Abstract
In human gait motion analysis, which is one useful method for efficient physical rehabilitation, ground reaction force, kinematic and kinetic parameters are measured during walking. Recently, it is thought that the patients with walking disability including trans-femoral amputees must regain moving pattern by refined rehabilitation program using ground reaction forces, joint angles and joint moments. At present, intuitive gait training systems cannot be put into practical use adequately. For obtaining these data as the directly wearable gait measurement, in addition to a novel gait motion analysis system using mobile force plate and attitude sensor, split-belt treadmill instrumented force plate with a new concept for motion instruction based on biofeedback has been developed. However, they have not been synthesized yet as motion instruction system focused on the gait training in the past. In this study, ground reaction forces, kinematic and kinetic parameters applied on the healthy subject are measured by using the developed split-belt treadmill instrumented force plate, wearable gait motion analysis system and conventional gait measurement system simultaneously for the development and verification of motion instruction system. As a result of the experiments and consideration by their intercomparison, the patterns of ground reaction force, spatial information and each evaluation index by them are obtained as similar feature quantities among each measurement condition in cases of using instrumented treadmill, wearable gait motion analysis system and conventional measurement system. Finally, the effectiveness of the developed instrumented treadmill and quantitative evaluation concerning human locomotion on the instrumented treadmill by those data is validated.
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