This paper reports the variability in muscle recruitment strategies among individuals who operate a non-powered lifting device for general assembly (GA) tasks. Support vector machine (SVM) was applied to the classification of motion states of operators using electromyography (EMG) signals collected from a total of 15 upper limb, lower limb, shoulder, and torso muscles. By comparing the classification performance and muscle activity features, variability in muscle recruitment strategy was observed from lower limb and torso muscles, while the recruitment strategies of upper limb and shoulder muscles were relatively consistent across subjects. Principal component analysis (PCA) was applied to identify key muscles that are highly correlated with body movements. Selected muscles at the wrist joint, ankle joint and scapula are considered to have greater significance in characterizing the muscle recruitment strategies than other investigated muscles. PCA loading factors also indicate the existence of body motion redundancy during typical pick-and-place tasks.
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ASME 2018 Dynamic Systems and Control Conference
September 30–October 3, 2018
Atlanta, Georgia, USA
Conference Sponsors:
- Dynamic Systems and Control Division
ISBN:
978-0-7918-5189-0
PROCEEDINGS PAPER
Variability in Muscle Recruitment Strategy Between Operators During Assisted Assembly Tasks
Yingxin Qiu,
Yingxin Qiu
Georgia Institute of Technology, Atlanta, GA
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Keerthana Murali,
Keerthana Murali
Georgia Institute of Technology, Atlanta, GA
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Jun Ueda,
Jun Ueda
Georgia Institute of Technology, Atlanta, GA
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Atsushi Okabe,
Atsushi Okabe
University of Electro-Communications, Tokyo, Japan
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Dalong Gao
Dalong Gao
General Motors, Warren, MI
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Yingxin Qiu
Georgia Institute of Technology, Atlanta, GA
Keerthana Murali
Georgia Institute of Technology, Atlanta, GA
Jun Ueda
Georgia Institute of Technology, Atlanta, GA
Atsushi Okabe
University of Electro-Communications, Tokyo, Japan
Dalong Gao
General Motors, Warren, MI
Paper No:
DSCC2018-9222, V001T12A005; 8 pages
Published Online:
November 12, 2018
Citation
Qiu, Y, Murali, K, Ueda, J, Okabe, A, & Gao, D. "Variability in Muscle Recruitment Strategy Between Operators During Assisted Assembly Tasks." Proceedings of the ASME 2018 Dynamic Systems and Control Conference. Volume 1: Advances in Control Design Methods; Advances in Nonlinear Control; Advances in Robotics; Assistive and Rehabilitation Robotics; Automotive Dynamics and Emerging Powertrain Technologies; Automotive Systems; Bio Engineering Applications; Bio-Mechatronics and Physical Human Robot Interaction; Biomedical and Neural Systems; Biomedical and Neural Systems Modeling, Diagnostics, and Healthcare. Atlanta, Georgia, USA. September 30–October 3, 2018. V001T12A005. ASME. https://doi.org/10.1115/DSCC2018-9222
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