The Influence of Backrest Inclination on Buttock Pressureopen accessThe Influence of Backrest Inclination on Buttock Pressure
- Other Titles
- The Influence of Backrest Inclination on Buttock Pressure
- Authors
- 박언진; 장성호
- Issue Date
- Dec-2011
- Publisher
- 대한재활의학회
- Keywords
- Wheelchair; Pressure ulcer; Backrest; Inclination
- Citation
- Annals of Rehabilitation Medicine, v.35, no.6, pp.897 - 906
- Indexed
- KCI
- Journal Title
- Annals of Rehabilitation Medicine
- Volume
- 35
- Number
- 6
- Start Page
- 897
- End Page
- 906
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/166852
- DOI
- 10.5535/arm.2011.35.6.897
- ISSN
- 2234-0645
- Abstract
- Objective To assess the effects of backrest inclination of a wheelchair on buttock pressures in spinal cord injured (SCI) patients and normal subjects.
Method The participants were 22 healthy subjects and 22 SCI patients. Buttock pressures of the participants were measured by a Tekscan® pressure sensing mat and software while they were sitting in a reclining wheelchair.
Buttock pressures were recorded for 90°, 100°, 110°, 120° and 130° seat-to-back angles at the ischial tuberosity (IT)and sacrococcygeal (SC) areas. Recordings were made at each angle over four seconds at a sampling rate of 10 Hz.
Results The side-to-side buttock pressure differences in the IT area for the SCI patients was signifi cantly greater than for the normal subjects. There was no signifi cant diff erence between the SCI patients and the normal subjects in the buttock pressure change pattern of the IT area. Significant increases in pressure on the SC area were found as backrest inclination angle was changed to 90o, 100o and 110° in the normal subjects, but no signifi cant diff erences were found in the SCI patients.
Conclusion Most of the SCI patients have freeform posture in wheelchairs, and this leads to an uneven distribution of buttock pressure. In the SCI patients, the peak pressure in the IT area reduced as the backrest angle was increased, but peak pressure at the SC area remained relatively unchanged. To reduce buttock pressure and prevent pressure ulcers and enhance ulcer healing, it can be helpful for tetraplegic patients, to have wheelchair seat-to-back angles above 120°.
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