An empirical study of preferred settings for lumbar support on adjustable office chairs

Ergonomics
N ColemanG Ellitt

Abstract

The preferred settings for lumbar support height and depth of 43 male and 80 female office workers were investigated. All subjects were equipped with identical modern office chairs with foam-padded backrests adjustable in both height and depth. Measurements of lumbar support settings were recorded in the workplace, outside of working hours, on four different occasions, over a 5 week period. Preferred lumbar support height and depth settings extended to both extremes of the adjustment range. The mean preferred height setting was 190 mm above the compressed seat surface. The mean depth setting (horizontal distance from front of seat to lumbar support point) was 387 mm. A regression model examining the effects of standing height, Body Mass Index (BMI) and gender on mean preferred lumbar support height showed a significant relationship between preferred height and BMI. Higher lumbar supports were chosen by subjects with greater BMIs. Gender and standing height were not associated with preferred lumbar support height settings. Preferred lumbar support depth was not significantly associated with standing height, gender or BMI. Older subjects were more likely to readjust their lumbar support from a disrupted position than younger subj...Continue Reading

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Citations

Jun 9, 2005·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Ismail BejiaNaceur Bergaoui
Apr 20, 2002·Ergonomics·S J LeggW Milicich
Jul 11, 2013·BioMed Research International·Einas Al-EisaGaneswara Rao Melam
Feb 6, 2007·Applied Ergonomics·Steven M Carcone, Peter J Keir
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Apr 8, 2011·Human Factors·Mark E BendenJerome Congleton
Sep 6, 2011·Perspectives in Public Health·Peter Buckle, Jessica Buckle

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