THE ANALYSIS OF GAIT PARAMETERS IN PATIENTS WITH FLATFOOT AND NORMAL FEET USING OPTICAL MOTION CAPTURE AND FORCE PLATE

• Main Author: Diova Putra, Rahmat
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/86372
• Institution: Institut Teknologi Bandung

Flat feet is a condition where the arch of the foot is lost, causing the arch area to come closer to or make direct contact with the surface. In flat feet, there is a biomechanical alteration affecting the center of gravity and kinetic forces on the body. This study aims to design and develop a more effective diagnostic method using an optical motion capture and force plate to provide a positive contribution to the understanding and treatment of flat feet. The study involved 20 subjects, consisting of 5 individuals with flat feet and 15 individuals with normal feet, all within a normal Body Mass Index (BMI) range. The research utilized a straight walking path with a force plate connected to a National Instruments device, model NI 9237, and eight Optitrack Prime X cameras. The subjects were required to walk in a straight line on the walking path, stepping one foot onto the force plate. Anthropometric data of the subjects were obtained, with a relatively small standard deviation for each variable, thus minimizing internal factors in the study. A t-test analysis of kinematic parameters, including the range of motion (ROM) of the knee joint, ROM on the x-axis and y-axis of the center of pressure (COP), and displacement of the COP, yielded p-values greater than 0.05. Gait analysis can be identified using an optical motion capture and force plate through kinematic parameters; however, no statistically significant differences were found between normal and flat feet subjects based on the analysis of kinematic parameters.