Measurement system for a gait motion of a patient with pincer nail

The pincer nail, a disease with deformation of the foot nail, is so problematic that a patient is difficult to walk for the pain in the case of heavily deformed. The cause of the pincer nail is not clear. Some researchers consider that the cause is external factor. Our group also guesses that the gait motion is one of the cause. This paper mainly describes the measurement system for the gait motion we developed. And the measurement result of the gravity center fluctuation, fluctuation of the acceleration of the waist and the motion tracking by the developed measurement system are shown. A part of the data set that are obtained by the system is analyzed by the self-organized map and cluster analysis. As a result, the trend of the patient with pincer nail is found out.