Know what your talking about regarding leg and arm injuries. I know it was nothing serious, but back in college I got a deep thigh bruise on my right leg when I dove for a loose ball and hit another guy's knee. The next game, I got kneed pretty hard in the same spot, and no amount of Ben-Gay, etc. helped after that. With the high pedals on the truck stopping became a real chore.
I also am fighting through two injured shoulders (the left one was so much fun, I decided to pop the right one a couple of weeks later). I don't have problems turning the steering wheel, much to my surprise, but shifting is somewhat painful.
I also have done damage to both knees and ankles from sports, goofing around, and just plain accidents. A few years ago, it got to the point that I had to give up serious hiking, and I've put on about 50 extra pounds since, which of course makes my knees hurt even more.
About the only thing left for me is working on the truck. Hopefully, I will get better at that than I was at sports.