Cumulative vibratory index and recovery curve parameters of the soleus H-reflex in dystonia and spasticity: A discriminant analysis

L.J. Bour; B.W. Ongerboer de Visser; J.D. Speelman; J.H.T.M. Koelman

doi:10.1109/IEMBS.1989.95752

Cumulative vibratory index and recovery curve parameters of the soleus H-reflex in dystonia and spasticity: A discriminant analysis

L.J. Bour^*, B.W. Ongerboer de Visser, J.D. Speelman, J.H.T.M. Koelman

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

Soleus H-reflex studies were carried out in a control group consisting of 43 healthy individuals, 22 patients with upper motoneuron lesions having spasticity, and 6 patients with dystonia. H-M recruitment curves with and without vibration of the Achilles tendon as well as H-reflex recovery curves at H-max and half H-max intensity were determined. From the experimental data several variables were derived, such as the cumulative vibratory index and the local maxima and minima of the recovery curves. To assess the collective values of several features, a discriminant analysis was performed. The methods presented improve the specificity of the quantitative neurophysiological measure of dystonia and spasticity.

Original language	English
Title of host publication	Images of the Twenty-First Century
Subtitle of host publication	Proceedings of the Annual International Engineering in Medicine and Biology Society
Place of Publication	Los Alamitos, CA
Publisher	IEEE
Pages	997-999
Number of pages	3
DOIs	https://doi.org/10.1109/IEMBS.1989.95752
Publication status	Published - 1 Nov 1989
Externally published	Yes
Event	11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 1989: Images of the Twenty-First Century - Seattle, United States Duration: 9 Nov 1989 → 12 Nov 1989 Conference number: 11

Publication series

Name	Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Publisher	IEEE
Volume	1989
ISSN (Print)	0589-1019

Conference

Conference	11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 1989
Country/Territory	United States
City	Seattle
Period	9/11/89 → 12/11/89

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10.1109/IEMBS.1989.95752

Bour1989cumulativeFinal published version, 246 KB

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Bour, L. J., Ongerboer de Visser, B. W., Speelman, J. D., & Koelman, J. H. T. M. (1989). Cumulative vibratory index and recovery curve parameters of the soleus H-reflex in dystonia and spasticity: A discriminant analysis. In Images of the Twenty-First Century: Proceedings of the Annual International Engineering in Medicine and Biology Society (pp. 997-999). (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings; Vol. 1989). IEEE. https://doi.org/10.1109/IEMBS.1989.95752

Bour, L.J. ; Ongerboer de Visser, B.W. ; Speelman, J.D. et al. / Cumulative vibratory index and recovery curve parameters of the soleus H-reflex in dystonia and spasticity : A discriminant analysis. Images of the Twenty-First Century: Proceedings of the Annual International Engineering in Medicine and Biology Society. Los Alamitos, CA : IEEE, 1989. pp. 997-999 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings).

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title = "Cumulative vibratory index and recovery curve parameters of the soleus H-reflex in dystonia and spasticity: A discriminant analysis",

abstract = "Soleus H-reflex studies were carried out in a control group consisting of 43 healthy individuals, 22 patients with upper motoneuron lesions having spasticity, and 6 patients with dystonia. H-M recruitment curves with and without vibration of the Achilles tendon as well as H-reflex recovery curves at H-max and half H-max intensity were determined. From the experimental data several variables were derived, such as the cumulative vibratory index and the local maxima and minima of the recovery curves. To assess the collective values of several features, a discriminant analysis was performed. The methods presented improve the specificity of the quantitative neurophysiological measure of dystonia and spasticity.",

author = "L.J. Bour and {Ongerboer de Visser}, B.W. and J.D. Speelman and J.H.T.M. Koelman",

year = "1989",

month = nov,

day = "1",

doi = "10.1109/IEMBS.1989.95752",

language = "English",

series = "Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings",

publisher = "IEEE",

pages = "997--999",

booktitle = "Images of the Twenty-First Century",

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note = "11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 1989 : Images of the Twenty-First Century ; Conference date: 09-11-1989 Through 12-11-1989",

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Bour, LJ, Ongerboer de Visser, BW, Speelman, JD & Koelman, JHTM 1989, Cumulative vibratory index and recovery curve parameters of the soleus H-reflex in dystonia and spasticity: A discriminant analysis. in Images of the Twenty-First Century: Proceedings of the Annual International Engineering in Medicine and Biology Society. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, vol. 1989, IEEE, Los Alamitos, CA, pp. 997-999, 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 1989, Seattle, Washington, United States, 9/11/89. https://doi.org/10.1109/IEMBS.1989.95752

Cumulative vibratory index and recovery curve parameters of the soleus H-reflex in dystonia and spasticity: A discriminant analysis. / Bour, L.J.; Ongerboer de Visser, B.W.; Speelman, J.D. et al.
Images of the Twenty-First Century: Proceedings of the Annual International Engineering in Medicine and Biology Society. Los Alamitos, CA: IEEE, 1989. p. 997-999 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings; Vol. 1989).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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N2 - Soleus H-reflex studies were carried out in a control group consisting of 43 healthy individuals, 22 patients with upper motoneuron lesions having spasticity, and 6 patients with dystonia. H-M recruitment curves with and without vibration of the Achilles tendon as well as H-reflex recovery curves at H-max and half H-max intensity were determined. From the experimental data several variables were derived, such as the cumulative vibratory index and the local maxima and minima of the recovery curves. To assess the collective values of several features, a discriminant analysis was performed. The methods presented improve the specificity of the quantitative neurophysiological measure of dystonia and spasticity.

AB - Soleus H-reflex studies were carried out in a control group consisting of 43 healthy individuals, 22 patients with upper motoneuron lesions having spasticity, and 6 patients with dystonia. H-M recruitment curves with and without vibration of the Achilles tendon as well as H-reflex recovery curves at H-max and half H-max intensity were determined. From the experimental data several variables were derived, such as the cumulative vibratory index and the local maxima and minima of the recovery curves. To assess the collective values of several features, a discriminant analysis was performed. The methods presented improve the specificity of the quantitative neurophysiological measure of dystonia and spasticity.

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Bour LJ, Ongerboer de Visser BW, Speelman JD, Koelman JHTM. Cumulative vibratory index and recovery curve parameters of the soleus H-reflex in dystonia and spasticity: A discriminant analysis. In Images of the Twenty-First Century: Proceedings of the Annual International Engineering in Medicine and Biology Society. Los Alamitos, CA: IEEE. 1989. p. 997-999. (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings). doi: 10.1109/IEMBS.1989.95752

Cumulative vibratory index and recovery curve parameters of the soleus H-reflex in dystonia and spasticity: A discriminant analysis

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