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Exercise Tachycardia

Hello,

For the past few months, I have been noticing that when I work out intensely, I begin feeling light headed and nauseous.  I went to a cardiologist and wore a Holter monitor for 24 hours and the results showed my heart rate going up to 200 while exercising (no arrhythmias, just really fast "normal" beats).  The doctor suggested I either try regulating my heart rate myself, or go on 25 mg of beta-blockers (metoprolol).  After trying to regulate my heart rate on my own, I've feel as if I can't get a good work out in and still keep my heart rate below 170 (what doctor recommended for my age).  I am a 22 year old Caucasian female. I am hesitant to try medication, but also want to be able to work out hard and gain cardiovascular fitness.  

It also seems like beta blockers interact with a lot of things.  Will I feel tired all the time at this low a dose (25 mg).  I am also a graduate student, so being fatigued in combination with no caffeine could be disastrous. At this low of a dose, do I still need to stay away from caffeine and will I feel tired?

Also, there is a note to stay away from alcohol.  I don't drink often (maybe 2x a month), but I'm very hesitant to take a daily medication and also stop drinking completely and caffeine.

Also, must I take it every day, or could I just take it when I want to have a hard workout and not have to worry about my heart rate?  If I could take it "as needed", how long until it's out of my system so I can have caffeine and drink alcohol without concern for negative side effects?

Thanks!  Sorry it's so long!
1 Responses
367994 tn?1304957193
Its not clear whether or not you have a medical problem.  If it is a physical fitness issue, you could decrease the degree of effort expended while exercising to lower your heart rate, and increase the heart's rate gradually in response to a better physical condition.

If the doctor feels you have medical problem, you can be given a stress test.  A stress test will monitor your vitals and determine the degree exertion measured in METs and your physical fitness to determine degree of exertion in an exercise program that would be appropriate for you.

How and when to take any medication should be made in consulation with your health provider.


  
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