Anyway, Penny doesn't care what we call them. She just wants to eat the food she's offered. (Usually little bits of raw carrot.)
She puts her front paws up on a little stool.
I tap her left rear leg and she lifts it and I support it gently, not taking her weight, but just reminding her to keep it in the air.
Seeing she's totally focused on gobbling the food, she seems to hardly notice she has her weight on her weak leg.
I think it might be working, because she jumped from the footpath into the back seat of the car recently, the first time in months we haven't lifted her in.
I wish she didn't lick her paws, though. You can see how stained they are. We're working on that problem too.