Abstract
Abstract: In this paper, we propose a wrist rehabilitation training device using pneumatic inflation and deflation ofair cells. By alternating inflation and deflation of upper and lower air cells, the device makes the flexional and exten-sional movement for wrist rehabilitation. With the angular displacement sensor, it measures the flexion-extensionangle of the wrist during the training and the bending angle is used for the automatic control of the device. Usingthe sensor output, the regression equation was obtained to measure the bending angle of the wrist from a wrist reha-bilitation training device. The measurement error of the device was evaluated by comparing the measurement outputwith the angle from the photograph. The measurement error of wrist bending angle between the sensor and photowas 3.2 o in average. With additional test and improvement, the pneumatic wrist rehabilitation training device mightbe used for rehabilitation training. Key words: Rehabilitation, Wrist, Pneumatic, Flexion, Angle
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