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Paper TuP213.4

Luo, Ren (National Taiwan University), Chang, Chih-Chia (National Chung Cheng University)

Electromyographic Evaluation of Therapeutic Massage Effect Using Multi-Finger Robot Hand

Scheduled for presentation during the Regular Sessions "Medical Robots and Systems IV" (TuP213), Tuesday, May 10, 2011, 16:10−16:25, Room 5I

2011 IEEE International Conference on Robotics and Automation, May 9-13, 2011, Shanghai International Conference Center, Shanghai, China

This information is tentative and subject to change. Compiled on March 30, 2020

Keywords Medical Robots and Systems, Multifingered Hands, Service Robots

Abstract

The multi-finger robot hand (IRA-Hand I) is specially designed for massage applications. Surface electromyographic (SEMG) evaluation of therapeutic massage effects using multi-finger robot hand are presented in this paper. After an isometric 50% MVC (maximum voluntary contraction) of human back muscles is performed for 90 seconds, SEMG signals of the subject show a muscular fatigue. A grasp-kneading massage by the robot hand is applied on the subjectís shoulder for recovering from muscular fatigue. To evaluate the therapeutic effects of massage, the SEMG signals measured from the trapezius muscles before and after the massage therapy are analyzed. Electrical activity (EA) and median frequency (MF) of the SEMG signals are calculated as indexes of the muscle physiological states. The experimental results show that EA increases from the occurrence of fatigue, while MF shifts towards lower frequency in the spectral distribution. After massage, a decrease in EA and an increase in MF are observed which demonstrate the effectiveness of recovery through the grasp-kneading massage by the robot hand. In addition, the joint analysis of EMG spectrum and amplitude (JASA), which considers the changes in time domain and in frequency domain simultaneously, verifies that the therapeutic massage recovers the trapezius muscle from fatigue effectively. For comparison, the experiments with a massage specialist performing the massage therapy are conducted with the same procedures. It is evidenced

 

 

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