Effects of isometric and isotonic quadriceps exercise on patients with knee osteoarthritis

Objectives: To study the effects of isometric and isonotic quadriceps exercise on patients with knee osteoarthritis(OA). Methods: Thirtyfive patients underwent isometric and isotonic quadriceps exercise,each for 1 month.And then muscle strength and functional performance of the lower extremity were measured before and after the treatment. Results: After the treatment, muscle strength increased significantly,functional performance of the lower extremity such as walking,climbing stairs and rising from chair were significantly improved, and knee pain reduced markedly. Conclusions: This method was a convenient,safe,practical and effective method to knee OA.