Question

hrr stands for
(02.02 lc)
○ heart rate rest
○ heart rate reserve
○ heart rate resume
○ heart rate recurring

Explanation:

HRR is an abbreviation in the field of exercise physiology. It is a well - known term where HRR stands for heart rate reserve. Heart rate reserve is calculated as the difference between maximum heart rate and resting heart rate. It is used in determining exercise intensity.

Answer:

heart rate reserve