1. Haq I, Murphy E, Dacre J. Osteoarthritis. Postgrad Med 2003;79:377-383.
2. Thomas KS, Muir KR, Doherty M, Johnes AC, O'Reilly SC, Bassey EJ. Home based exercise programme for knee pain and knee osteoarthritis: randomised controlled trial. BMJ 2003;325:752-756.
3. Halbert J, Crotty M, Weller D, Ahem M, Silagy C. Primary care based physical activity programs: effectiveness on sedentary older patients with osteoarthritis symptoms. Arthritis Rheum 2001;45:228-234.
4. American Geriatrics Society Panel on Exercise and Osteoarthritis. Exercise prescription for older adults with osteoarthritis pain: consensus practice recommendations. A supplement to the AGS Clinical Practice Guidelines on the management of chronic pain in older adults. J Am Geriatric Soc 2001;49:808-823.
5. Roddy E, Zhang W, Doherty M. Aerobic walking or strengthening exercise for osteoarthritis of the knees? A systemic review Ann Rheum Dis 2005;64:544-544.