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JRM Vol.14 No.5 pp. 439-452
doi: 10.20965/jrm.2002.p0439
(2002)

Paper:

An Interface between an Exoskeletal Elbow Motion Assistance Robot and the Human Upper Arm

Kazuo Kiguchi*, Shingo Kariya*, Takakazu Bnaka*, Keigo Watanabe* and Toshio Fukuda**

*Dept. of Advanced Systems Control Engineering, Graduate School of Science and Engineering, Saga University, 1 Honjomachi, Saga-shi, Saga, 840-8502 Japan

**Dept. of Microsystem Engineering, Graduate school of Engineering, Nagoya University, 1 Furo-cho, Chikusa-ku, Nagoya, 464-8603 Japan

Received:
April 8, 2002
Accepted:
August 2, 2002
Published:
October 20, 2002
Keywords:
exoskeletal robot, power assist, biorobotics, EMG, soft computing
Abstract

We have been developing exoskeletal motion assistance robots for human motion support to help physically weak persons. Since elbow motion is one of the simplest and most important motion in daily activities, we have developed a exoskeletal robot for human elbow motion assistance. In this system, the angular position and impedance of the exoskeletal robot are controlled by multiple fuzzy-neuro controllers. Skin surface electromyography (EMG) signals and wrist force by the human subject during elbow joint motion have been used as input information for the controller. Since the activation of working muscles tends to vary with the human subject’s upper arm posture, we propose an interface that cancels out the effect of posture changes of the human subject’s upper arm. Experimental results show the effectiveness of the proposed interface.

Cite this article as:
Kazuo Kiguchi, Shingo Kariya, Takakazu Bnaka, Keigo Watanabe, and Toshio Fukuda, “An Interface between an Exoskeletal Elbow Motion Assistance Robot and the Human Upper Arm,” J. Robot. Mechatron., Vol.14, No.5, pp. 439-452, 2002.
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