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Upper extremity improvements in chronic stroke: Coupled bilateral load training


Cauraugh, JH and Coombes, SA and Lodha, N and Naik, SK and Summers, JJ, Upper extremity improvements in chronic stroke: Coupled bilateral load training, Restorative Neurology and Neuroscience, 27, (1) pp. 17-25. ISSN 0922-6028 (2009) [Refereed Article]

DOI: doi:10.3233/RNN-2009-0455


Background: The current treatment intervention study determined the effect of coupled bilateral training (i.e., bilateral movements and EMG-triggered neuromuscular stimulation) and resistive load (mass) on upper extremity motor recovery in chronic stroke. Methods: Thirty chronic stroke subjects were randomly assigned to one of three behavioral treatment groups and completed 6 hours of rehabilitation in 4 days: (1) coupled bilateral training with a load on the unimpaired hand, (2) coupled bilateral training with no load on the unimpaired hand, and (3) control (no stimulation assistance or load). Results: Separate mixed design ANOVAs revealed improved motor capabilities by the coupled bilateral groups. From the pretest to the posttest, both the coupled bilateral no load and load groups moved a higher number of blocks and demonstrated more regularity in the sustained contraction task. Faster motor reaction times across test sessions for the coupled bilateral load group provided additional evidence for improved motor capabilities. Conclusions: Together these behavioral findings lend support to the contribution of coupled bilateral training with a load on the unimpaired arm to improved motor capabilities on the impaired arm. This evidence supports a neural explanation in that simultaneously moving both limbs during stroke rehabilitation training appears to activate balanced interhemispheric interactions while an extra load on the unimpaired limb provides stability to the system.

Item Details

Item Type:Refereed Article
Keywords:Chronic stroke, neurological rehabilitation, bilateral movement training, EMG-triggered neuromuscular stimulation, motor recovery
Research Division:Health Sciences
Research Group:Allied health and rehabilitation science
Research Field:Rehabilitation
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Summers, JJ (Professor Jeffery Summers)
ID Code:56543
Year Published:2009
Web of Science® Times Cited:39
Deposited By:Psychology
Deposited On:2009-05-12
Last Modified:2014-12-18

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