I have found that if I over-bowl IE: Go bowling too frequently, that my left knee and the surrounding ligaments and muscles really seriously hurt. I asked a friend to slow down a video of me bowling and it is easy to see why. I twist my knee that is on the ground during release at a really strange and intense angle and knees just weren't meant to handle that sort of "twist". This didn't affect me in my younger years but this is just one of the fun parts about getting old I guess.
Stairs: I remember skipping entire flights of stairs as a youngling. These days I would probably immediately break multiple bones on the first try. A friend of mine who is in her 40's seriously injured herself simply by "using the stairs wrong" when one of the stairs wasn't the same height as the others. She broke 2 toes.... just from using stairs!
Guess we are getting old, haha. Luckily I've never suffered any major bowling injuries. I have embarrassingly stepped passed the line and slipped on the oil before, but in my memory it was a graceful save. I found a short clip someone took of me running up the stairs....
