# Introduction To Heart Rate

Introduction to Heart Rate
60 second Counts
6 second Counts
o Carotid Pulse:_____
o Carotid Pulse:_____
My Resting Heart Rate (RHR) is ______
Karvonen Formula
Definition: The Karvonen Formula is a mathematical formula that helps you determine your target
heart rate zone. The formula involves using your maximum heart rate (MHR) minus your age to
come up with a target heart rate range (which is a percentage of your MHR). Staying within this
Below is an example of the Karvonen formula for a 14 year old person with a resting heart rate of
65 beats per minute (*to get your resting heart rate, take your pulse for one full minute when you
first wake up in the morning or after you've resting for a while). This formula also includes an
updated calculation of
maximum heart rate
(the previous formula was 220 - age, which has now
been shown to be inaccurate.
206.9 - (0.67 x 14 (age)) = 198
198 - 65 (resting heart rate) = 133
133 * 65% (low end of heart rate zone) OR 85% (high end) = 86 OR 113
86 + 65 (resting heart rate) = 151
113 + 65 (rhr) = 178
The target heart rate zone for this person would be 151 to 178
206.9 – [0.67 x (age)] = _______=MHR
_____(MHR) - (______ RHR) = _______(HRR)
_____(HRR)* 65% (low end of heart rate zone) or 85% (high end) = ____LOW or ____HIGH
(LOW) +
(RHR) = ____ low end of target heart rate
(HIGH) +
(RHR) = _____ high end of target heart rate
The target heart rate zone for me is ________ to __________.
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