title: An evaluation of a tiltable office chair with respect to seat height, backrest position and task.
abstract: The amount of spontaneous movement during seated office work was estimated by analysing the tilting movements of a tiltable office chair. Both movement frequency and amplitude range were considered. The seat inclinations and subjective acceptability were also recorded. The seat was moved more frequently and with a greater range when adjusted 6 cm above popliteal level compared to 1 cm below, or when the backrest was pushed anteriorly or posteriorly compared to a middle position. The greatest acceptability occurred with the highest seat adjustment and the backrest in the middle position. Typing or desk-work influenced movement to a similar extent.
mesh_terms: D000328:Adult; D001416:Back Pain / Q000209:etiology; D006804:Ergonomics / Q000295:instrumentation; D005160:Facility Design and Construction / Q000592:standards*; D005260:Female; D006801:Humans; D007374:Interior Design and Furnishings / Q000592:standards*; D008297:Male; D009068:Movement; D011187:Posture; D014937:Work