I’m 72 yo and almost two years out from getting an Inspiris Resilia tissue valve. I have 3,700 road cycling miles so far this year and often ride in the 65–85% of MHR zone. My last echo was normal. In discussing with my cardiologist the issue of wearing out my valve with hard aerobic efforts, his view was that the relatively small percentage of time I’m in those training zones compared with the time at a low heart rate during daily normal activities isn’t of concern. Of course, I realize two years isn’t a good test of potential longevity of my valves.
