On the use of inertial measurement units for real-time quantification of pathological tremor amplitude and frequency

J. A. Gallego*, E. Rocon, J. O. Roa, J. C. Moreno, A. D. Koutsou, Jose L Pons

*Corresponding author for this work

Research output: Contribution to journalConference article

7 Scopus citations

Abstract

Quantification of pathological tremor amplitude and frequency is fundamental for clinical diagnosis of neurological disorders and for robotics based-tremor suppression. In this work, a novel approach for real-time estimation of tremor amplitude and frequency using inertial sensors is presented. First, a miniaturized MEMS sensor is attached to the patient's hand and calibrated with respect to it. This procedure permits to directly obtain wrist flexion/extension. Afterwards, a two stage algorithm for tremor estimation is implemented. It consists of a tracking algorithm that isolates tremorous movement, followed by an adaptive filter that estimates tremor parameters. The proposed technique has inherent zero phase, providing a tremor amplitude error of 0.3766 rad/s.

Original languageEnglish (US)
Pages (from-to)1219-1222
Number of pages4
JournalProcedia Chemistry
Volume1
Issue number1
DOIs
StatePublished - Sep 1 2009
EventEurosensors 23rd Conference - Lausanne, Switzerland
Duration: Sep 6 2009Sep 9 2009

Keywords

  • Adaptive Signal Processing
  • Inertial Measurement Unit
  • Kalman Filter
  • MEMS
  • Pathological Tremor

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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