I exercise regularly, and have completed a 1/2 marathon. I called my cardiologist to see if it would be ok to participate in a
triathlon. (1.5K swim, 40K bike, 10K run) The cardiologist responded that I should exercise as long as it was comfortable, but not to exert myself too much. He advised me not to do the triathlon. I have a stress echo done every year, and do very well. In addition, I have no symptoms. My research does not seem to support what this physician recommends.