Title :
A discrete model of the paraplegic knee joint under electrical stimulation
Author :
Sacher, C. Ari ; Hatwell, Michael S. ; Inbar, Gideon F.
Author_Institution :
Dept. of Electr. Eng., Technion-Israel Inst. of Technol., Haifa, Israel
Abstract :
A model describing the input/output properties of the electrically stimulated knee joint of a paraplegic subject is described. Both a nonlinear block describing the relationship between pulse width and isometric force and a linear block defining the muscle dynamics are modeled. After the nonlinearity is linearized, a DARMA model is used to model the system. Three criteria are used in choosing the optimal model orders and delay
Keywords :
bioelectric phenomena; biomechanics; bone; muscle; physiological models; DARMA model; discrete model; electrical stimulation; electrically stimulated knee joint; input/output properties; isometric force; linear block; muscle dynamics; nonlinear block; paraplegic knee joint; pulse width; Biological system modeling; Delay effects; Delay estimation; Electrical stimulation; Knee; Muscles; Nonlinear dynamical systems; Recruitment; Space vector pulse width modulation; System identification;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96009
