Osteoarthritis is characterised by progressive loss of articular cartilage, appositional subchondral bone development and osteophyte formation at the joint margins. The resulting pain, stiffness and functional limitations (Jakobsson and Hallberb, 2002) lead to diminished quality of life. The knee is a particularly common site of involvement in osteoarthritis. Osteoarthritic knee pain has been found to be associated with poor perceived health and significant disability, while psychological distress strongly associates with both pain and disability (O'Reilly et al, 1998; Sangha, 2000). Restricted knee joint mobility, in particular flexion appears to be an important determinant of disability in patients with osteoarthritis (Steultjens et al, 2000). Minor et al (1999) noted that lower extremity impairments in older adults have been linked to the reduced ability to use public transportation, climb stairs, perform household chores, shop and engage in leisure activities. Similarly van Barr (1998) noted that disability in patients with lower limb osteoarthritis is significantly related to pain and joint range of motion. Due to the chronic nature of osteoarthritis, physical modalities, lifestyle modification and patient self-management in terms of education and exercise are considered important approaches to treatment (Sangha, 2000).