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Automyoelectric control of functional electrical stimulation on the tibialis anterior:a pilot study with stroke patients

Automyoelectric control of functional electrical stimulation on the tibialis anterior:a pilot study with stroke patients
Automyoelectric control of functional electrical stimulation on the tibialis anterior:a pilot study with stroke patients
In this study of 9 subjects with dropped foot as a result of hemiplegia following stroke electromyographic (EMG) signals from the tibialis anterior (TA) muscle were used to control functional electrical stimulation (FES) of the same TA muscle group. The technique has been termed automyoelectric control of FES (AutoMeCFES). EMG signals were recorded using surface electrodes and processed digitally to allow continuous control of the amplitude of FES applied to the common peroneal nerve. Isometric force of dorsiflexion was measured with the patient sitting and the leg hanging freely with the knee at approximately 90°. A tracking test was used to compare the control and amplitude of the ankle torque with and without stimulation. Seven of the nine patients had increased torque amplitude of whom 3 had increased control with the system. An immediate carryover effect was seen in 1 subject. It is concluded that for selected patients AutoMeCFES can increase the muscle force of TA without compromising control.
stroke
0160-564X
287
Thorsen, Rune
a4d088b2-f723-483d-a70d-145b3f4a809a
Burridge, Jane
7c453775-c3ae-4d55-99af-2ed8600ca680
Donaldson, Nick
0e2d66b4-ce73-4cbb-8cad-d6d55c063d98
Ferrain, Maurizio
1345e3b3-e635-41db-8225-971b33e1735a
Norton, Johnathan
f3fe87fd-680b-4fc6-9244-e43db464799d
Veltink, Peter
ea137ad7-9db8-45c1-ae53-cbd88dba6ba1
Thorsen, Rune
a4d088b2-f723-483d-a70d-145b3f4a809a
Burridge, Jane
7c453775-c3ae-4d55-99af-2ed8600ca680
Donaldson, Nick
0e2d66b4-ce73-4cbb-8cad-d6d55c063d98
Ferrain, Maurizio
1345e3b3-e635-41db-8225-971b33e1735a
Norton, Johnathan
f3fe87fd-680b-4fc6-9244-e43db464799d
Veltink, Peter
ea137ad7-9db8-45c1-ae53-cbd88dba6ba1

Thorsen, Rune, Burridge, Jane, Donaldson, Nick, Ferrain, Maurizio, Norton, Johnathan and Veltink, Peter (2001) Automyoelectric control of functional electrical stimulation on the tibialis anterior:a pilot study with stroke patients. Artificial Organs, 26 (3), 287. (doi:10.1046/j.1525-1594.2002.00904.x).

Record type: Article

Abstract

In this study of 9 subjects with dropped foot as a result of hemiplegia following stroke electromyographic (EMG) signals from the tibialis anterior (TA) muscle were used to control functional electrical stimulation (FES) of the same TA muscle group. The technique has been termed automyoelectric control of FES (AutoMeCFES). EMG signals were recorded using surface electrodes and processed digitally to allow continuous control of the amplitude of FES applied to the common peroneal nerve. Isometric force of dorsiflexion was measured with the patient sitting and the leg hanging freely with the knee at approximately 90°. A tracking test was used to compare the control and amplitude of the ankle torque with and without stimulation. Seven of the nine patients had increased torque amplitude of whom 3 had increased control with the system. An immediate carryover effect was seen in 1 subject. It is concluded that for selected patients AutoMeCFES can increase the muscle force of TA without compromising control.

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More information

Published date: 2001
Keywords: stroke

Identifiers

Local EPrints ID: 18080
URI: http://eprints.soton.ac.uk/id/eprint/18080
ISSN: 0160-564X
PURE UUID: 9f427f8f-dd3a-4f4f-b24e-041bd81d85a3

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Date deposited: 02 Feb 2006
Last modified: 15 Mar 2024 06:02

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Contributors

Author: Rune Thorsen
Author: Jane Burridge
Author: Nick Donaldson
Author: Maurizio Ferrain
Author: Johnathan Norton
Author: Peter Veltink

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