Full Band Spectra Analysis of Gait Acceleration Signals for Peripheral Arterial Disease Patients
Peripheral arterial disease (PAD) is an artherosclerotic occlusive disorder of distal arteries, which can give rise to the intermittent claudication (IC) phenomenon, i.e., limb pain and necessity to stop. PAD patients with IC have altered their gait, increasing the fall risk. Several gait analysis w...
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doaj-6e030c955b304a5d94c8642d02c48bd32020-11-24T23:56:39ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2018-08-01910.3389/fphys.2018.01061343758Full Band Spectra Analysis of Gait Acceleration Signals for Peripheral Arterial Disease PatientsMihaela I. Chidean0Óscar Barquero-Pérez1Rebeca Goya-Esteban2Alberto Sánchez Sixto3Blanca de la Cruz Torres4Jose Naranjo Orellana5Elena Sarabia Cachadiña6Antonio J. Caamaño7Signal Theory and Communications Department, University Rey Juan Carlos, Fuenlabrada, SpainSignal Theory and Communications Department, University Rey Juan Carlos, Fuenlabrada, SpainSignal Theory and Communications Department, University Rey Juan Carlos, Fuenlabrada, SpainPhysical Activity and Sports Department, University CEU San Pablo, Seville, SpainPhysiotherapy Department, University of Seville, Seville, SpainSports and Computer Science Department, University Pablo de Olavide, Seville, SpainPhysical Activity and Sports Department, University CEU San Pablo, Seville, SpainSignal Theory and Communications Department, University Rey Juan Carlos, Fuenlabrada, SpainPeripheral arterial disease (PAD) is an artherosclerotic occlusive disorder of distal arteries, which can give rise to the intermittent claudication (IC) phenomenon, i.e., limb pain and necessity to stop. PAD patients with IC have altered their gait, increasing the fall risk. Several gait analysis works have studied acceleration signals (from sensors) to characterize the gait. One common technique is spectral analysis. However, this approach mainly uses dominant frequency (fd) to characterize gait patterns, and in a narrow spectral band, disregarding the full spectra information. We propose to use a full band spectral analysis (up to 15 Hz) and the fundamental frequency (f0) in order to completely characterize gait for both control subjects and PAD patients. Acceleration gait signals were recorded using an acquisition equipment consisting of four wireless sensor nodes located at ankle and hip height on both sides. Subjects had to walk, free-fashion, up to 10 min. The analysis of the periodicity of the gait acceleration signals, showed that f0 is statistically higher (p < 0.05) in control subjects (0.9743 ± 0.0716) than in PAD patients (0.8748 ± 0.0438). Moreover, the spectral envelope showed that, in controls, the power spectral density distribution is higher than in PAD patients, and that the power concentration is hither around the fd. In conclusion, full spectra analysis allowed to better characterize gait in PAD patients than classical spectral analysis. It allowed to better discriminate PAD patients and control subjects, and it also showed promising results to assess severity of PAD.https://www.frontiersin.org/article/10.3389/fphys.2018.01061/fullperipheral arterial diseasegaitfull spectralfundamental frequencyspectral envelope |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mihaela I. Chidean Óscar Barquero-Pérez Rebeca Goya-Esteban Alberto Sánchez Sixto Blanca de la Cruz Torres Jose Naranjo Orellana Elena Sarabia Cachadiña Antonio J. Caamaño |
spellingShingle |
Mihaela I. Chidean Óscar Barquero-Pérez Rebeca Goya-Esteban Alberto Sánchez Sixto Blanca de la Cruz Torres Jose Naranjo Orellana Elena Sarabia Cachadiña Antonio J. Caamaño Full Band Spectra Analysis of Gait Acceleration Signals for Peripheral Arterial Disease Patients Frontiers in Physiology peripheral arterial disease gait full spectral fundamental frequency spectral envelope |
author_facet |
Mihaela I. Chidean Óscar Barquero-Pérez Rebeca Goya-Esteban Alberto Sánchez Sixto Blanca de la Cruz Torres Jose Naranjo Orellana Elena Sarabia Cachadiña Antonio J. Caamaño |
author_sort |
Mihaela I. Chidean |
title |
Full Band Spectra Analysis of Gait Acceleration Signals for Peripheral Arterial Disease Patients |
title_short |
Full Band Spectra Analysis of Gait Acceleration Signals for Peripheral Arterial Disease Patients |
title_full |
Full Band Spectra Analysis of Gait Acceleration Signals for Peripheral Arterial Disease Patients |
title_fullStr |
Full Band Spectra Analysis of Gait Acceleration Signals for Peripheral Arterial Disease Patients |
title_full_unstemmed |
Full Band Spectra Analysis of Gait Acceleration Signals for Peripheral Arterial Disease Patients |
title_sort |
full band spectra analysis of gait acceleration signals for peripheral arterial disease patients |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Physiology |
issn |
1664-042X |
publishDate |
2018-08-01 |
description |
Peripheral arterial disease (PAD) is an artherosclerotic occlusive disorder of distal arteries, which can give rise to the intermittent claudication (IC) phenomenon, i.e., limb pain and necessity to stop. PAD patients with IC have altered their gait, increasing the fall risk. Several gait analysis works have studied acceleration signals (from sensors) to characterize the gait. One common technique is spectral analysis. However, this approach mainly uses dominant frequency (fd) to characterize gait patterns, and in a narrow spectral band, disregarding the full spectra information. We propose to use a full band spectral analysis (up to 15 Hz) and the fundamental frequency (f0) in order to completely characterize gait for both control subjects and PAD patients. Acceleration gait signals were recorded using an acquisition equipment consisting of four wireless sensor nodes located at ankle and hip height on both sides. Subjects had to walk, free-fashion, up to 10 min. The analysis of the periodicity of the gait acceleration signals, showed that f0 is statistically higher (p < 0.05) in control subjects (0.9743 ± 0.0716) than in PAD patients (0.8748 ± 0.0438). Moreover, the spectral envelope showed that, in controls, the power spectral density distribution is higher than in PAD patients, and that the power concentration is hither around the fd. In conclusion, full spectra analysis allowed to better characterize gait in PAD patients than classical spectral analysis. It allowed to better discriminate PAD patients and control subjects, and it also showed promising results to assess severity of PAD. |
topic |
peripheral arterial disease gait full spectral fundamental frequency spectral envelope |
url |
https://www.frontiersin.org/article/10.3389/fphys.2018.01061/full |
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