3.3. Questionaries
pain
The JKOM questionnaire consists of a total of 25 items: Q1 to Q8 for pain and stiffness in knees, Q9 to Q18 for conditions in daily life, Q19 to Q23 for general activities, and Q24 to Q25 for health conditions. Answers for each question were chosen from a scale of 0 to 4: 0 for no pain at all or good condition, and 4 for most severe or bad condition. Only four items with significant changes in scores were observed during the study period, and the results are shown in 