The amount of time the heart takes to slow back down to the resting heart rate after exercising at an active rate is the recovery time.
(The amount of time; takes; to slow back down to the resting heart rate after exercising at an active rate) (The amount of time the heart takes; to slow; L:back down to the resting heart rate; T:after exercising at an active rate) (The amount of time the heart takes; is; the recovery time)
The amount of time The amount of time the heart takes The amount of time the heart takes
takes to slow is
to slow back down to the resting heart rate after exercising at an active rate
L:back down to the resting heart rate T:after exercising at an active rate
the recovery time