You can calculate your heart rate in two ways. First, you could simply count the number of pulses for a given time period and adjust that to the number of pulses per minute. Or, you could measure the cycle time of the cardiac cycle. If you measure the cycle time to be 0.800 sec, what is the heart rate?

75 beats per minute

Explanation:

To calculate heart rate from cardiac circle, all you need do is to calculate the time taken for one cardiac circle (in this case, it is 0.800secs). Then divide sixty seconds (1min) by 0.8 and whatever you get as an answer will be your heart rate in beats per minute.

So the answer to the question will be:

60/0.8 =75bpm

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