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A heart rate monitor (HRM) is a personal monitoring device that allows one to measure/display heart rate in real time or record the heart rate for later study. It is largely used to gather heart rate data while performing various types of physical exercise. Measuring electrical heart information is referred to as electrocardiography (ECG or EKG).
Many studies have assessed the accuracy levels of these wearable devices to measure and monitor heart rate and have found these devices to provide valid results to users. [ 12 ] [ 13 ] In one study 50 volunteers aged 18–32, continuously walked and ran on a treadmill for 30 minutes.
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Wearable heart rate monitors for athletes were available in 1981. [4] Improvements in technology in the late 20th and early 21st century made it possible to automate the recording of fitness activities, as well as to integrate monitors into more easily worn equipment. The RS-Computer shoe was released in 1986.
In 1975, there was no accurate way to measure heart rate during training, and the idea of a wireless, portable heart rate monitor was conceived on a cross-country skiing track in Finland. [2] Polar was founded in 1977, and the company filed its first patent for wireless heart rate measurement three years later.
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