(EN)Load measuring sections (50, 52) are provided with reaction sensors (50a, 50b, 52a, 52b) for measuring the loads at two positions, i.e. the tiptoes and the heels, on the sole side of the right and left feet of a person (12) wearing the device. The reaction sensor (50a) detects the reaction to a load on the front side of the right foot (right tiptoe), and the reaction sensor (50b) detects the reaction to a load on the rear side of the right foot (right heel). The reaction sensor (52a) detects the reaction to a load on the front side of the left foot (left tiptoe), and the reaction sensor (52b) detects the reaction to a load on the rear side of the left foot (left heel). Each reaction sensor (50a, 50b, 52a, 52b) is arranged to detect, based on the variation in capacitance, the loads acting on the right and left feet by the walking motion of the person (12) wearing the device, and can detect the variation in load incident to movement of weight and whether or not the foot of the person (12) wearing the device contacts the ground surface.
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