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Development of fuzzy muscle contraction and activation model using multi-objective optimisation

KSM Kader Ibrahim, Babul Salam and Tokhi, M.O. and Gharooni, S.C. and Huq, M.S. (2010) Development of fuzzy muscle contraction and activation model using multi-objective optimisation. In: 2010 4th Annual IEEE Systems Conference, 5-8 April 2010, San Diego, CA.

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Characterization of electrically stimulated muscle is complex because of the non-linearity and time-varying nature of the system with interdependent variables. The muscle model consists of relatively well known time-invariant passive properties and uncertain time-variant active properties. The objective of this study is to develop an active properties model that can be implemented in biomechanical models of the lower extremities, which are generally used for the simulation of joint movements such as walking and cycling, A new approach for dynamic characterization of active properties (combination of muscle contraction and activation) of the quadriceps muscle using fuzzy model by optimizing with multi objective genetic algorithm (MOGA) is presented. MOGA is used with two objectives; to minimize the prediction error to fit the experimental data and reduce the weighting factors of the fuzzy rules to minimize the complexity of the fuzzy model. The results show that the knee joint model developed gives an accurate dynamic characterization of active properties of the knee joint.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: knee joint; functional electrical stimulation; multi objective genetic algorithm; fuzzy inference system
Subjects: Q Science > QA Mathematics > QA801 Analytic mechanics
Divisions: Faculty of Electrical and Electronic Engineering > Department of Robotic and Mechatronic Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 25 Feb 2013 03:12
Last Modified: 21 Jan 2015 07:23
URI: http://eprints.uthm.edu.my/id/eprint/3073
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