Ageing is defined by biologists as progressive changes in the tissues or organs of
the body, leading to a decline in function until death (2). The definitions of ageing
can be defined as chronological age, biological age and sociological age (2).
Chronological age is the most common method to define age that is according to the
passage of time from birth onwards. World Health Organization (WHO) generally
uses aged 60 years and over to refer to the elderly adult (16). Ageing in human refers
to a multidimensional process of physical, psychological and social change. In the
present study, the focus would be on physical changes associated with aging that
adversely affect the performance of the activities of daily living.