I had an ECG yesterday as part of my annual physical. Looks like I manage to have
1) Bradycardia
2) First degree AV block (PR interval over 200ms, in my case 226ms)
3) Early repolarization on the v4-v6 leads (lateral early repolarization) -- this is the good sort of early repolarization.
4) QTc is a bit long, but not abnormal. (Actually, long QTc seems quite common, unclear to me what is considered LQTS, I think LQTS is manifested in ways besides long QTc.)
5) QRS dur is a bit long, but not really (i.e. I've seen reference values up to 100ms and up to 120ms, indeed the mean population value seems to be pretty close to 100ms).
All this, though an 'abnormal' EGC, especially the long LP duration, appears to be very normal and has no adverse consequences for a distance runner, all due to 'strong vegal tone'. See, for instance, Recommendations for interpretation of 12-lead
electrocardiogram in the athlete, European Heart Journal, 2010:

And I've not run for now about 4 weeks due to a ITBS issue, so this is my ECG after quite a bit of deconditioning. Hope I can resolve the ITBS soon, I am doing exercises.
I'm omitting links for now, since I don't have time to put them in. More later, don't have time to put up a serious post now. This is mostly a marker for later posting.
It would be interesting to know what my paternal grandfather's arrhythmia, the one that most likely killed him at age 65, actually was in detail. Supposedly his brother had it too, but he got a pacemaker and live to a much older age (my grandfather, or his wife, appears to have turn down the pacemaker).
