dd wrote:
...To truly be instructive, you need to decide what exposure you're interested in: are you looking at distance running as a risk for heart disease, or specifically running a 2:20 marathon?...
I would be interested in this group as well, more specifically; not necessarily to compare against the general population but to compare amongst other endurance athletes.
I started running 70 plus mile weeks at age 15 and carried it through to age 22 and then a three year break and cranked it back up through age 28. Sprinkled in there was quite a bit of intensity; track work, hill repeats, numerous races, etc. Then I still raced quite frequently in the years past 28 in triathlon and road racing off fewer running miles but more training hours. I would categorize the running only efforts as more difficult than when I ran a lot. There is nothing more painful than racing when you're not very fit. This has not changed even into my 50's.
Much in the way we are starting to look at the long term effects concussions have on football players I would like to see the long term effects of a lifetime of exertion on heart health.
Of course we'd have to factor in vegetable oils and all the other ills in our current food supply. So at this stage of our Nation's ill health we may be past the point of an accurate study that could link anything meaningful.