Getting up after a fall can sometimes be a challenge. I sometimes use our stairs to get my legs below me. Here's a video with some additional ideas.
https://www.youtube.com/watch?v=4ETgQD8QhZs
However, this person still has full use of their legs. My legs don't often bend like that.
Getting up
Re: Getting up
Great video Arthur love the creative thought 
Had ms for 28 yrs,
8.5 EDSS
SPMS, 54 yrs old
Taking it day by day
8.5 EDSS
SPMS, 54 yrs old
Taking it day by day