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Clasp-knife model of muscle spasticity for simulation of robot-human interaction

Mat Rosly, Muhammad Hadi and Sidek, Shahrul Na'im and Ahmad Puzi, Asmarani and Md. Yusof, Hazlina and Daud, Narimah and Mat Rosly, Maziah (2019) Clasp-knife model of muscle spasticity for simulation of robot-human interaction. IEEE Access, 7. pp. 1355-1364. E-ISSN 2169-3536

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Abstract

The objective of this research was to replicate the muscle tone moment feedback of elbow upon passive mobilisation and classify them based on Modified Ashworth Scale (MAS) criterion using a mathematical model. The proposed model enables visualisation of muscle tone pattern for robotic interaction simulation. Concurrent muscle tone model necessitates jerk effect to fully replicate the catch and release effect, also known as, clasp-knife phenomenon of muscle tone feedback. However, the research of passive mobilisation control interaction between robot and subject does not emulate such phenomenon. Thus, the model was improvised to replicate the clasp-knife phenomenon according to the robot’s gross kinematics and dynamics. The model was designed based on the quantitative pattern of muscle tone feedback from subject with spasticity. The simulated model was then correlated to clinical measures using similar kinematic and dynamic input. The velocity dynamic input was splined to obtain the velocity trend without the jerk effect. The results obtained from the proposed model were relatively promising with an overall (n=9×4) linear (Pearson) correlated average of r =0.8348 for nine subjects with correlation significant at the 0.01 level (p<0.01) and five of them presented a distinctive clasp-knife phenomenon with correlation average of r =0.8631.

Item Type: Article (Journal)
Additional Information: 3028/65848
Uncontrolled Keywords: Modelling, motion analysis, mathematics, biomedical engineering.
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery > TJ181 Mechanical movements
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Mechatronics Engineering
Depositing User: Dr. Shahrul Naim Sidek
Date Deposited: 21 Sep 2018 11:20
Last Modified: 11 Mar 2019 15:11
URI: http://irep.iium.edu.my/id/eprint/65848

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