Science Reference

Heart rate

Heart rate is a term used to describe the frequency of the cardiac cycle.

It is considered one of the four vital signs.

Usually it is calculated as the number of contractions (heart beats) of the heart in one minute and expressed as "beats per minute" (bpm).

See "Heart" for information on embryofetal heart rates..

For more information about the topic Heart rate, read the full article at Wikipedia.org, or see the following related articles:

Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Heart rate at Wikipedia.org. See the Wikipedia copyright page for more details.

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