2.6.1. Physical Function
knee arthritis, pain
KNEE ARTHRITIS
The WOMAC, ROM, and KOS-ADLs were used to measure the physical function in this study.The WOMAC, which is widely used in patients with knee arthritis (intraclass correlation coefficient, ICC = 0.92), consists of 24 subjective questions about knee joint pain and functional limitations that can be felt daily [Goniometer Biometrics (USA, 2008) was used to measure the flexion ROM of the knee joint (ICC = 0.99) [The KOS-ADL was used to evaluate knee joint function in daily life. The symptoms included six items of influence on general daily living ability. The knee joint condition has 8 (of the total 14) items that influence the ability to perform functionally specific tasks and represents a reliable scale questionnaire to identify knee joint condition and functional ability for daily living (ICC = 0.97) [