is the number of beats per minute and is the same as your pulse ... This will give the correct formula. If you want SV, cover SV with your finger and you are left with CO/HR.

Locations include wrist, neck and upper arm. The pulse rate is expressed in beats per minute. To measure your pulse rate, count the number of beats in a set period of time, eg 30 seconds ...

If you’ve ever worried about your heart rate during exercise being too high or too low, you’ll want to read this. Your "heart rate zones" might be completely wrong. Not only are zones defined ...