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Using Commercial Activity Monitors to Measure Gait in Patients with Suspected iNPH: Implications for Ambulatory Monitoring

Objectives: This study seeks to validate the use of activity monitors to detect and record gait abnormalities, potentially identifying patients with idiopathic normal pressure hydrocephalus (iNPH) prior to the onset of cognitive or urinary symptoms. Methods: This study compared the step counts of fo...

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Detalles Bibliográficos
Autores principales: Gaglani, Shiv, Moore, Jessica, Haynes, M Ryan, Hoffberger, Jamie B, Rigamonti, Daniele
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cureus 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4689565/
https://www.ncbi.nlm.nih.gov/pubmed/26719825
http://dx.doi.org/10.7759/cureus.382
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author Gaglani, Shiv
Moore, Jessica
Haynes, M Ryan
Hoffberger, Jamie B
Rigamonti, Daniele
author_facet Gaglani, Shiv
Moore, Jessica
Haynes, M Ryan
Hoffberger, Jamie B
Rigamonti, Daniele
author_sort Gaglani, Shiv
collection PubMed
description Objectives: This study seeks to validate the use of activity monitors to detect and record gait abnormalities, potentially identifying patients with idiopathic normal pressure hydrocephalus (iNPH) prior to the onset of cognitive or urinary symptoms. Methods: This study compared the step counts of four common activity monitors (Omron Step Counter HJ-113, New Lifestyles 2000, Nike Fuelband, and Fitbit Ultra) to an observed step count in 17 patients with confirmed iNPH. Results: Of the four devices, the Fitbit Ultra (Fitbit, Inc., San Francisco, CA) provided the most accurate step count. The correlation with the observed step count was significantly higher (p<0.009) for the Fitbit Ultra than for any of the other three devices. Conclusions: These preliminary findings suggest that existing activity monitors have variable efficacy in the iNPH patient population and that the MEMS tri-axial accelerometer and algorithm of the Fitbit Ultra provides the most accurate gait measurements of the four devices tested.
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spelling pubmed-46895652015-12-30 Using Commercial Activity Monitors to Measure Gait in Patients with Suspected iNPH: Implications for Ambulatory Monitoring Gaglani, Shiv Moore, Jessica Haynes, M Ryan Hoffberger, Jamie B Rigamonti, Daniele Cureus Neurosurgery Objectives: This study seeks to validate the use of activity monitors to detect and record gait abnormalities, potentially identifying patients with idiopathic normal pressure hydrocephalus (iNPH) prior to the onset of cognitive or urinary symptoms. Methods: This study compared the step counts of four common activity monitors (Omron Step Counter HJ-113, New Lifestyles 2000, Nike Fuelband, and Fitbit Ultra) to an observed step count in 17 patients with confirmed iNPH. Results: Of the four devices, the Fitbit Ultra (Fitbit, Inc., San Francisco, CA) provided the most accurate step count. The correlation with the observed step count was significantly higher (p<0.009) for the Fitbit Ultra than for any of the other three devices. Conclusions: These preliminary findings suggest that existing activity monitors have variable efficacy in the iNPH patient population and that the MEMS tri-axial accelerometer and algorithm of the Fitbit Ultra provides the most accurate gait measurements of the four devices tested. Cureus 2015-11-17 /pmc/articles/PMC4689565/ /pubmed/26719825 http://dx.doi.org/10.7759/cureus.382 Text en Copyright © 2015, Gaglani et al. http://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Neurosurgery
Gaglani, Shiv
Moore, Jessica
Haynes, M Ryan
Hoffberger, Jamie B
Rigamonti, Daniele
Using Commercial Activity Monitors to Measure Gait in Patients with Suspected iNPH: Implications for Ambulatory Monitoring
title Using Commercial Activity Monitors to Measure Gait in Patients with Suspected iNPH: Implications for Ambulatory Monitoring
title_full Using Commercial Activity Monitors to Measure Gait in Patients with Suspected iNPH: Implications for Ambulatory Monitoring
title_fullStr Using Commercial Activity Monitors to Measure Gait in Patients with Suspected iNPH: Implications for Ambulatory Monitoring
title_full_unstemmed Using Commercial Activity Monitors to Measure Gait in Patients with Suspected iNPH: Implications for Ambulatory Monitoring
title_short Using Commercial Activity Monitors to Measure Gait in Patients with Suspected iNPH: Implications for Ambulatory Monitoring
title_sort using commercial activity monitors to measure gait in patients with suspected inph: implications for ambulatory monitoring
topic Neurosurgery
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4689565/
https://www.ncbi.nlm.nih.gov/pubmed/26719825
http://dx.doi.org/10.7759/cureus.382
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