Heart rate is the number of heartbeats per unit of time, typically expressed as beats per minute (bpm). Heart rate can vary as the body's need to absorb oxygen and excrete carbon dioxide changes, such as during physical exercise or sleep.
The measurement of heart rate is used by medical professionals to assist in the diagnosis and tracking of medical conditions. It is also used by individuals, such as athletes, who are interested in monitoring their heart rate to gain maximum efficiency from their training. The R wave to R wave interval (RR interval) is the inverse of the heart rate.
Read more about Heart Rate: Measurement, Resting Heart Rate, Maximum, Target Rate, Heart Rate Reserve, Recovery Heart Rate, As A Risk Factor
Famous quotes containing the words heart and/or rate:
“The soldier’s is the trade:
In any wind or weather
He steals the heart of maid
And man together.
The lover and his lass
Beneath the hawthorn lying,”
—A.E. (Alfred Edward)
“If I die prematurely at any rate I shall be saved from being bored to death at my own success.”
—Samuel Butler (1835–1902)