low hrt

i  am vary athletic and have a resting hrt of about 38bpm. some times it goes down to 30-32 bpm i feal tyred and when i get up i am slightly dizzy for a few seconds. why in just a matter of 24 houres can my resting hrt change so drastikly is it posobly lack of nutrition.

[Jerry_NJ]

You can't get a diagnosis here, but I can say with a HR as low as 30 it would be a good idea to get checked out by a doctor, best a cardiologist.  I believe that rate if too low to be ignored.  There are heart problems that cause low HR and while a low HR can indicate a strong cardiovascular system, 30 is too low... something in the 50s would be considered by many a very good HR for a well conditions athletic person, but I believe very few ever get in that good a condition.  The fact that you are sometimes slightly dizzy is an indication you HR, or perhaps you blood pressure, it too low to get the oxygen your brain needs.

[Wisconsin2007]

Resting heart rate can change every few hours based on all kinds of things, such as your hydration level, stress level... lots of stuff.  Sometimes my resting HR is in the 50's, other times it's in the 60's.  No big deal, either way.

However, it is a big deal if you're feeling dizzy often.  Your heart rate is pretty low, but not unheard of - but I think the dizziness warrants a call to the doctor for a visit.

[bob110]

thankeyou for the info
bob110

[grendslori]

Bob you need to see a cardiologist, the sooner the better. A HR in the 30's is NOT GOOD, rates that low can actually cause the heart to just stop beating. You need to have a pacemaker put in. If you are taking any kind of cardiac drugs, you needs to have them adjusted. Call your doctor.

[Wisconsin2007]

Whoa - slow down.  It's not unheard of to have very well trained athletes with heart rates that low.  He's a big name so his info is tossed around a lot, but Lance Armstrong's heart rate is about the same as bob110's, maybe lower, and I don't think Lance has or will be getting a pacemaker anytime soon.

The American Heart Association recommends a pacemaker when the resting HR is below 40, but as with anything there are mitigating factors.

I agree that seeing a doctor is important, but let's not scare the hell out of people if we don't need to.

[bob110]

thanks for the info. i dont think i need a pace maker eather. went to the doctor today and was tested. 37bpm back to normal for me but he is still refering me to see a cardiologist. i did some reserch and found bradycardia (slow heart rate). it sounds like what i am experiencing but they kinda rule out athelites. i looked into my records and found that since january begining of training my hrt has droped roughly 4 to 5 bpm. march has more intence training. i am hopeing that it is the parasympathetic nervouse system sloweing down hrt from over training. i would rather rest than have something wrong with me.