Sinus tachycardia and training

Oh also, I was cleared by a cardiologist. Which confuses even more.

bump

See an EP (electrophysiologist) and see about a cardiac workup that includes a stress echocardiogram., They'll attempt to pin your heartrate on the treadmill, and then take a look at your heart at work (including structure etc). It's your best bet, and clearance after that will have you feeling more comfortable and confident. Or you'll be told of whatever limitations you may have. Good luck.....be safe.

Kid,

You lowered your electrolytes by drinking too much water.

You worried too much about having too little water, and not enough about having too much water. So really, you got yourself into trouble. You gotta be careful.

You are probably low in magnesium. Magnesium will turn down your heart's sensitivity to adrenaline. The bigger hazard is irregular heart rate. Show your mom this link:

http://www.ncbi.nlm.nih.gov/pubmed/11105328?ordinalpos=22&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DefaultReportPanel.Pubmed_RVDocSum

And I also want you to think about eliminating caffeine.

As for the training, you might want to stick to steady paced running for a time, nothing harder than somewhat hard, until you feel your problem (and your fitness) is improved. As a HS runner at 1045, you have plenty of room for improvement in fitness without interval training. That feeling you experience, which you attribute to excess blood lactate, is more like sensitivity in the pain receptors in your muscle, which would be a common side effect of low magnesium. Your legs would become more sensitive to the touch and you might also feel as though they have trouble relaxing once exercise is over.

email if you have more questions.

dsrunner@juno.com

when i saw the cardiologist,he gave me a stress test,and he said i was perfectly fine. The heartrate thing only happens when I'm running. It never happened on an elliptical or bike. Today, I took an hour easy, and by the end I was up at 190. Is there merit in taking 3 days completely off? Also, the magnesium thing doesn't make sense because every morning I take a multivitamin along with a Calcium/Magnesium/Zinc supplement.

You might be attentive to whether you just have an elevated heart rate or if it is also out of sync. Atrial fibrillation sometims feels like a racing heart beat, and your symptoms of fatigue while running are consistent with afib. I had intermittent a-fib for many years and had many EKG's and stress tests all coming back negative. Unless you are having an episode while they are testing your test will look fine.

Squid, were you able to still train. How did you fix it?

Your problem could be psychosomatic. Not to say it's not real but it's possible your experience has made you hypervigilant about your heart. Anxiety can produce all kinds of weird physical symptoms. If you've had all the tests and gotten an OK from a cardiologist, you're probably just fine.

i have had the same problem since 2001 and am on digoxin. i've had all of the tests time and time again. it's my understanding that there is nothing you can do about it if you don't have a condition that makes you a candidate for ablation surgery (i am not a candidate). the digoxin keeps my heart rate at a decent level so i can still run but i can't race all out anymore. but at least i can still run! try to see a doctor that understands runners because i've been told a number of times that i should just switch to something else that's not so cardio-intensive.

To the OP I had a very similar situation....trained wicked hard over the summer and went into my jr year of college in the best shape of my life. I overtrained a bit and this is how I originally noticed things going wrong. Heart rate kept skyrocketing but only during workouts or races (there for I never had symptoms) Also it seemed to get worse from heat. So I eventually got an EKG as part of other tests and found out i had non symptomatic WPW (wolff parkinson white syndrome). Essentially it is an extra electrical connection in the heart so it can create a circular motion and the rate can get out of hand. I have been able to simply monitor it and eventually when I got over the mental aspect of it I have been able to race fine (without an ablation yet).

I suggest you get an EKG done and all other tests and just see what exactly it is and what if anything you should/can do about it.

Best of luck, but if you are anything like my case, as long as you dont over do it you should be fine.

had a tachycardia that ruined a number of races over a

period of 5 years. finally cured it in a week by giving

up diet pop.