An anthropometric study of manual and powered wheelchair users

Department of Industrial Engineering, University at Buffalo, State University of New York, 342 Bell Hall, P.O. Box 602050, Buffalo, NY 14260-2050, USA
International Journal of Industrial Ergonomics (Impact Factor: 1.21). 03/2004; DOI: 10.1016/j.ergon.2003.10.003

ABSTRACT The purpose of this study was to evaluate the structural anthropometric dimensions of adult wheelchair users as part of a larger project that involved developing a database of the structural characteristics and functional abilities of wheelchair users. Measurements were made on 121 adult manual and powered wheelchair users with an electromechanical probe that registered the three-dimensional locations of 36 body and wheelchair landmarks. Thirty-one body and wheelchair dimensions (e.g., heights, breadths, depths) were calculated from the three-dimensional coordinate data. Tests of distributional normality showed that less than 1/3 of the dimensions were not normally distributed. ANOVA showed significant differences between powered and manual chair users, and women and men for only some of the anthropometric dimensions. The results of this study provide anthropometric information for a small and diverse group of wheelchair users using new measurement methods that may have value for three-dimensional human modeling and CAD applications.Relevance to industryAnthropometric data of wheelchair users can be applied toward the universal design of occupational environments and products that afford greater usability for wheelchair mobile user populations that are usually not considered in the design process.

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    ABSTRACT: This study was conducted for one-hand users including hemiplegic clients currently using standard manual wheelchairs, so as to analyze their specific problems and recommend solutions regarding usage. Thirty hemiplegic clients who were admitted to rehabilitation and convalescent hospitals participated as subjects. The research tools were standard manual wheelchairs commonly used by people with impaired gait and a "one-hand drivable manual wheelchair," which was developed for this study. The Wheelchair Skills Test (WST) was adopted for the objective assessment tool, while drivability, convenience, difference, and acceptability were developed for the subjective evaluation tools. The assessment procedures comprise two phases of pre-assessment and post-assessment. In the pre-assessment phase, the WST and subjective evaluation (drivability, convenience) were conducted using the existing standard manual wheelchair and with/without use of a foot to control the wheelchair. In the post-assessment phase, the WST and subjective evaluation (drivability, convenience, difference, acceptability) were also carried out using the developed one-hand drivable manual wheelchair. The results showed that the highest pass rate recorded for the WST items was 3.3% when the participants drove standard manual wheelchairs without the use of either foot and 96.7% when using the manual wheelchairs equipped with developed device. As compared to the existing wheelchair, statistical results showed significant effects on the WST, drivability, convenience, difference and acceptability when the participants drove wheelchairs equipped with the developed device. These findings imply that the one-hand drivable wheelchair equipped with the developed device can be an active and effective solution for hemiplegic clients using existing manual wheelchairs to increase their mobility and occupational performance. Copyright © 2014 Elsevier Ltd and The Ergonomics Society. All rights reserved.
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    ABSTRACT: This study measured the anthropometric characteristics of the perineum among Chinese young women. The three-dimensional surface of the perineum was reconstructed to design an opening shape for a female urination device. Twenty-four young healthy females participated in this study. The width of the perineal furrow, the diameter of the ischial tuberosity, the distance from the exterior urethral opening to the anus, the distance from the exterior urethral opening to the tuberosities, and the distance from the tuberosities to the anus were measured using the Martin measurement approach. The perineum was then scanned using a three-dimensional scanner with raster display technology. The scanned data were used for three-dimensional shape reconstruction. From the measurements, three types of relative positions among the exterior urethral opening, ischial tuberosity, and anus were discovered. The results from this study not only advance our understanding of the anthropometric measurements of the perineum but also provide anthropometric information for the design of the opening shape of a female urination device.
    International Journal of Industrial Ergonomics 03/2015; 46. DOI:10.1016/j.ergon.2015.01.004 · 1.21 Impact Factor


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