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Kyung, Gyouhyung
Interaction & Experience Lab (ixlab)
Research Interests
  • Human Factors Engineering, UX, Ergonomic Product Design & Development

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Driver sitting comfort and discomfort (part II): Relationships with and prediction from interface pressure

Cited 33 times inthomson ciCited 48 times inthomson ci
Title
Driver sitting comfort and discomfort (part II): Relationships with and prediction from interface pressure
Author
Kyung, GyouhyungNussbaum, Maury A.
Keywords
Driving posture; Interface pressure; Packaging; Sitting comfort
Issue Date
2008-05
Publisher
ELSEVIER SCIENCE BV
Citation
INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS, v.38, no.5-6, pp.526 - 538
Abstract
Pressure at the driver-seat interface has been used as an objective method to assess seat design, yet existing evidence regarding its efficacy is mixed. The current study examined associations between three subjective ratings (overall, comfort, and discomfort) and 36 measures describing driver-seat interface pressure, and identified pressure level, contact area, and ratio (local to global) variables that could be effectively used to improve subjective responses. Each of 27 participants was involved in six separate driving sessions which included combinations of two seats (from vehicles ranked high and low on overall comfort), two vehicle classes (sedan and SUV), and two driving venues (lab-based and field). Several pressure variables were identified as more effective for assessing sitting comfort and discomfort across a range of individual statures. Based on the results, specific approaches are recommended to improve the sitting experience: (1) lower pressure ratios at the buttocks and higher pressure ratios at the upper and lower back; and (2) balanced pressure between the bilateral buttocks, and between the lower and upper body. Finally, separate analyses supported that human-seat interface pressure was more strongly related with overall and comfort ratings than with discomfort ratings. Relevance to industry: Several interface pressure variables were identified that showed associations with subjective responses during sitting. Use of these measures is suggested to improve the quality of car seats.
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DOI
10.1016/j.ergon.2007.08.011
ISSN
0169-8141
Appears in Collections:
DHE_Journal Papers
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