Tiltchair: Manipulative posture guidance by actively inclining the seat of an ofice chair

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We propose TiltChair, an actuated ofce chair that physically manipulates the user's posture by actively inclining the chair's seat to address problems associated with prolonged sitting. The system controls the inclination angle and motion speed with the aim of achieving manipulative but unobtrusive posture guidance. To demonstrate its potential, we frst built a prototype of TiltChair with a seat that could be tilted by pneumatic control. We then investigated the efects of the seat's inclination angle and motions on task performance and overall sitting experience through two experiments. The results show that the inclination angle mainly afects the difculty of maintaining one's posture, while the motion speed afected the conspicuousness and subjective acceptability of the motion. However, these seating conditions did not afect objective task performance. Based on these results, we propose a design space for facilitating efective seat-inclination behavior using the three dimensions of angle, speed, and continuity. Furthermore, we discuss promising applications.

Original languageEnglish
Title of host publicationCHI 2021 - Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems
Subtitle of host publicationMaking Waves, Combining Strengths
PublisherAssociation for Computing Machinery
ISBN (Electronic)9781450380966
DOIs
Publication statusPublished - 2021 May 6
Event2021 CHI Conference on Human Factors in Computing Systems: Making Waves, Combining Strengths, CHI 2021 - Virtual, Online, Japan
Duration: 2021 May 82021 May 13

Publication series

NameConference on Human Factors in Computing Systems - Proceedings

Conference

Conference2021 CHI Conference on Human Factors in Computing Systems: Making Waves, Combining Strengths, CHI 2021
Country/TerritoryJapan
CityVirtual, Online
Period21/5/821/5/13

Keywords

  • Actuated furniture
  • Adaptive workplaces
  • Posture change
  • Well-being

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Computer Graphics and Computer-Aided Design
  • Software

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