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This article and any supplementary material should be cited as follows: Alcaide-Aguirre RE, Morgenroth DC, Ferris DP. Motor control and learning with lower-limb.

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Presentation on theme: "This article and any supplementary material should be cited as follows: Alcaide-Aguirre RE, Morgenroth DC, Ferris DP. Motor control and learning with lower-limb."— Presentation transcript:

1 This article and any supplementary material should be cited as follows: Alcaide-Aguirre RE, Morgenroth DC, Ferris DP. Motor control and learning with lower-limb myoelectric control in amputees. J Rehabil Res Dev. 2013;50(5):687–98. http://dx.doi.org/10.1682/JRRD.2012.06.0115 Slideshow Project DOI:10.1682/JRRD.2012.06.0115JSP Motor control and learning with lower-limb myoelectric control in amputees Ramses E. Alcaide-Aguirre, BS; David C. Morgenroth, MD; Daniel P. Ferris, PhD

2 This article and any supplementary material should be cited as follows: Alcaide-Aguirre RE, Morgenroth DC, Ferris DP. Motor control and learning with lower-limb myoelectric control in amputees. J Rehabil Res Dev. 2013;50(5):687–98. http://dx.doi.org/10.1682/JRRD.2012.06.0115 Slideshow Project DOI:10.1682/JRRD.2012.06.0115JSP Aim – Assess motor learning in people with lower-limb amputation using proportional myoelectric control from residual-limb muscles. Relevance – Major hurdle in developing commercially successful powered prostheses is control interface. – Myoelectric signals are one way for prosthetic users to provide feedforward volitional control of prosthesis mechanics.

3 This article and any supplementary material should be cited as follows: Alcaide-Aguirre RE, Morgenroth DC, Ferris DP. Motor control and learning with lower-limb myoelectric control in amputees. J Rehabil Res Dev. 2013;50(5):687–98. http://dx.doi.org/10.1682/JRRD.2012.06.0115 Slideshow Project DOI:10.1682/JRRD.2012.06.0115JSP Method 9 individuals with transtibial amputation and 13 nondisabled controls tracked virtual object. Assessed: – How quickly individuals with amputation improved their performance. – Whether years since amputation correlated with performance.

4 This article and any supplementary material should be cited as follows: Alcaide-Aguirre RE, Morgenroth DC, Ferris DP. Motor control and learning with lower-limb myoelectric control in amputees. J Rehabil Res Dev. 2013;50(5):687–98. http://dx.doi.org/10.1682/JRRD.2012.06.0115 Slideshow Project DOI:10.1682/JRRD.2012.06.0115JSP Results At beginning of training: – Subjects with amputation performed much worse than control subjects. By end of short training: – Tracking error did not significantly differ between subjects with amputation and nondisabled subjects. Initial but not final performance correlated significantly with time since amputation.

5 This article and any supplementary material should be cited as follows: Alcaide-Aguirre RE, Morgenroth DC, Ferris DP. Motor control and learning with lower-limb myoelectric control in amputees. J Rehabil Res Dev. 2013;50(5):687–98. http://dx.doi.org/10.1682/JRRD.2012.06.0115 Slideshow Project DOI:10.1682/JRRD.2012.06.0115JSP Conclusion Although subjects with amputation may initially have poor volitional control of residual lower-limb muscles, training can substantially improve control. Findings are encouraging for future use of proportional myoelectric control of powered lower-limb prostheses.

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