What has the American Heart Association established as a normal heart rate for adults in beats per minute, or BPM?

A.) 70 - 100 BPM

Explanation:

If you’re sitting or lying and you’re calm, relaxed and aren’t ill, your heart rate is normally between 60 and 100 BPM.

Also, a resting heart rate of fewer than 60 BPM qualifies as bradycardia.

And for adults, a heart rate of more than 100 BPM is considered too fast.

So the answer would be A.) 70 - 100 BPM

Hope this helps you out! : )

which ever one is showing doing the same exercise in time intervals such as 30 seconds or a minute several times.