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 proceedingConference 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 languageEnglish (US)
Title of host publicationProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
Pages8523-8526
Number of pages4
DOIs
StatePublished - 2011
Externally publishedYes
Event33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011 - Boston, MA, United States
Duration: Aug 30 2011Sep 3 2011

Other

Other33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
CountryUnited States
CityBoston, MA
Period8/30/119/3/11

Fingerprint

Feasibility Studies
Electric Impedance
Ankle
Multiple Sclerosis
Stroke
Robots
Feedback
Healthy Volunteers
Nervous System Diseases
Lower Extremity
Leg

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Signal Processing
  • Biomedical Engineering
  • Health Informatics

Cite this

Lee, H., Patterson, T., Ahn, J., Klenk, D., Lo, A., Krebs, H. I., & 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 (pp. 8523-8526). [6092103] https://doi.org/10.1109/IEMBS.2011.6092103

Static ankle impedance in stroke and multiple sclerosis : A feasibility study. / Lee, Hyunglae; Patterson, Tara; Ahn, Jooeun; Klenk, Daniel; Lo, Albert; Krebs, Hermano Igo; Hogan, Neville.

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. 2011. p. 8523-8526 6092103.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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
Lee H, Patterson T, Ahn J, Klenk D, Lo A, Krebs HI et al. 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. 2011. p. 8523-8526. 6092103 https://doi.org/10.1109/IEMBS.2011.6092103
Lee, Hyunglae ; Patterson, Tara ; Ahn, Jooeun ; Klenk, Daniel ; Lo, Albert ; Krebs, Hermano Igo ; Hogan, Neville. / Static ankle impedance in stroke and multiple sclerosis : A feasibility study. Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS. 2011. pp. 8523-8526
@inproceedings{839a40a143684bbe954a481e7037920f,
title = "Static ankle impedance in stroke and multiple sclerosis: A feasibility study",
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)",
isbn = "9781424441211",
pages = "8523--8526",
booktitle = "Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS",

}

TY - GEN

T1 - Static ankle impedance in stroke and multiple sclerosis

T2 - A feasibility study

AU - Lee, Hyunglae

AU - Patterson, Tara

AU - Ahn, Jooeun

AU - Klenk, Daniel

AU - Lo, Albert

AU - Krebs, Hermano Igo

AU - Hogan, Neville

PY - 2011

Y1 - 2011

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.

UR - http://www.scopus.com/inward/record.url?scp=84055222362&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84055222362&partnerID=8YFLogxK

U2 - 10.1109/IEMBS.2011.6092103

DO - 10.1109/IEMBS.2011.6092103

M3 - Conference contribution

SN - 9781424441211

SP - 8523

EP - 8526

BT - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS

ER -