Abstract
The accurate length and frequency of the step and stride are indispensable data for a study of human walking. Previous methods for obtaining these measurements have some problems in handling and accuracy. The method which we have developed here makes these measurements easier by using special custommade apparatuses. They measure the position in which the sole makes contact with the floor with a resolution of 5mm and the sampling frequency is 1000 times per second. From these data we can easily calculate the length and frequency of the step and stride. These apparatuses measure the sole-contact area as a segment line and output coordinates for both ends of this area. We made from these data a "onedimensional vestigigram". It indicates how the sole makes contacts with the floor from the heel to the toe chronologically.
