Many people buy a gel seat, to add to it. I heard they are comfortable and removable. They cushion your hind end.
I have a manual chair, but not much arm strength, and a small house scooter that comes comes apart to travel. When in relapse I have used both. Or I use a store scooter when I needed to.
Remember my relapse used to last 6 to 8 weeks. If I have to go somewhere or to the doctors I use them with someone pushing my chair or taking apart my scooter. I don't have a van.
Since LDN I haven't needed either, but they are there if I do need them. We never know, right?
I did hear that Medicare won't pay for a chair unless you would be in bed if you didn't have an electric chair. If it lets you get up and go around your house. Need a doctors script for it too.
Not for outside use, but they do have ones with big tires and more power to use out of doors. Will they pay for these? I don't know. Rules change.
As for transferring, they sell a transfer board. Put it on the electric chair and couch. and slide over on it. Same in a van seat. The toilet you go on backward. Face the back of the toilet, using rails. Roll right up to it and pull on the back rail or side rails.
I hope this may help. Others will know better than I do.
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