__Abstract__ A person who suffers disability experiences difficulty or inability in performing the basic activities with regard to daily living. In general the risk of disability increases with age and constitutes a common health problem among the elderly [1].1ncidence rates in the literature for disability range from 4.6% to 46% depending on the length of follow-up and population characteristics [1-6]. Moreover, physically disabled elderly have a higher risk of dying or being institutionalised [7]. Maintenance of physical function, which represents the absence of disability, has been mentioned by researchers as one of the criteria of successful aging [8]. Disability is also to some extent inversely proportional to quality of lif...