In my experience, I could not replicate with a borrowed chi machine (body flat on back on floor, ankles on chi machine imparting one's body a fish swimming like movement) the dramatic relief afforded by either manual shaking or the EECP machine. My guess is that the vertical movement is needed to make gravity work on enhancing blood flow.

At any rate, and more important than anything else, I would like to stress the reported longer and longer permanency of symptoms relief afforded by these "passive" form of exercising the body, if one submitts to them on a daily basis, with some parkies who have being on these trials, reporting being able to reduce their levels of medication. While it may not be the "cure", any method that relieves symptoms and reduces medications, with otherwise minimal intervention, pleases my heart darn good.