抄録
The accident that human falls down during a walking is an important problem in Japan where the aged society is rushing in. In addition, a person nearly 6,000 loses their life by a fall accident every year. In this study is given categories as the risk factor that an accident is easy to occur by a fall, we realizes that affinity is always most suitable even if we can observe what kind of change at the foot part and hips where sensor instolled footwear into about footwear and affinity of the floor side. At the time of the walking, an anglur acceleration change is examine a for dangerous factor like a spectrum data by using an acceleration sensor singnals when we control the tach of sole at the floor side slippy condition, and floor side changes in what a sole controls.
