Static ankle impedance in stroke and multiple sclerosis: A feasibility study

Hyunglae Lee; Tara Patterson; Jooeun Ahn; Daniel Klenk; Albert Lo; Hermano Igo Krebs; Neville Hogan

doi:10.1109/IEMBS.2011.6092103

Static ankle impedance in stroke and multiple sclerosis: A feasibility study

Hyunglae Lee, Tara Patterson, Jooeun Ahn, Daniel Klenk, Albert Lo, Hermano Igo Krebs, Neville Hogan

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Quantitative characterization of ankle mechanical impedance is critical for understanding lower extremity function in persons with neurological disorders. In this paper, we examine the feasibility of employing an ankle robot and multivariable analysis to determine static ankle impedance in 4 patients: 1 with multiple sclerosis and 3 with stroke. We employed a scalar based vector field approximation method which was successful in identifying young healthy subjects' ankle impedance. It enabled clear interpretation of spatial ankle impedance structure and intermuscular feedback at the ankle for both affected and unaffected legs. Measured impedance of two patients was comparable to healthy young subjects, while the other two patients had significantly different static ankle impedance properties.

Original language	English (US)
Title of host publication	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
Pages	8523-8526
Number of pages	4
DOIs	https://doi.org/10.1109/IEMBS.2011.6092103
State	Published - 2011
Externally published	Yes
Event	33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011 - Boston, MA, United States Duration: Aug 30 2011 → Sep 3 2011

Other

Other	33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
Country/Territory	United States
City	Boston, MA
Period	8/30/11 → 9/3/11

ASJC Scopus subject areas

Computer Vision and Pattern Recognition
Signal Processing
Biomedical Engineering
Health Informatics

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10.1109/IEMBS.2011.6092103

Cite this

Lee, H, Patterson, T, Ahn, J, Klenk, D, Lo, A, Krebs, HI & Hogan, N 2011, Static ankle impedance in stroke and multiple sclerosis: A feasibility study. in Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS., 6092103, pp. 8523-8526, 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011, Boston, MA, United States, 8/30/11. https://doi.org/10.1109/IEMBS.2011.6092103

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abstract = "Quantitative characterization of ankle mechanical impedance is critical for understanding lower extremity function in persons with neurological disorders. In this paper, we examine the feasibility of employing an ankle robot and multivariable analysis to determine static ankle impedance in 4 patients: 1 with multiple sclerosis and 3 with stroke. We employed a scalar based vector field approximation method which was successful in identifying young healthy subjects' ankle impedance. It enabled clear interpretation of spatial ankle impedance structure and intermuscular feedback at the ankle for both affected and unaffected legs. Measured impedance of two patients was comparable to healthy young subjects, while the other two patients had significantly different static ankle impedance properties.",

author = "Hyunglae Lee and Tara Patterson and Jooeun Ahn and Daniel Klenk and Albert Lo and Krebs, {Hermano Igo} and Neville Hogan",

year = "2011",

doi = "10.1109/IEMBS.2011.6092103",

language = "English (US)",

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AU - Lo, Albert

AU - Krebs, Hermano Igo

AU - Hogan, Neville

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N2 - Quantitative characterization of ankle mechanical impedance is critical for understanding lower extremity function in persons with neurological disorders. In this paper, we examine the feasibility of employing an ankle robot and multivariable analysis to determine static ankle impedance in 4 patients: 1 with multiple sclerosis and 3 with stroke. We employed a scalar based vector field approximation method which was successful in identifying young healthy subjects' ankle impedance. It enabled clear interpretation of spatial ankle impedance structure and intermuscular feedback at the ankle for both affected and unaffected legs. Measured impedance of two patients was comparable to healthy young subjects, while the other two patients had significantly different static ankle impedance properties.

AB - Quantitative characterization of ankle mechanical impedance is critical for understanding lower extremity function in persons with neurological disorders. In this paper, we examine the feasibility of employing an ankle robot and multivariable analysis to determine static ankle impedance in 4 patients: 1 with multiple sclerosis and 3 with stroke. We employed a scalar based vector field approximation method which was successful in identifying young healthy subjects' ankle impedance. It enabled clear interpretation of spatial ankle impedance structure and intermuscular feedback at the ankle for both affected and unaffected legs. Measured impedance of two patients was comparable to healthy young subjects, while the other two patients had significantly different static ankle impedance properties.

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Static ankle impedance in stroke and multiple sclerosis: A feasibility study

Abstract

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