Experimental evaluation of an assist chair for sit-to-stand on speed of flipping up a seat of chair

N. T.T. Suzuki, N. Tyler, A. Suda, H. Onishi, T. Muromaki, T. Watanabe

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Assist chairs with simple mechanism to flip up a seat at the front edge to assist sit-to-stand (STS) is well known as commercial products developed from around 1980. The speed of flipping up the seat on the assist chairs would play a key role how to adjust assisting STS in individual cases, but there is almost no discussion how the speed of flipping up the seat affects the benefit of assisting STS. The aim of study is to investigate the optimised speed of flipping up the seat of the assist chairs. As a first step, a motorised assist chair with controllable speed of flipping up the seat was developed and tested with four healthy participants in three seat height conditions; High:520mm, Middle:420mm, and Low:320mm without and with flipping up the seat at maximum speed 30degree/second. Significant main effect of assisting was found on peak vGRF at Low seat height (p<0.005) by Wilcoxon rank test. There was no significant effect at Middle (p=0.126) and High seat height (p=0.507). With assisting at the Low seat height, the reduction of peak vGRF means that the flipping up the seat successfully supports trunk movement and knee function to lift up the hip from the seat. All participants felt the assisting was effective to reduce the hardness of STS at the Low seat height. With further studies to optimise the speed of flipping the seat, the motorised assist chair in this study would provide a proper assist for individual STS movement, with leaving certain part of physical load for keeping muscle functioning.

本文言語English
ホスト出版物のタイトルICIIBMS 2017 - 2nd International Conference on Intelligent Informatics and Biomedical Sciences
出版社Institute of Electrical and Electronics Engineers Inc.
ページ239-242
ページ数4
ISBN(電子版)9781509066643
DOI
出版ステータスPublished - 2018 2 2
イベント2nd International Conference on Intelligent Informatics and Biomedical Sciences, ICIIBMS 2017 - Okinawa, Japan
継続期間: 2017 11 242017 11 26

出版物シリーズ

名前ICIIBMS 2017 - 2nd International Conference on Intelligent Informatics and Biomedical Sciences
2018-January

Other

Other2nd International Conference on Intelligent Informatics and Biomedical Sciences, ICIIBMS 2017
国/地域Japan
CityOkinawa
Period17/11/2417/11/26

ASJC Scopus subject areas

  • 人工知能
  • コンピュータ ネットワークおよび通信
  • 情報システム
  • 生体医工学
  • 安全性、リスク、信頼性、品質管理
  • 制御と最適化

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