Exercise and Heart Rate

[anandbharti]

Hello Doctor,  I am a 50 year old male with CABG ( 2 vessels), ejection fraction 30%, with ICD &  ID Diabetic. I Take Metaprolol (75 mg), Crestor (20 mg), Lissinopril (20 mg), Synthyroid (125 mcg), aspirin (80 mg) and insuln ( on pump average 65 units a day)
I am reasonally active in full time employment.
My question: When I exercise on Elliptical machine on cardio setting , my pulse rate never goes above 110 . is this something to do with beta-blocker ? If I continue with the exercise what would be the consequence ? Would my muscles get cramps.
Thank you

[anandbharti]

Thanks for sharing your observations. Those were useful.

[RadioAstronomyObserver]

  I was told of such, Bata blockers wont allow the heart to work as hard as before.  While in the heart rehab (as mentioned in another of my posts with a follow up question) Depending on when I took the pills said weather or not my heart would reach the target rate.

[erijon]

Sorry, no doctors on this board, you can post on the expert forum to ask a doctor. Having said that, according to the Mayo Clinic, beta blockers can prevent the normal heart rate response during exercise. You may find you need to adjust you target heart rate goals accordingly.

I went on a beta blocker for my blood pressure breifly and asked to go back to my old medication because of the same thing you describe. Given your medical history a beta blocker may be the best choice so you should discuss your options with your cardiologist.

Good Luck!

Jon