The exercising of the lower limbs to restore muscle function and control is an important part of the rehabilitation process for many individuals after injury such as fracture or stroke.  In addition, moving the limbs passively can act to reduce pain and increase comfort for a range of clinical conditions, for instance for patients with progressive neurological conditions such as Multiple Sclerosis and Motor Neurone Disease.  The provision of all such patient support is, in particular, consistent with the NHS National Service Framework themes for older people.