
Originally Posted by
MuscleScience
Afib is not to serious in most cases. There can be many causes sometime stimulates, sometimes there is underlying conditions and sometimes there is no apparent cause at all. Most people are asymptomatic and never know they have it until they discover it on accident.
I stress tested an athlete one time that was an elite level endurance runner. We did a simple ECG on her and found out that she had no P wave at all. That means she didnt have any electrical activity during the correct time that the SA node of the heart should have fired. It was delayed and masked in by the ventricals so we did a few more test and found that she would go into afib when her heart rate was elevated. It was one of the craziest things I have seen but i guess not unheard of according to my mentor.