Does upper-limb muscular demand differ between preferred and nonpreferred sitting pivot transfer directions in individuals with a spinal cord injury?
Article Type: Brief article
Subject: Spinal cord injuries (Diagnosis)
Spinal cord injuries (Care and treatment)
Electromyography (Methods)
Rehabilitation (Research)
Author: Gagnon, Dany
Pub Date: 12/31/2009
Publication: Name: Journal of Rehabilitation Research & Development Publisher: Department of Veterans Affairs Audience: Academic Format: Magazine/Journal Subject: Health Copyright: COPYRIGHT 2009 Department of Veterans Affairs ISSN: 0748-7711
Issue: Date: Dec 31, 2009 Source Volume: 46 Source Issue: 9
Topic: Event Code: 310 Science & research
Geographic: Geographic Scope: United States Geographic Code: 1USA United States
Accession Number: 227281554

This study determined if upper-limb (UL) muscular effort was reduced when a person with spinal cord injury (SCI) performed a sitting pivot transfer in the preferred direction compared with that in the nonpreferred direction. The study group included 14 persons with SCI. Surface electromyography was used to record activity of key UL muscles bilaterally during sitting pivot transfers. These transfers were performed in each of the preferred and nonpreferred directions from each individual's wheelchair to a padded tub bench of even height. Similar peak muscular efforts were found between the preferred and nonpreferred transfer directions for all muscles. The peak muscular effort was also found to be similar between the leading and trailing ULs during the transfers in all muscles except one: the anterior deltoid solicited the most at the trailing UL. Comparable overall muscular work was calculated between the preferred and nonpreferred transfer directions for all muscles and between the leading and trailing ULs. These results indicate that direction preference expressed by individuals with SCI when transferring is not explained by relative muscular effort difference.

Dany Gagnon, PT, PhD, et al.
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