Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of Joint Movements and Changes of Muscle Length During STS(sit-to-stand) at Various Sitting Heights in the Korean Elderly's daily life

한국 고령자의 일상생활 중 다양한 높이에서의 STS(sit-to-stand) 시 관절운동 특성 및 근길이 변화 분석

  • Hwang, S.J. (Dept of Biomed. Eng., Graduate School, Yonsei Univ.) ;
  • Son, J.S. (Dept of Biomed. Eng., Graduate School, Yonsei Univ.) ;
  • Kim, J.Y. (Dept of Biomed. Eng., Graduate School, Yonsei Univ.) ;
  • Kim, H.D. (Dept of Biomed. Eng., Graduate School, Yonsei Univ.) ;
  • Lim, D.H. (Dept of Biomed. Eng., Graduate School, Yonsei Univ.) ;
  • Kim, Y.H. (Dept of Biomed. Eng., Graduate School, Yonsei Univ.)
  • 황성재 (연세대학교 대학원 의공학과) ;
  • 손종상 (연세대학교 대학원 의공학과) ;
  • 김정윤 (연세대학교 대학원 의공학과) ;
  • 김현동 (연세대학교 대학원 의공학과) ;
  • 임도형 (연세대학교 대학원 의공학과) ;
  • 김영호 (연세대학교 대학원 의공학과)
  • Published : 2008.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Sit to stand(STS) movement is one of the most common activity in daily life. In addition, Korean traditionally stand up from various sitting heights in one's daily life compared to other foreigners. As Korea enter rapidly to the aging society, needs of the elderly's independent life are increasing. Therefore the importance of research about the analysis of elderly's activity in daily life is rapidly increasing. In this study, we analyzed joint movements and changes of muscle length during STS(sit-to-stand) at various sitting heights(table seat, bath seat, bottom) in the Korean elderly's daily life by using the motion analysis and musculoskeletal modeling. Ten Korean elderly and young were participated in this experiment. Three heights of sitting posture which could represent typical sitting in Korean daily life were chosen as table seat(42cm), bath seat(21cm) and bottom(0cm). As the results, the elderly showed both smaller knee/hip flexion and larger trunk flexion relatively in comparison to the young during table seat STS. The elderly also showed larger dorsiflexion and smaller ROM of knee, hip, trunk compared to the young during bath seat STS. Additionally, the elderly showed larger plantarflexion, hip flexion, smaller knee flexion and trunk flexion during the first half of bottom STS and larger knee flexion, hip flexion and trunk flexion during the second half of bottom STS. In addition, we could know contraction and relaxation characters of major muscles in lower limb during various STS through the analysis of changes in muscle length by musculoskeltal modeling.

Keywords