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      Seat pan and backrest pressure distribution while sitting in office chairs.

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          Abstract

          Nowadays, an increasing amount of time is spent seated, especially in office environments, where sitting comfort and support are increasingly important due to the prevalence of musculoskeletal disorders. The aim of this study was to develop a methodology for chair-specific sensor mat calibration, to evaluate the interconnections between specific pressure parameters and to establish those that are most meaningful and significant in order to differentiate pressure distribution measures between office chairs. The shape of the exponential calibration function was highly influenced by the material properties and geometry of the office chairs, and therefore a chair-specific calibration proved to be essential. High correlations were observed between the eight analysed pressure parameters, whereby the pressure parameters could be reduced to a set of four and three parameters for the seat pan and the backrest respectively. In order to find significant differences between office chairs, gradient parameters should be analysed for the seat pan, whereas for the backrest almost all parameters are suitable.

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          Author and article information

          Journal
          Appl Ergon
          Applied ergonomics
          Elsevier BV
          1872-9126
          0003-6870
          Mar 2016
          : 53 Pt A
          Affiliations
          [1 ] Institute for Biomechanics, ETH Zürich, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland. Electronic address: zempr@ethz.ch.
          [2 ] Institute for Biomechanics, ETH Zürich, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland.
          Article
          S0003-6870(15)30062-4
          10.1016/j.apergo.2015.08.004
          26674398
          a40192b6-0d9e-4283-b81d-39f18b29c5e7
          History

          Chair-specific calibration,Pressure distribution,Sitting behaviour

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