P-8　Quantification of the depth at which the vibrator pushes the tendon to evoke the motion illusion

Abstract

The purpose of this study is to establish a method of quantifying the depth of the tendon, pushed by a contact head of a vibration device, during tendon vibration. The amplitude of vibration described in previous studies is not the observed amplitude during vibration. We propose the method in which we quantify the depth of the tendon pushed by a contact head of the vibration device during tendon vibration. We measure the displacement of the contact head during vibration by using a laser displacement sensor. Simultaneously we attach the acceleration pickup on the trunk of the contact head and record the acceleration. We calculate the displacement of the contact head during vibration, by integrating the recorded acceleration. We compared the displacement of the laser displacement sensor and the proposed method under three conditions and report the results.