finally reach the end of the arteriole.
Pulse wave propagation velocity and blood flow velocity are two completely different physiological phenomena.
When the ventricle contracts and ejects blood to the aorta, the long blood column flows along the branches of the arterial system at a speed of 0.2 ~ 0.5 meters per second, with the fastest flow velocity in the aorta and the slowest flow velocity to the capillary network of arterioles, which can be slowed down to stagnation. The propagation speed of pulse wave varies with the elasticity of the arterial wall.
The aortic wall is rich in elastic fibers, so its expansibility and elasticity are the greatest, and the propagation speed of pulse wave is the slowest, generally 3 ~ 5 meters per second. Medium-sized arteries, such as radial artery and femoral artery, have less elastic fibers, less expansibility and elasticity, and the pulse wave travels faster, about 7 ~ 10 meter per second. The elasticity of arterioles becomes smaller and the propagation speed is obviously accelerated, which is about 15 ~ 35 meters per second. When the artery is hardened, the pulse wave propagates faster.
People's Network-Self-sensing pulse can monitor heart condition.