Reliability of surface electromyography timing parameters in gait in cervical spondylotic myelopathy.

Hdl Handle:
http://hdl.handle.net/10147/207318
Title:
Reliability of surface electromyography timing parameters in gait in cervical spondylotic myelopathy.
Authors:
Malone, Ailish; Meldrum, Dara; Gleeson, John; Bolger, Ciaran
Affiliation:
Physiotherapy Department, Beaumont Hospital, Dublin, Ireland. ailishmcd@gmail.com
Citation:
J Electromyogr Kinesiol. 2011 Dec;21(6):1004-10. Epub 2011 Oct 8.
Journal:
Journal of electromyography and kinesiology : official journal of the, International Society of Electrophysiological Kinesiology
Issue Date:
1-Feb-2012
URI:
http://hdl.handle.net/10147/207318
DOI:
10.1016/j.jelekin.2011.09.003
PubMed ID:
21986038
Abstract:
The aims of this study were to validate a computerised method to detect muscle activity from surface electromyography (SEMG) signals in gait in patients with cervical spondylotic myelopathy (CSM), and to evaluate the test-retest reliability of the activation times designated by this method. SEMG signals were recorded from rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), and medial gastrocnemius (MG), during gait in 12 participants with CSM on two separate test days. Four computerised activity detection methods, based on the Teager-Kaiser Energy Operator (TKEO), were applied to a subset of signals and compared to visual interpretation of muscle activation. The most accurate method was then applied to all signals for evaluation of test-retest reliability. A detection method based on a combined slope and amplitude threshold showed the highest agreement (87.5%) with visual interpretation. With respect to reliability, the standard error of measurement (SEM) of the timing of RF, TA and MG between test days was 5.5% stride duration or less, while the SEM of BF was 9.4%. The timing parameters of RF, TA and MG designated by this method were considered sufficiently reliable for use in clinical practice, however the reliability of BF was questionable.
Language:
eng
ISSN:
1873-5711 (Electronic); 1050-6411 (Linking)

Full metadata record

DC FieldValue Language
dc.contributor.authorMalone, Ailishen_GB
dc.contributor.authorMeldrum, Daraen_GB
dc.contributor.authorGleeson, Johnen_GB
dc.contributor.authorBolger, Ciaranen_GB
dc.date.accessioned2012-02-01T10:04:44Z-
dc.date.available2012-02-01T10:04:44Z-
dc.date.issued2012-02-01T10:04:44Z-
dc.identifier.citationJ Electromyogr Kinesiol. 2011 Dec;21(6):1004-10. Epub 2011 Oct 8.en_GB
dc.identifier.issn1873-5711 (Electronic)en_GB
dc.identifier.issn1050-6411 (Linking)en_GB
dc.identifier.pmid21986038en_GB
dc.identifier.doi10.1016/j.jelekin.2011.09.003en_GB
dc.identifier.urihttp://hdl.handle.net/10147/207318-
dc.description.abstractThe aims of this study were to validate a computerised method to detect muscle activity from surface electromyography (SEMG) signals in gait in patients with cervical spondylotic myelopathy (CSM), and to evaluate the test-retest reliability of the activation times designated by this method. SEMG signals were recorded from rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), and medial gastrocnemius (MG), during gait in 12 participants with CSM on two separate test days. Four computerised activity detection methods, based on the Teager-Kaiser Energy Operator (TKEO), were applied to a subset of signals and compared to visual interpretation of muscle activation. The most accurate method was then applied to all signals for evaluation of test-retest reliability. A detection method based on a combined slope and amplitude threshold showed the highest agreement (87.5%) with visual interpretation. With respect to reliability, the standard error of measurement (SEM) of the timing of RF, TA and MG between test days was 5.5% stride duration or less, while the SEM of BF was 9.4%. The timing parameters of RF, TA and MG designated by this method were considered sufficiently reliable for use in clinical practice, however the reliability of BF was questionable.en_GB
dc.language.isoengen_GB
dc.titleReliability of surface electromyography timing parameters in gait in cervical spondylotic myelopathy.en_GB
dc.contributor.departmentPhysiotherapy Department, Beaumont Hospital, Dublin, Ireland. ailishmcd@gmail.comen_GB
dc.identifier.journalJournal of electromyography and kinesiology : official journal of the, International Society of Electrophysiological Kinesiologyen_GB
dc.description.provinceLeinster-

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