Unfortunately, I am very immobile of my own choosing! My first husband and I used to speed walk 4 miles in an hour back in 2002. I would love to go back in time and continue that! But, alas, life changed and we lost the motivation. Now I live right on a busy highway and would not dare to walk on it, even though some brave souls do. And even though I have a place I could go about 5 minutes from the house. I have no motivation. One of the things that helped us in 2002 was that we walked out our door and the exercise began! We lived about a mile from the track and had a nice sidewalk! The walk there and back was the warm up and the cool down.
The only exercise I get now is the housework!