Relationships Among Cushion Type, Backrest Height, Seated Posture, and Reach of Wheelchair Users with Spinal Cord Injury

Springle, S.; Wootten, M.; Sawacha, Z.; thielman, G.: Relationships Among Cushion Type, Backrest Height, Seated Posture, and Reach of Wheelchair Users with Spinal Cord Injury. I: Journal of Spinal Cord Medicine, 2003(26(3)), s. 236-243.Language: Engelsk

Summary: The objective of this study was to determine the effect of cushion and backrest height on posture and reach and to determine the relationship between posture and UE reach using a randomized 2 x 3 repeated-measures factorial design. METHODS: Twenty-two subjects with spinal cord injury were tested in 6 configurations, including 3 types of cushions (segmented air, contoured viscous fluid/foam, and air/foam) and 2 of 3 backrest heights (referenced to T12, inferior scapular angle, and scapular spine) while performing unilateral and bilateral reaching tasks. Seated posture (pelvic tilt and torso angle) and American Spinal Injury Association (ASIA) score were also measured. RESULTS: Pelvic tilt and ASIA score were significant predictors of reach. No evidence was found indicating cushion type or backrest height affected reach or posture. No consistent patterns of posture were found across cushion types or backrest heights. CONCLUSIONS: The posture adopted by wheelchair users is a more important influence on UE reach than are the cushion or backrest height used. Sitting with increased posterior pelvic tilt enhanced stability and permitted greater reach. Because individuals adopt different postures when using different cushions and backrest heights, clinicians should monitor posture while assessing seating and function of wheelchair users.

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