What does HRR stand for?
HRR stands for "Karvonen/heart rate reserve"
How to abbreviate "Karvonen/heart rate reserve"?
"Karvonen/heart rate reserve" can be abbreviated as HRR
What is the meaning of HRR abbreviation?
The meaning of HRR abbreviation is "Karvonen/heart rate reserve"
What does HRR mean?
HRR as abbreviation means "Karvonen/heart rate reserve"