I've been getting most of my exercise from cycling and plain old walking recently.
I'm sure if I started running the shin splints (and lower back problems) would come straight back, even though I'm 2-3 stone lighter than I was last time I tried running.
I could only ever run on a treadmill or grass, if I tried to run on any kind of hard surface it was instant agony. At that point, it's really not doing you any good! :lol: