Comparison of Approximate Entropy Measure and Poincaré Plot Indexes for the Study of Gait Characteristics in the Elderly

Ahsan H. Khandoker, Marimuthu Palaniswami, Rezaul K. Begg

2006

Abstract

Early identification of at-risk gait helps prevent falls and injuries. The aim of this study is to investigate the relationship between approximate entropy (ApEn) and Poincaré plot indexes of elderly gait patterns and to test whether ApEn could be used as a reliable gait identifier for falls-risk. Minimum foot clearance (MFC) data of 14 elderly and 10 elderly participants with a history of falls and balance problems were analyzed. The ApEn values of MFC were significantly correlated with Poincaré plot indexes of MFC in the healthy elderly group, whereas correlations were absent in the elderly fallers group. Mean ApEn in the fallers group (0.18±0.03) was significantly higher than that in the healthy group (0.13±0.13). The higher ApEn values in the fallers group might indicate increased irregularities in their gait patterns and a loss of gait control mechanism. Results are useful for the early diagnosis of common gait pathologies.

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Paper Citation


in Harvard Style

H. Khandoker A., Palaniswami M. and K. Begg R. (2006). Comparison of Approximate Entropy Measure and Poincaré Plot Indexes for the Study of Gait Characteristics in the Elderly . In Proceedings of the 2nd International Workshop on Biosignal Processing and Classification - Volume 1: BPC, (ICINCO 2006) ISBN 978-972-8865-67-2, pages 144-151. DOI: 10.5220/0001225701440151


in Bibtex Style

@conference{bpc06,
author={Ahsan H. Khandoker and Marimuthu Palaniswami and Rezaul K. Begg},
title={Comparison of Approximate Entropy Measure and Poincaré Plot Indexes for the Study of Gait Characteristics in the Elderly},
booktitle={Proceedings of the 2nd International Workshop on Biosignal Processing and Classification - Volume 1: BPC, (ICINCO 2006)},
year={2006},
pages={144-151},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001225701440151},
isbn={978-972-8865-67-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 2nd International Workshop on Biosignal Processing and Classification - Volume 1: BPC, (ICINCO 2006)
TI - Comparison of Approximate Entropy Measure and Poincaré Plot Indexes for the Study of Gait Characteristics in the Elderly
SN - 978-972-8865-67-2
AU - H. Khandoker A.
AU - Palaniswami M.
AU - K. Begg R.
PY - 2006
SP - 144
EP - 151
DO - 10.5220/0001225701440151