SOME EFFECTS OF LUMBAR SUPPORT CONTOUR ON DRIVER SEATED POSTURE

An appropriately contoured lumbar support is widely regarded as an essential component of a comforatble auto seat. A frequently stated objective for a lumbar support is to maintain the sitter's lumbar spine in a slightly extended, or lordotic, posture. Although sitters have been observed to sit with substantial lordosis in some short-duration testing, long-term postural interaction with a lumbar support has not been documented quantitatively in the automotive environment. A laboratory study was conducted to investigate driver posture with three seatback contours. Subjects from four anthropometric groups operated an interactive laboratory driving simulator for one-hour trials. Posture data were collected by means of a sonic digitizing system. The data identify driver-selected postures over time for three lumbar support contours. An increase of 25 mm in the lumbar support prominence from a flat contour did not substantially change lumbar spine posture. (A) For the covering abstract of the conference see IRRD 875189.

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  • English

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Filing Info

  • Accession Number: 00719716
  • Record Type: Publication
  • Source Agency: Institute for Road Safety Research, SWOV
  • ISBN: 1-56091-638-9
  • Files: ITRD
  • Created Date: Apr 26 1996 12:00AM