A might bewildered...
Join Date: Oct 2011
Bikes: Bacchetta Giro ATT 26; Lemond Buenos Aires
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Wow! I've always admired your dedication to cycling, and the fact that you are able to do so with significant medical issues is a source of great encouragement to me!
I broke down and got my stress echo last week, primarily because I just wasnt feeling well and I wanted to know if my heart was the problem. I passed the stress part without difficulty, but the echo clearly showed moderate mitral regurgitation, meaning that when my heart beats, a sizable portion of it leaks backwards. This would tend to reduce my cardiac output compared to what I might have been capable of with a nonleaky valve.
Whether this affects my VO2max is a question to which I don't know the answer. I would guess that it does. Just a guess.
I asked the doc if I had to stop cycling, and he said no, but that I couldn't compete *chuckle*. I was flattered that he thought I was capable of it.
I got into the literature and found this graph, which I reproduce without permission:
Dynamic refers to how fast your heart has to beat, and static refers to how much resistance it must beat against. Interestingly, cycling scores high in both, as you can see.
For me it's a weird win-win situation. As best I can tell, I don't need to limit my riding. OTOH, no one expects a cardiac patient to go fast. It's a built in excuse for just being slow.
It makes me feel better about my Strava rankings as of late. My only KOM is up my driveway now.
Signature line for rent.