Subjects were excluded if they had severe cognitive impairment, rapidly progressive or terminal illness, acute illness or unstable chronic illness, myocardial infarction or a fracture of the lower limb, within the six months prior to inclusion.
Subjects wereexcluded if they had severe cognitive impairment, rapidlyprogressive or terminal illness, acute illness or unstable chronicillness, myocardial infarction or a fracture of the lower limb, withinthe six months prior to inclusion.