Modeling the Range of Motion and the Degree of Posture Discomfort of the Thumb Joints

  • Natsuki MiyataEmail author
  • Yuya Yoneoka
  • Yusuke Maeda
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 822)


In this paper, we show a method to model coordinated joint range of motion (ROM) of the thumb with subjective discomfort by exhaustively testing various postures. Coordinated joint ROM was modeled by capturing twelve exercises for four adults without any hand disabilities. Posture candidates were then generated for the discomfort experiment by uniformly sampling each subject’s ROM. Each subject was asked to answer if they felt it difficult to retain that posture for 10 s owing to pain or fatigue. The collected data from four subjects were converted into a discomfort possibility map.


Joint range of motion Reachability Posture discomfort Possibility map 



This work was partially supported by JSPS KAKENHI (Grant Number JP17H05918).


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.National Institute of Advanced Industrial Science and TechnologyTokyoJapan
  2. 2.Yokohama National UniversityYokohamaJapan

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