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Complexity-Based Analysis Of Muscle Activation During Walking At Different Speeds

Author

Listed:
  • SRIDEVI SRIRAM

    (Centre for Computational Modelling, Chennai Institute of Technology, Tamil Nadu, India)

  • KARTHIKEYAN RAJAGOPAL

    (��Centre for Nonlinear Systems, Chennai Institute of Technology, Tamil Nadu, India‡Department of Electronics and Communications Engineering, University Centre for Research & Development, Chandigarh University, Mohali 140413, Punjab, India)

  • ONDREJ KREJCAR

    (�Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, 50003 Hradec Kralove, Czechia¶Institute of Technology and Business in Ceske Budejovice, Ceske Budejovice, Czechia∥Department of Biomedical Engineering and Measurement, Faculty of Mechanical Engineering, Technical University of Kosice, Slovakia)

  • ROBERT FRISCHER

    (�Institute of Technology and Business in Ceske Budejovice, Ceske Budejovice, Czechia)

  • HAMIDREZA NAMAZI

    (�Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, 50003 Hradec Kralove, Czechia**School of Engineering, Monash University, Selangor, Malaysia)

Abstract

In this research, we investigated the effect of changes in walking speed on variations of the complexity of electromyogram (EMG) signals recorded from the right and left legs of subjects. We specifically employed fractal theory and approximate entropy to analyze the changes in the complexity of EMG signals recorded from 13 subjects walked at 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, and 4.0 km/h on a flat surface. The results showed that by increasing of walking speed, the complexity of EMG signals decreases. The statistical analysis also indicated the significant effect of variations in walking speed on the variations of the complexity of EMG signals. This method analysis can be applied to other physiological signals of humans (e.g. electroencephalogram (EEG) signals) to investigate the effect of walking speed on other organs’ activations (e.g. brain).

Suggested Citation

  • Sridevi Sriram & Karthikeyan Rajagopal & Ondrej Krejcar & Robert Frischer & Hamidreza Namazi, 2023. "Complexity-Based Analysis Of Muscle Activation During Walking At Different Speeds," FRACTALS (fractals), World Scientific Publishing Co. Pte. Ltd., vol. 31(03), pages 1-9.
    • Handle: RePEc:wsi:fracta:v:31:y:2023:i:03:n:s0218348x23500329
    DOI: 10.1142/S0218348X23500329
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