2018 Volume 54 Issue 5 Pages 205-208
Gait analysis is utilized not only in medical fields such as orthopedic surgery and rehabilitation but also in form correction of athletes and is also being conducted as a biometric identification technology capable of identifying individuals. On the other hand, in the civil engineering field, a lot of gait analyses for healthy subjects are carried out in order to investigate the resonant vibration problem of pedestrian bridge. A major feature of gait analysis in the civil engineering is to calculate dynamic walking load that acts on the bridge surface as dynamic load factor （DLF）. Therefore, in this study, for the six subjects, DLF in three directions （vertical, fore and after, lateral directions） was calculated using the power spectrum density of the acceleration measured on the right lumber part. As a result, it was found that walking authentication of all six subjects was able to be done correctly using the RMS3 summed up with the root mean square （RMS） value of DLF in three directions. This led to the conclusion that the walking identification using DLF was one of convenient and useful methods.
