Comment by toss1

Yup, +1 for cycling! For me, it's some ankle cartridge destruction from an old fracture that finally put a halt to my formerly extensive trail & XC running & recreational racing. But cycling is coming back to the core of my exercise program (Mountain/trails: really miss road biking but traffic & drivers' attitudes seem to hazardous now). And not expensive either - plenty of bikes on Craigslist good enough to not give you bad habits and still get good exercise, even decade+ old race bikes.

It is really all about working with what capabilities you still have, and maximizing those. Even that may provide enough healing & fitness to get back to a bit of previously constrained activities.