Abstract
The influence of gait velocity on ground reaction force (GRF) distributions in the contact area is experimentally clarified. To measure the GRF distributions, a shoe mounted miniature triaxial force sensors is developed, the weight is 270.0g. By using the shoe, distributions of lateral, longitudinal and vertical force components at 19 local positions are measured at gait velocities of 4.0, 8.0 and 12.0 min/km. The experimental results show that the GRF distributions have different tendencies in contact area. In comparison of the GRF distributions in 3 gait velocities, it is confirmed that area loaded high force value is clearly different at the time forward GRF reaches minimum, zero and maximum. These differences imply that shoe sole can be independently designed by changing the gait velocity.
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