1. The prevalence of knee osteoarthritis in the elderly. The Framingham osteoarthritis study;Felson;Arthritis Rheum,1987
2. Maximal isometric torque of knee extension as a function of muscle length in subjects of advancing age;Fisher;Arch Phys Med Rehabil,1990
3. Muscle rehabilitation: its effect on muscular and functional performance of patients with knee osteoarthritis;Fisher;Arch Phys Med Rehabil,1991
4. The relationships of functional capacity, pain, and isometric and isokinetic torque in osteoarthrosis of the knee;Lankhorst;Scand J Rehab Med,1985
5. Relationship of isometric knee extension torque and functional variables in osteoarthrosis of the knee;Lankhorst;Scand J Rehab Med,1982