4 doctors weighed in:

I know that tachycardia results during exercise but when is it dangerous?

4 doctors weighed in
Ken Starnes
General Practice
2 doctors agree

In brief: Hard to get there

Assuming you are in otherwise good health, the generally accepted max sustained heart rate is 220 minus your age.
But many people (see tim noakes' work on the "central governor") will say that your body will stop you before you do damage. Of course, before starting any new exercise regimen you should consult your physician.

In brief: Hard to get there

Assuming you are in otherwise good health, the generally accepted max sustained heart rate is 220 minus your age.
But many people (see tim noakes' work on the "central governor") will say that your body will stop you before you do damage. Of course, before starting any new exercise regimen you should consult your physician.
Ken Starnes
Ken Starnes
Answer assisted by Ken Starnes, Medical Student
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Dr. Peter Karpawich
Pediatrics - Cardiology

In brief: If too fast

The heart rate increses in exercise as part of a normal Adrenalin increase, normally 190-200bpm in healthy younger people at peak exercise.
As exercise ends, the heart rate falls back to lower resting rates. Persistent rates over 220-250bpm, or irregular with symptoms, especially when they occur without exercise and don't slow down or stop can be abnormal.

In brief: If too fast

The heart rate increses in exercise as part of a normal Adrenalin increase, normally 190-200bpm in healthy younger people at peak exercise.
As exercise ends, the heart rate falls back to lower resting rates. Persistent rates over 220-250bpm, or irregular with symptoms, especially when they occur without exercise and don't slow down or stop can be abnormal.
Dr. Peter Karpawich
Dr. Peter Karpawich
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