Do you know Leslie Sansone?
She has several DVD's in his program "walk at home"
There titles like "gentle walk" and "restorative walk" but they are done inside, mostly in place
and sometimes moving 4 steps forward and backward. From the testimonials it seems they do work like
normal walking would. The concept behind "walk at home" is to avoid bad weather, pollution, time to reach
a certain place where to run or excuses to avoid exercise. You just play the DVD and do your 5 to 20 mins walk.
But in my opinion is perfect for people with CFS who can still walk, because when you walk at home you can control better
your intensity and symptom and as soon as you feel spacey or sick or your heart rate increases to much, you can immediately
lay on the bed and rest. That would be impossible outside.