totally depends on th amount of strain and effort and time at increased heart rate you are putting into the workout. i can do a full body workout and never break 80 in pulse or 100 in rate.
So, my experience says---
Just break a sweat and then tell us what happens.... hypotheticals are for mental masterbators!!! Building muscle, and endurance are for ....nevermind.
ok,,, i will log off now
FF'er