Seat cushion optimization: a comparison of interface pressure and tissue stiffness characteristics for spinal cord injured and elderly patients

Archives of Physical Medicine and Rehabilitation
D M Brienza, P E Karg

Abstract

A method for designing tissue deformation minimizing seat surfaces was evaluated. Pressure and stiffness criteria were used to optimize surface shape. The method's efficacy for patients with spinal cord injuries (SCI) and a comparison of cushion performance and interface characteristics with a group of 30 elderly patients are presented. Repeated measures, prospective study. University medical center. SCI (n=12), elderly (age 65 + years) [n=30]. One flat and two custom foam seat cushions. Interface pressure measured using a pressure sensing pad; tissue stiffness and pressure recorded on a rigid programmable seat surface. Pressure distributions on contoured cushions for the SCI group contained lower values than distributions on flat cushions. A comparison of the pressure data between the elderly and SCI showed that significant differences exist between interface characteristics. The SCI group had higher peak interface pressures for all cushions tested. Tissue stiffness measurements were similar for each group. Results showed improved effectiveness of custom contoured foam seat cushions versus flat foam cushions. The results suggest that pressure distributions for SCI are more sensitive to support cushion characteristics than for ...Continue Reading

References

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Citations

Jun 15, 2005·Archives of Physical Medicine and Rehabilitation·David M BrienzaYih-Kuen Jan
May 13, 2004·Assistive Technology : the Official Journal of RESNA·Stephen Sprigle, Larry Press
Jun 21, 2011·Journal of Tissue Viability·Vincenzo CascioliPeter W McCarthy
May 18, 1999·Archives of Physical Medicine and Rehabilitation·S P Burns, K L Betz
Feb 24, 2001·IEEE Transactions on Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Y LiJ Dansereau
Aug 30, 2005·Clinical Biomechanics·Nadine M Dunk, Jack P Callaghan
Feb 25, 2009·Archives of Physical Medicine and Rehabilitation·Mary Ann ReganUNKNOWN Spinal Cord Injury Rehabilitation Evidence Research Team
Jul 9, 2004·Archives of Physical Medicine and Rehabilitation·Ingrid Eitzen
Sep 18, 2013·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Jasper BosDimitra Dodou
Jan 23, 2016·Annals of Rehabilitation Medicine·Kang Hee ChoSeung-Chan Ahn
Jun 12, 2003·International Journal of Rehabilitation Research. Internationale Zeitschrift Für Rehabilitationsforschung. Revue Internationale De Recherches De Réadaptation·Evandro Guimaraes, William C Mann
Apr 21, 2005·Advances in Skin & Wound Care·David M Brienza, Mary Jo Geyer

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