Bio-kinematic design of individualized lift-assist devices

S. M.F. Reimer, K. Abdul-Sater, T. C. Lueth

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations


Rising from a chair is a fundamental movement in daily life and a prerequisite for independent functional ability. Yet, it remains one of the most biomechan-ically demanding activities as it requires high levels of neuromuscular coordination, muscle strength and postural control (Ellis et al. J Biomed Eng 6:113–120 (1984), [3]). While standing up is considered a natural ubiquitous skill it becomes increasingly difficult with age. To prolong the independence of elderly we present a novel computational design procedure for lift-assist devices that are individualized to the user while complying with the limited space within the chair. Given marker-based sit-to-stand motion data task positions are defined to carry out a finite position synthesis of a four-bar linkage that provides user-specific guidance of a seat. The four-bar linkage combined with the lower limb of a user generates a biologically inspired six-bar linkage. Thus, accomplishing a bio-kinematic design of linkages where this contribution provides an exemplary design session.

Original languageEnglish
Title of host publicationNew Trends in Medical and Service Robots - Design, Analysis and Control
EditorsMichael Hofbaur, Manfred Husty
PublisherSpringer Netherlands
Number of pages14
ISBN (Print)9783319599717
StatePublished - 2018
Event5th International Workshop on Medical and Service Robots, MeSRob 2016 - Graz, Austria
Duration: 4 Jul 20166 Jul 2016

Publication series

NameMechanisms and Machine Science
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992


Conference5th International Workshop on Medical and Service Robots, MeSRob 2016


  • Bio-kinematics
  • Elderly
  • Four-bar linkage
  • Individualized
  • Lift-assist device
  • Sit-to-stand
  • Six-bar linkage


Dive into the research topics of 'Bio-kinematic design of individualized lift-assist devices'. Together they form a unique fingerprint.

Cite this