Abstract
Fall accidents of rheumatoid arthritis (RA) will easily lead the bone fractures and disuse syndrome. To prevent the fall accidents, we analyzed the relationship of the factors of disease severity, disorders and fall accidents. They have multiple disorders in joints and muscle. In this study, we analyzed their gait performance by using force plate system and F-scan system in 19 RA patients and normal healthy volunteers. The pattern of force plate (X,Y,Z) and F-scan showed similar in normal control, but the patients' patterns showed various patterns. We showed that the impact power of heel of controls was higher than that of RA patients at heel contact. The plantar pressure of the forefoot of the controls was higher than that of RA patients at the toe-off timing. And RA patients showed the longer double stance phase and many disorders in foot plate pressure.
