Detection 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

Abstract

In order to solve nonlinear differential equations concerning spinal stretch reflexes in the pendulum test, mutually synchronized values of the angle, angular velocity, and angular acceleration in the knee joint are frequently used as initial values. In this study, we propose a method which can detect both the angle and angular acceleration in the knee joint at the same time by simple operations on the outputs of two accelerometers. The principle of knee-joint motion detection, the evaluation of amplitude accuracy in the measured waveforms, and the evaluation of synchronization accuracy are successively described. © 2012 Wiley Periodicals, Inc. Electron Comm Jpn, 95(7): 41-48, 2012; Published online in Wiley Online Library (). DOI 10.1002/ecj.11383

Original languageEnglish
Pages (from-to)41-48
Number of pages8
JournalElectronics and Communications in Japan
Volume95
Issue number7
DOIs
Publication statusPublished - Jul 2012

Fingerprint

angular acceleration
Angular acceleration
Accelerometer
pendulums
accelerometers
Pendulum
Pendulums
Accelerometers
Angle
Motion Detection
reflexes
Motion
evaluation
Evaluation
Angular velocity
Stretch
angular velocity
Waveform
Nonlinear Differential Equations
synchronism

Keywords

  • angle
  • angular acceleration
  • knee-joint motions
  • linear accelerometer
  • pendulum test

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Physics and Astronomy(all)
  • Signal Processing
  • Applied Mathematics

Cite this

Detection of knee-joint motions using two linear accelerometers for pendulum test. / Kusuhara, Toshimasa; Jikuya, Kazuaki; Nakamura, Takao; Michinishi, Hiroyuki; Yamamoto, Yoshitake; Okamoto, Takuji.

In: Electronics and Communications in Japan, Vol. 95, No. 7, 07.2012, p. 41-48.

Research output: Contribution to journalArticle

Kusuhara, Toshimasa ; Jikuya, Kazuaki ; Nakamura, Takao ; Michinishi, Hiroyuki ; Yamamoto, Yoshitake ; Okamoto, Takuji. / Detection of knee-joint motions using two linear accelerometers for pendulum test. In: Electronics and Communications in Japan. 2012 ; Vol. 95, No. 7. pp. 41-48.
@article{0f575180164c489c9f00d57e7823af8a,
title = "Detection of knee-joint motions using two linear accelerometers for pendulum test",
abstract = "In order to solve nonlinear differential equations concerning spinal stretch reflexes in the pendulum test, mutually synchronized values of the angle, angular velocity, and angular acceleration in the knee joint are frequently used as initial values. In this study, we propose a method which can detect both the angle and angular acceleration in the knee joint at the same time by simple operations on the outputs of two accelerometers. The principle of knee-joint motion detection, the evaluation of amplitude accuracy in the measured waveforms, and the evaluation of synchronization accuracy are successively described. {\circledC} 2012 Wiley Periodicals, Inc. Electron Comm Jpn, 95(7): 41-48, 2012; Published online in Wiley Online Library (). DOI 10.1002/ecj.11383",
keywords = "angle, angular acceleration, knee-joint motions, linear accelerometer, pendulum test",
author = "Toshimasa Kusuhara and Kazuaki Jikuya and Takao Nakamura and Hiroyuki Michinishi and Yoshitake Yamamoto and Takuji Okamoto",
year = "2012",
month = "7",
doi = "10.1002/ecj.11383",
language = "English",
volume = "95",
pages = "41--48",
journal = "Electronics and Communications in Japan",
issn = "1942-9533",
publisher = "Scripta Technica",
number = "7",

}

TY - JOUR

T1 - Detection of knee-joint motions using two linear accelerometers for pendulum test

AU - Kusuhara, Toshimasa

AU - Jikuya, Kazuaki

AU - Nakamura, Takao

AU - Michinishi, Hiroyuki

AU - Yamamoto, Yoshitake

AU - Okamoto, Takuji

PY - 2012/7

Y1 - 2012/7

N2 - In order to solve nonlinear differential equations concerning spinal stretch reflexes in the pendulum test, mutually synchronized values of the angle, angular velocity, and angular acceleration in the knee joint are frequently used as initial values. In this study, we propose a method which can detect both the angle and angular acceleration in the knee joint at the same time by simple operations on the outputs of two accelerometers. The principle of knee-joint motion detection, the evaluation of amplitude accuracy in the measured waveforms, and the evaluation of synchronization accuracy are successively described. © 2012 Wiley Periodicals, Inc. Electron Comm Jpn, 95(7): 41-48, 2012; Published online in Wiley Online Library (). DOI 10.1002/ecj.11383

AB - In order to solve nonlinear differential equations concerning spinal stretch reflexes in the pendulum test, mutually synchronized values of the angle, angular velocity, and angular acceleration in the knee joint are frequently used as initial values. In this study, we propose a method which can detect both the angle and angular acceleration in the knee joint at the same time by simple operations on the outputs of two accelerometers. The principle of knee-joint motion detection, the evaluation of amplitude accuracy in the measured waveforms, and the evaluation of synchronization accuracy are successively described. © 2012 Wiley Periodicals, Inc. Electron Comm Jpn, 95(7): 41-48, 2012; Published online in Wiley Online Library (). DOI 10.1002/ecj.11383

KW - angle

KW - angular acceleration

KW - knee-joint motions

KW - linear accelerometer

KW - pendulum test

UR - http://www.scopus.com/inward/record.url?scp=84862567138&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862567138&partnerID=8YFLogxK

U2 - 10.1002/ecj.11383

DO - 10.1002/ecj.11383

M3 - Article

VL - 95

SP - 41

EP - 48

JO - Electronics and Communications in Japan

JF - Electronics and Communications in Japan

SN - 1942-9533

IS - 7

ER -