there is a new device which has been trialled in the US.
nidrarls.com/for-healthcare... It basically works by stimulating nerves to the legs. Its use seems limited to the US. Prescribed by a neurologist and has trial basis.
I tried to enquire about it but website requires a US zip code. Anybody in the US involved in trails, use it or have comments.
On the basis of its action it is plausible that it may be helpful. Need to get wider distribution.
Thanks for any info.