The University of Southampton
University of Southampton Institutional Repository

Effect of gravity on robot-assisted motor training after chronic stroke: a randomized trial

Effect of gravity on robot-assisted motor training after chronic stroke: a randomized trial
Effect of gravity on robot-assisted motor training after chronic stroke: a randomized trial
Objectives: to determine the efficacy of 2 distinct 6-week robot-assisted reaching programs compared with an intensive conventional arm exercise program (ICAE) for chronic, stroke-related upper-extremity (UE) impairment. To examine whether the addition of robot-assisted training out of the horizontal plane leads to improved outcomes.

Design: randomized controlled trial, single-blinded, with 12-week follow-up.

Setting: research setting in a large medical center.

Participants: adults (N=62) with chronic, stroke-related arm weakness stratified by impairment severity using baseline UE motor assessments.

Interventions: sixty minutes, 3 times a week for 6 weeks of robot-assisted planar reaching (gravity compensated), combined planar with vertical robot-assisted reaching, or intensive conventional arm exercise program.

Main outcome measure: UE Fugl-Meyer Assessment (FMA) mean change from baseline to final training.

Results: all groups showed modest gains in the FMA from baseline to final with no significant between group differences. Most change occurred in the planar robot group (mean change ± SD, 2.94±0.77; 95% confidence interval [CI], 1.40–4.47). Participants with greater motor impairment (n=41) demonstrated a larger difference in response (mean change ± SD, 2.29±0.72; 95% CI, 0.85–3.72) for planar robot-assisted exercise compared with the intensive conventional arm exercise program (mean change ± SD, 0.43±0.72; 95% CI, –1.00 to 1.86).

Conclusions: chronic UE deficits because of stroke are responsive to intensive motor task training. However, training outside the horizontal plane in a gravity present environment using a combination of vertical with planar robots was not superior to training with the planar robot alone
0003-9993
1754-1761
Conroy, Susan S.
869f9f8a-8ffc-4e7a-979a-7b8349cee7ee
Whitall, Jill
9761aefb-be80-4270-bc1f-0e726399376e
Dipietro, Laura
ec635e51-6a38-467c-aaa4-7cf48dbf9b36
Jones-Lush, Lauren M.
550170f5-7688-4ab8-8354-965348e6a60b
Zhan, Min
4ce417bd-67fb-4986-9c33-017840d3a55e
Finley, Margaret A.
6510036a-3ffa-4915-9a47-18cf96eea57f
Wittenberg, George F.
cac3e05a-b8bc-456d-b970-ebc43231fe90
Krebs, Hermano I.
d386a29f-8aff-44f8-bc69-3a336731e511
Bever, Christopher T.
d1350427-35a1-4cb3-b8bc-aa1c16c059ce
Conroy, Susan S.
869f9f8a-8ffc-4e7a-979a-7b8349cee7ee
Whitall, Jill
9761aefb-be80-4270-bc1f-0e726399376e
Dipietro, Laura
ec635e51-6a38-467c-aaa4-7cf48dbf9b36
Jones-Lush, Lauren M.
550170f5-7688-4ab8-8354-965348e6a60b
Zhan, Min
4ce417bd-67fb-4986-9c33-017840d3a55e
Finley, Margaret A.
6510036a-3ffa-4915-9a47-18cf96eea57f
Wittenberg, George F.
cac3e05a-b8bc-456d-b970-ebc43231fe90
Krebs, Hermano I.
d386a29f-8aff-44f8-bc69-3a336731e511
Bever, Christopher T.
d1350427-35a1-4cb3-b8bc-aa1c16c059ce

Conroy, Susan S., Whitall, Jill, Dipietro, Laura, Jones-Lush, Lauren M., Zhan, Min, Finley, Margaret A., Wittenberg, George F., Krebs, Hermano I. and Bever, Christopher T. (2011) Effect of gravity on robot-assisted motor training after chronic stroke: a randomized trial. Archives of Physical Medicine and Rehabilitation, 92 (11), 1754-1761. (doi:10.1016/j.apmr.2011.06.016). (PMID:21849168)

Record type: Article

Abstract

Objectives: to determine the efficacy of 2 distinct 6-week robot-assisted reaching programs compared with an intensive conventional arm exercise program (ICAE) for chronic, stroke-related upper-extremity (UE) impairment. To examine whether the addition of robot-assisted training out of the horizontal plane leads to improved outcomes.

Design: randomized controlled trial, single-blinded, with 12-week follow-up.

Setting: research setting in a large medical center.

Participants: adults (N=62) with chronic, stroke-related arm weakness stratified by impairment severity using baseline UE motor assessments.

Interventions: sixty minutes, 3 times a week for 6 weeks of robot-assisted planar reaching (gravity compensated), combined planar with vertical robot-assisted reaching, or intensive conventional arm exercise program.

Main outcome measure: UE Fugl-Meyer Assessment (FMA) mean change from baseline to final training.

Results: all groups showed modest gains in the FMA from baseline to final with no significant between group differences. Most change occurred in the planar robot group (mean change ± SD, 2.94±0.77; 95% confidence interval [CI], 1.40–4.47). Participants with greater motor impairment (n=41) demonstrated a larger difference in response (mean change ± SD, 2.29±0.72; 95% CI, 0.85–3.72) for planar robot-assisted exercise compared with the intensive conventional arm exercise program (mean change ± SD, 0.43±0.72; 95% CI, –1.00 to 1.86).

Conclusions: chronic UE deficits because of stroke are responsive to intensive motor task training. However, training outside the horizontal plane in a gravity present environment using a combination of vertical with planar robots was not superior to training with the planar robot alone

This record has no associated files available for download.

More information

Published date: November 2011
Organisations: Faculty of Health Sciences

Identifiers

Local EPrints ID: 361403
URI: http://eprints.soton.ac.uk/id/eprint/361403
ISSN: 0003-9993
PURE UUID: 2f6c6ccb-13ee-4bc4-be19-ff351a571eef

Catalogue record

Date deposited: 20 Jan 2014 10:25
Last modified: 14 Mar 2024 15:50

Export record

Altmetrics

Contributors

Author: Susan S. Conroy
Author: Jill Whitall
Author: Laura Dipietro
Author: Lauren M. Jones-Lush
Author: Min Zhan
Author: Margaret A. Finley
Author: George F. Wittenberg
Author: Hermano I. Krebs
Author: Christopher T. Bever

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×