Comparison of isometric and Pilates exercises on Knee pain and quality of life in women with Knee Osteoarthritis

Marziye Taleb Najafabadi, Reza Mahdavinejad, Gholam ali Ghasemi


Knee is the largest and the most complicated joint in your body that in addition to being moving has a kind of stability role .Since it is exposed to direct hits it is mostly peculiar to the outbreak of osteoarthritis. Excess use of the knee and its repeated injuries leads to the weakness of the knee and it also causes the reduction of the power of Quadriceps femur muscle. For this reason the knee is the most problem part of the body for spread of this disease. Strengthening the Quadriceps femur muscle plays an important part in prevention and improvement of knee osteoarthritis. The purpose of this study was to compare the effect of isometric and Pilates exercise on pain and physical and mental aspects of quality of life in women 40 to 65 years with knee osteoarthritis.


40 female patients with knee osteoarthritis were selected randomly and divided into two groups. Pilates exercise, (n=20,mean age 54/8 ± 7/1 years, height 159/ 8± 6/4 cm and weight 67/1 ± 14/7 kg ) and isometric exercise (n=20, mean age 56± 5/2 years, height 161/25 ± 7/5 cm weight 70/15 ± 9/7 kg ) were used . Before beginning an exercise, the pain visual scales (vas) were used . For physical and mental aspects of quality of life questionnaire SF36 was used. Both exercises groups were executed for 8 weeks, 3 times per week and each session 1 hour. After 8 weeks training, both groups were assessed. Statistical analysis using analysis of covariance, significant at P <0/05 was performed.


The results showed that in both Pilates and isometric group’s decreased pain and as well as improving the physical and mental aspects of quality of life. There is no significant difference between both methods of training as well as the size of the improvement disease in patients with osteoarthritis of the knee joint.


Both methods reduce the negative effects of knee osteoarthritis and both exercises can reduce pain and also improved quality of life.


Isometric exercises; Pilates exercises; knee osteoarthritis; pain; quality of life

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