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Shoulder and elbow muscle activity during fully supported trajectory tracking in people who have had a stroke

Shoulder and elbow muscle activity during fully supported trajectory tracking in people who have had a stroke
Shoulder and elbow muscle activity during fully supported trajectory tracking in people who have had a stroke
An inability to perform tasks involving reaching is a common problem for stroke patients. Knowledge of how stroke participants’ upper limb muscle activation patterns firstly differ from neurologically intact participants and secondly change in response to an intervention will provide an insight into mechanisms associated with recovery of upper limb function.

In this study five chronic stroke participants undertook nine tracking tasks in which trajectory (orientation and length), duration, speed and resistance to movement were varied. The participants’ forearm was supported using a hinged arm-holder, which constrained their hand to move in a two dimensional plane. EMG signals were recorded from triceps, biceps, anterior deltoid, upper, middle and lower trapezius and pectoralis major prior to and after an intervention. Three participants received eighteen one hour treatment sessions and two attended seven additional sessions. During the intervention participants performed a similar range of tracking tasks with the addition of responsive electrical stimulation to their triceps muscle.

Pre intervention, timing of peak activity and amplitude of EMG of all stroke participants differed from neurologically intact participants. Post intervention statistically significant changes were observed towards normal in timing, amplitude and co-activation patterns.


stroke, electromyography, muscle activation patterns, reach, arm movement, robot
1050-6411
465-476
Hughes, A.M.
11239f51-de47-4445-9a0d-5b82ddc11dea
Freeman, C.
ccdd1272-cdc7-43fb-a1bb-b1ef0bdf5815
Burridge, J.
0110e9ea-0884-4982-a003-cb6307f38f64
Chappell, P.
2d2ec52b-e5d0-4c36-ac20-0a86589a880e
Lewin, P.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Rogers, E.
990fd784-1526-448f-8d55-66685622831d
Hughes, A.M.
11239f51-de47-4445-9a0d-5b82ddc11dea
Freeman, C.
ccdd1272-cdc7-43fb-a1bb-b1ef0bdf5815
Burridge, J.
0110e9ea-0884-4982-a003-cb6307f38f64
Chappell, P.
2d2ec52b-e5d0-4c36-ac20-0a86589a880e
Lewin, P.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Rogers, E.
990fd784-1526-448f-8d55-66685622831d

Hughes, A.M., Freeman, C., Burridge, J., Chappell, P., Lewin, P. and Rogers, E. (2010) Shoulder and elbow muscle activity during fully supported trajectory tracking in people who have had a stroke. Journal of Electromyography and Kinesiology, 20 (3), 465-476. (doi:10.1016/j.jelekin.2009.08.001). (PMID:19811934)

Record type: Article

Abstract

An inability to perform tasks involving reaching is a common problem for stroke patients. Knowledge of how stroke participants’ upper limb muscle activation patterns firstly differ from neurologically intact participants and secondly change in response to an intervention will provide an insight into mechanisms associated with recovery of upper limb function.

In this study five chronic stroke participants undertook nine tracking tasks in which trajectory (orientation and length), duration, speed and resistance to movement were varied. The participants’ forearm was supported using a hinged arm-holder, which constrained their hand to move in a two dimensional plane. EMG signals were recorded from triceps, biceps, anterior deltoid, upper, middle and lower trapezius and pectoralis major prior to and after an intervention. Three participants received eighteen one hour treatment sessions and two attended seven additional sessions. During the intervention participants performed a similar range of tracking tasks with the addition of responsive electrical stimulation to their triceps muscle.

Pre intervention, timing of peak activity and amplitude of EMG of all stroke participants differed from neurologically intact participants. Post intervention statistically significant changes were observed towards normal in timing, amplitude and co-activation patterns.


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Published date: June 2010
Keywords: stroke, electromyography, muscle activation patterns, reach, arm movement, robot
Organisations: Health Sciences

Identifiers

Local EPrints ID: 67230
URI: http://eprints.soton.ac.uk/id/eprint/67230
ISSN: 1050-6411
PURE UUID: 3914abe8-ea2f-40ff-9348-4f84348ffdb7
ORCID for A.M. Hughes: ORCID iD orcid.org/0000-0002-3958-8206
ORCID for J. Burridge: ORCID iD orcid.org/0000-0003-3497-6725

Catalogue record

Date deposited: 17 Aug 2009
Last modified: 07 Oct 2020 05:03

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Contributors

Author: A.M. Hughes ORCID iD
Author: C. Freeman
Author: J. Burridge ORCID iD
Author: P. Chappell
Author: P. Lewin
Author: E. Rogers

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