Cornelius, NC
A 32-year-old male asked:

How do you get the same cardio benefits when on beta blockers if you cant get your heart rate yp to aerobic zones?

1 doctor answer3 doctors weighed in
Dr. Milton Alvis, jr
Preventive Medicine 43 years experience
↑ed rate is only a : sign of ↑ed adrenaline/noradrenaline vs. acetycholine from brain; ↑es heart rate, but not required to achieve benefit of aerobic exercise. Beta blockers = adrenaline/noradrenaline analogues which do not stimulate the beta receptors for these neurohormones yet interfere with their reaching the beta receptors (thus called blockers). Too much adrenaline/noradrenaline damages/kills heart muscle cells.
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Last updated Nov 28, 2017


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