Detection method of knee-joint motions using two linear accelerometers for pendulum test

Toshimasa Kusuhara, Kazuaki Jikuya, Takao Nakamura, Hiroyuki Michinishi, Yoshitake Yamamoto, Takuji Okamoto

Research output: Contribution to journalArticle


In order to solve nonlinear differential equations concerning with the spinal stretch reflexes in pendulum test, mutually synchronized values of angle, angular velocity and angular acceleration in the knee-joint are frequently used as their initial ones. In this study, we propose a method which can detect both angle and angular acceleration in the knee-joint at the same time by simple operations on the outputs of two accelerometers. Here, the principle of knee-joint motion detection, evaluation of amplitude accuracy in measured waveforms, that of synchronization accuracy are described in this order.

Original languageEnglish
JournalIEEJ Transactions on Electronics, Information and Systems
Issue number9
Publication statusPublished - 2011



  • Angle
  • Angular acceleration
  • Knee-joint motions
  • Linear accelerometer
  • Pendulum test

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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