A preliminary study of chairs with forward-sloping seats, and sitting postures

Abstract

A radiological study of sitting posture is reported. Lateral views of the spines of subjects were obtained whilst the subjects adopted each of three postures. The postures adopted were: standing erect at a table, sitting on a convenj tional typist’s chair at a table and sitting on a prototype chair at a table. The prototype chair had a forward tilting seat and a stabilising knee platform, Previous researchers have suggested that more erect sitting postures may be obtained by using chairs designed to permit users toy sit with an angle of hip flexion greater than 90°. The study described lends support to this view and the results are discussed with reference to current research on seating.