Estimation of multijoint stiffness using electromyogram and artificial neural network

Hyun K. Kim, Byungduk Kang, Byungchan Kim, Shinsuk Park

    Research output: Contribution to journalArticlepeer-review

    32 Citations (Scopus)

    Abstract

    The human arm exhibits outstanding manipulability in executing various tasks by taking advantage of its intrinsic compliance, force sensation, and tactile contact clues. By examining human strategy in controlling arm impedance, we may be able to understand underlying human motor control and develop control methods for dexterous robotic manipulation. This paper presents a novel method for estimating multijoint stiffness by using electromyogram (EMG) and an artificial neural network model. The artificial network model developed in this paper relates EMG data and joint motion data to joint stiffness. With the proposed method, the multijoint stiffness of the arm was estimated without complex calculation or specialized apparatus. The feasibility of the proposed method was confirmed through experimental and simulation results.

    Original languageEnglish
    Pages (from-to)972-980
    Number of pages9
    JournalIEEE Transactions on Systems, Man, and Cybernetics Part A:Systems and Humans
    Volume39
    Issue number5
    DOIs
    Publication statusPublished - 2009

    Bibliographical note

    Funding Information:
    Manuscript received August 29, 2008. First published August 14, 2009; current version published August 21, 2009. This work was supported by the Korea Science and Engineering Foundation under Grant R01-2007-000-20977-0 funded by the Korean Ministry of Education, Science and Technology. This paper was recommended by Associate Editor A. A. Maciejewski.

    Keywords

    • Artificial neural network (ANN)
    • Electromyogram (EMG)
    • Equilibrium point control
    • Joint stiffness

    ASJC Scopus subject areas

    • Software
    • Control and Systems Engineering
    • Human-Computer Interaction
    • Computer Science Applications
    • Electrical and Electronic Engineering

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