You might try the windtunnel as a sport though, you could ask your doctor about that.
As a new jumper you also tend to fly into burbles and have mid-air collisions so there is that risk as well.
However even the tunnel shouldn't be considered a non-impact sport. You can have collisions or break bones in the tunnel, as well.
If you have any major medical condition like the one described above, I would steer clear. I would however ALSO ask them (doctors) if they couldn't just go in there and take that sucker out, which would open this sport back up to you :) :)
(This post was edited by 3mpire on Mar 15, 2012, 1:01 PM)