I'm one week and 3 days post op. I started walking on the treadmill two days ago. The first time I went very slow and ended up walking 1/2 mile. The second time I walked faster and I stopped at .75 miles. I'm not getting tired and I could go on quite a bit more. I do hold on the handle bars for extra support. I could easily walk for miles.
I use to run 6 miles a day until my injury. I then slowed down to walking and was walking 5 miles a day up until surgery.
How much is too much? I don't want to overdo it. I did ask the surgeon in the hospital, but he really didn't say how far I should be walking. He told me to wait a week before going on the treadmill and walk outside if possible. I couldn't walk outside with the ice and snow on the roads.