Some Effects of Lumbar Support Contour on Driver Seated Posture 950141
An appropriately contoured lumbar support is widely regarded as an essential component of a comfortable 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.
Citation: Reed, M., Schneider, L., and Eby, B., "Some Effects of Lumbar Support Contour on Driver Seated Posture," SAE Technical Paper 950141, 1995, https://doi.org/10.4271/950141. Download Citation
Author(s):
Matthew P. Reed, Lawrence W. Schneider, Bethany A. H. Eby
Affiliated:
University of Michigan Transportation Research Institute
Pages: 14
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Human Factors in Vehicle Design: Lighting, Seating, and Advanced Electronics-SP-1088, SAE 1995 Transactions: Journal of Passenger Cars-V104-6
Related Topics:
Vehicle drivers
Anthropometrics
Comfort
Simulators
Seats and seating
Documentation
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