I started running the other day. I can only go about a 1/4 mile, but at least it's a start. I was cycling, but I was always by myself. At least when I walk, then run I can take the dog. I'll continue to cycle, but this adds another layer to my exercise routine.
The running is a bit painful as I have nerve damage in one foot, and that same foot has had the tendons reattached. I have a pin in it holding things togethor. But I figure it's going to hurt if I run or if I don't.
Plus, the running gives me another exercise to do. They say you need to mix up your exercise as your body becomes accustomed to the same routine and your weight loss will slow. It's best to change things around a bit. AND, my remaining dog is happy to get out!