The higher the living standard, the more and more we pay attention to health, and physical exercise has gradually become a part of people's life. Running is the most common form of exercise for people, but many people only know about running, but they don't know anything about heart rate management while running. Heart rate is an important indicator that reflects human health. Knowing the heart rate status in real time during exercise and choosing a suitable heart rate range for exercise can better grasp the exercise intensity and improve the exercise effect.
Many popular heart rate monitors on the market or fitness smart watches with heart rate monitoring function have heart rate measurement functions, and heart rate chest straps and arm straps are also common heart rate measurement tools. These smart watches are not just simple heart rate monitoring, but these smart watches are more inclined towards health monitoring and monitoring. In addition to heart rate monitoring, there are HRV, ECG, pulse rate, sleep apnea monitoring, blood oxygen monitoring, blood sugar monitoring and other functions.
Smartwatches have moved away from the simple monitoring of steps, calories, etc. Now smart watches have turned to monitoring human health as the main direction.
Heart rate monitors and smart watches generally use photoelectric measurement. When a certain wavelength of light is continuously irradiated on the skin, the blood flow through the wrist will vary with the beating of the heart. The intensity of the reflection changes as the heart beats. When the heart contracts, blood is pumped out, and more blood flows through the wrist. At this time, the absorption of light by the blood increases, and the reflected light decreases accordingly. When the heart relaxes, the blood flow at the wrist decreases, and the absorption and reflection of light by the blood will change accordingly. The light-sensitive sensor in the health fitness smartwatch receives the change in the intensity of light reflection, thereby generating different electrical signals to determine the beating frequency of the heart.
The light emitted by the heart rate monitor and the smart watch is green. Compared with the red color of blood, green light can achieve a larger absorption rate, which increases the variation of the light reflection intensity, which is more useful for detecting blood flow. Sensitive, making it more accurate to judge the heart rate. This kind of photoelectric watch has strict requirements on the state of the skin. When there is sweat or the contact between the watch and the skin is not close, it is easy to cause the error of the measurement result to increase. The photoelectric measurement method is suitable for the measurement of resting heart rate and the movement with relatively stable heart rate, such as running at a constant speed.
Health fitness smartwatch can monitor the heart rate well when people are running, and such monitoring can better prevent the occurrence of sudden heart disease.