It is advisable to record the heart rate for 60 seconds rather than for a shorter duration like 15 or 30 seconds because It is beneficial to record a heart rate for a longer duration of time, such as 60 seconds, to obtain a more accurate result, and this provides a more accurate average heart beats per minute.
Suppose if the person has an irregular heart rate which may be missed if only 15-30 seconds were recorded. That's the reason why It is advisable to record the heart rate for 60 seconds rather than 15 or 30 seconds.
Heart rate can be calculated by counting the numbers of pulse in 60 second by placing our two fingers between the bone and the tendon over our radial artery, and then multiply that number of pulses by two. The resulting number will be the heart rate per minutes.
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