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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/87096


    Title: Investigation of Peak Pressure Index Parameters for People with Spinal Cord Injury Using Wheelchair Tilt-in-Space and Recline: Methodology and Preliminary Report
    Authors: 龍希文;Yang, T.D.;Yang, T.D.;Crane, B.A.;Crane, B.A.;Elliott, J.;Elliott, J.;Dicianno, B.;Dicianno, B.E.;Jan, Y.K.;Jan, Y.K.
    Contributors: 創意商品設計學系
    Date: 2014-06
    Issue Date: 2014-11-20 15:10:49 (UTC+8)
    Abstract: The purpose of this study was to determine the effect of the sensel window's location and size when calculating the peak pressure index (PPI) of pressure mapping with varying degrees of wheelchair tilt-in-space (tilt) and recline in people with spinal cord injury (SCI). Thirteen power wheelchair users were recruited into this study. Six combinations of wheelchair tilt (15°, 25°, and 35°) and recline (10° and 30°) were used by the participants in random order. Displacements of peak pressure and center of pressure were extracted from the left side of the mapping system. Normalized PPI was computed for three sensel window dimensions (3 sensels × 3 sensels, 5 × 5, and 7 × 7). At least 3.33 cm of Euclidean displacement of peak pressures was observed in the tilt and recline. For every tilt angle, peak pressure displacement was not significantly different between 10° and 30° recline, while center of pressure displacement was significantly different (P < .05). For each recline angle, peak pressure displacement was not significantly different between pairs of 15°, 25°, and 35° tilt, while center of pressure displacement was significantly different between 15° versus 35° and 25° versus 35°. Our study showed that peak pressure displacement occurs in response to wheelchair tilt and recline, suggesting that the selected sensel window locations used to calculate PPI should be adjusted during changes in wheelchair configuration.
    Relation: JOURNAL OF BIOMEDICINE AND BIOTECHNOLOGY;2014:508583.
    Appears in Collections:[Department of Creative Product Design] Journal Article

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