Hi Nari. Maybe contact the physio school - ask to speak to someone deep into neuro and muscles - Louise Ada, Rob Herbert ... I don't know who's there at the moment - but there's been oodles of research about this issue. I heard at a research paper talk about 2 years ago that a study couldn't show that passive movements improved ROM, but the ROM didn't decline either - so although there was no evidence to support a good reason for it, there was also the worry that withdrawing treatment would be detrimental to the recipients. Contact the uni.