IRCT20220428054688N1 IRCT 2022-09-16 Esfahan University of Medical Sciences Study effect of the soft medical insole with lateral wedge of knee osteoarthritis Study effect of the soft medical insole with lateral wedge on reducing pain, improving performance and quality of life of the elderly with knee osteoarthritis 2022-10-02 anticipated 30 Complete https://irct.ir/trial/63270 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Other design features: Evaluation of the effect of soft medical insole with lateral wedge on knee osteoarthritis only in young elderly, Randomization description: Simple randomization based on lottery, Blinding description: In this study, the participants are kept blind to the study. From numbers 1 to 30, each patient chooses a number by lottery. Every patient who took an even number out of the container is the intervention group and the odd number is the control group. The researcher who is responsible for evaluating the outcome and analyzing the data is aware of the details. N/A Knee osteoarthritis. Intervention 1: Intervention group: soft medical insoles of polyurethane type with hardness between 10 and 25 and will be commercially available. The sole will have a 7-degree outer edge and a length equal to the length of the foot. The insole cover is synthetic leather and has an internal arch. People participating in the study must use insoles for 4 weeks and at least 4 hours a day, but they can wear them as long as they want. Insoles in shoes or in a chair that the person It will be commonly used in the past months. So that the shoes or sandals themselves do not have a positive or negative effect on the research variables. Intervention 2: Control group: does not receive any intervention. The control group with all the same conditions at the beginning of the project and after one month will complete the questionnaires attached to the proposal. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information