Question

Heart rate reserve is use to calculatea.target heart rateb.training intensityc.injury indexdo.workout duration

Answer 1

B. training intensity

Step-by-step explanation:

Heart rate reserve (HRR) is the difference between resting heart rate (HRrest) and maximum heart rate (HRmax). Heart rate reserve is used when determining exercise heart rates. The Karvonen formula is used to calculate exercise heart rate at a given percentage training intensity.

Answer 2

the answer is b.training intensity