Gradient Gel Inserts: Innovative Solutions for Knee Pain Relief

The present research focuses on developing a novel shoe insert made of a gel material featuring a controllable stiffness gradient to improve biomechanical foot alignment, reduce knee joint loading, and alleviate knee pain. The material's stiffness was adjusted by varying polymer concentration, and compression and indentation testing provided insights into the optimal range of these concentrations. A specialized template was designed to ensure consistent gradient sample production, facilitating repeatable results. Fatigue tests simulated real-life conditions, demonstrating the material's durability under repeated stress. The findings evidence the feasibility of creating a customizable gel material for shoe inserts, offering a promising solution for managing knee pain.