pulsimõõtur

A pulsimõõtur, also known as a heart rate monitor, is a device used to measure an individual's heart rate. It typically works by detecting the electrical signals generated by the heart's contractions or by measuring changes in blood volume in the extremities. These devices are commonly worn as wristbands or chest straps.

The most prevalent method of measurement is through photoplethysmography (PPG), which uses light to detect blood flow changes. A pulsimõõtur with PPG emits light into the skin and measures how much light is absorbed or reflected. As the heart pumps blood, the volume of blood in the capillaries changes, altering the light absorption. By analyzing these changes, the device can calculate the pulse.

Another method involves electrocardiography (ECG), which directly measures the heart's electrical activity. This is often implemented in chest strap monitors. Electrodes on the strap detect the electrical impulses that trigger heart muscle contractions. These impulses are then processed to determine the heart rate.

Pulsimõõturid are widely used in various contexts. Athletes and fitness enthusiasts utilize them to track their training intensity, monitor cardiovascular health, and optimize performance. In medical settings, they can be employed for diagnostic purposes, to monitor patients during procedures, or to assess the effectiveness of treatments. Modern smartwatches and fitness trackers often incorporate pulsimõõtur functionality as a standard feature, providing users with continuous or on-demand heart rate data.