![]() To put some wrist monitors to the test, we got a group of volunteers to wear two different wrist straps at the same time as a professional-standard heart rate monitor. They work in a similar way to the electrocardiograms (ECGs) used in hospitals and GP surgeries. There are consumer versions of these, but professional versions are accurate and used by professional athletes and researchers. They are close to the heart and when worn with a good connection to the skin, can detect the electrical signals from the heart which control the heart beat. Some smartphone apps work in the same way, asking you to put your finger over the phone camera.Ĭhest strap monitors work in a different way. The sensors detect this and determine your pulse from that. As your blood vessels fill and empty with each heart beat, they change colour. Wrist worn monitors have sensors that assess the colour of the blood vessels near the surface. Going above your maximum heart rate could put too much pressure on your heart and could lead to health problems, so it can be really important to know what your pulse is.įor this and often just for curiosity, people do like to monitor their pulse throughout the day, whether working out or not. If you are aiming for high intensity exercise, your pulse should be 70–90% of your maximum heart rate. When carrying out exercise, use this as a marker of how intensely you are exercising. (So if you are 50 then your maximum heart rate should be 170). You can estimate you maximum heart rate with a simple calculation: To know if we are doing enough exercise or to estimate the intensity of our exercise, monitoring our heart rate can be really helpful. While our resting pulse is an indicator of our health, our pulse when we exercise is also an important measurement of our fitness. If you have a constant pulse of less than 40 or more than 120 bpm, though, you should see your GP as it may be a sign of an underlying condition. However, very fit people may have a lower resting heart rate. Healthy adults should have a pulse of about 60–100 beats per minute (bpm) when they are sitting down and resting.
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