They kick butt! You can use them partial weight bearing open-bottom up- kinetic chain (involved extremity on scooter), or closed-top down- kinetic chain (involved extremity on the ground). Of course you can do the same thing with towel slides, but the scooter adds a little instability to create a proprioceptive effect. I like the ones that have holes in the middle so I can attach elastic bands for more resistance. Give it a try!