Effect of model design, cushion construction, and interface pressure mats on interface pressure and immersion

被引:32
作者
Pipkin, Leigh [1 ]
Sprigle, Stephen [1 ]
机构
[1] Georgia Inst Technol, Sch Appl Physiol, Atlanta, GA 30332 USA
关键词
anatomic models; assistive technology; disability; interface pressure; pressure sensors; pressure ulcer prevention; rehabilitation; standards; test method; wheelchair seating; wheelchairs;
D O I
10.1682/JRRD.2007.06.0089
中图分类号
R49 [康复医学];
学科分类号
100215 ;
摘要
Measuring interface pressure (IP) is one way to characterize cushion performance in the clinic and laboratory. This study explored how the presence of four commercially available IP mats affected IP on and immersion of two buttocks models. We loaded seven cushions with each buttocks model and captured pressure data using FSA sensors (Vista Medical Ltd; Winnipeg, Manitoba, Canada). Analysis was performed to compare pressure magnitude and immersion. Overall, both pressure magnitude and immersion changed after mat introduction. A significant interaction existed between cushion and mat condition and cushion and model for all variables. Introducing an IP mat to the model-cushion interface alters the loading on the cushion. The mats bridged the contours of the model, causing a change in IP at the locations studied. Although immersion was statistically different between mat conditions, the magnitude of the difference was less than 1 mm once we accounted for the thickness of the mats. The significance of the cushion-mat interaction indicates that the mat effect differed across cushion design. Clinical and research users of pressure mats should consider the effect of mat presence, the effect of model design, and mat and buttocks interactions with cushions for successful use.
引用
收藏
页码:875 / 882
页数:8
相关论文
共 14 条
[1]   ACCURACY OF INTERFACE PRESSURE MEASUREMENT SYSTEMS [J].
ALLEN, V ;
RYAN, DW ;
LOMAX, N ;
MURRAY, A .
JOURNAL OF BIOMEDICAL ENGINEERING, 1993, 15 (04) :344-348
[2]  
Buis AWP, 1997, PROSTHET ORTHOT INT, V21, P179
[3]  
Ferguson-Pell M, 1993, Assist Technol, V5, P78
[4]  
Ferguson-Pell M. W., 1980, Engineering in Medicine, V9, P209, DOI 10.1243/EMED_JOUR_1980_009_052_02
[5]  
FERGUSONPELL M, 1992, TEAM REHAB REPORT, V3, P28
[6]  
International Organization for Standardization (ISO), 2007, 1684022007 ISO
[7]  
Nicholson N., 2001, Proceedings of the 24th Rehabilitation Engineering and Assistive Technology Society of North America Conference, P286
[8]   Scientific validation of two commercial pressure sensor systems for prosthetic socket fit [J].
Polliack, AA ;
Sieh, RC ;
Craig, DD ;
Landsberger, S ;
McNeil, DR ;
Ayyappa, E .
PROSTHETICS AND ORTHOTICS INTERNATIONAL, 2000, 24 (01) :63-73
[9]   Laboratory and clinical tests of a prototype pressure sensor for clincial assessment of prosthetic socket fit [J].
Polliack, AA ;
Craig, DD ;
Sieh, RC ;
Landsberger, S ;
McNeal, DR .
PROSTHETICS AND ORTHOTICS INTERNATIONAL, 2002, 26 (01) :23-34
[10]   Changes in interface pressure and stump shape over time: preliminary results from a trans-tibial amputee subject [J].
Sanders, JE ;
Greve, JM ;
Clinton, C ;
Hafner, BJ .
PROSTHETICS AND ORTHOTICS INTERNATIONAL, 2000, 24 (02) :163-168