Gait Parameters Change Prior to Freezing in Parkinson's Disease: A Data-Driven Study with Wearable Inertial Units
Freezing of gait (FoG) is a motor impairment among patients with advanced Parkinson's disease which is associated with falls and has a negative impact on a patient's quality of life. Wearable systems have been developed to detect FoG and to help patients resume walking by means of rhythmic...
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European Alliance for Innovation (EAI)
2015-12-01
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Online Access: | http://eudl.eu/doi/10.4108/eai.28-9-2015.2261411 |
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doaj-d81a2c66644a46f3a670884bc8e8dc442020-11-24T21:37:57ZengEuropean Alliance for Innovation (EAI)EAI Endorsed Transactions on Ambient Systems2032-927X2015-12-013101810.4108/eai.28-9-2015.2261411Gait Parameters Change Prior to Freezing in Parkinson's Disease: A Data-Driven Study with Wearable Inertial UnitsMaria Laura Ferster0Sinziana Mazilu1Gerhard Tröster2ETH ZurichETH Zurich; sinziana.mazilu@ife.ee.ethz.chETH ZurichFreezing of gait (FoG) is a motor impairment among patients with advanced Parkinson's disease which is associated with falls and has a negative impact on a patient's quality of life. Wearable systems have been developed to detect FoG and to help patients resume walking by means of rhythmical cueing. A step further is to predict the FoG and start cueing a few seconds before it happens, which might help patients avoid the gait freeze entirely. We characterize the gait parameters continuously with up to 10-12 seconds prior to FoG, observe if and how they change before subjects enter FoG, and compare them with the gait before turns. Moreover, we introduce and discuss new frequency-based features to describe gait and motor anomalies prior to FoG. Using inertial units mounted on the ankles of 5 subjects, we show specific changes in the stride duration and length with up to four seconds prior to FoG on all subjects, compared with turns. Moreover, the dominant frequency migrates towards [3, 8] Hz band with up to six seconds prior to FoG on 3 subjects. These findings open the path to real-time prediction of FoG from inertial measurement units.http://eudl.eu/doi/10.4108/eai.28-9-2015.2261411predictionwearable sensorsfreezing of gaitparkinson's diseasegait parametersmotor impairment analysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Maria Laura Ferster Sinziana Mazilu Gerhard Tröster |
spellingShingle |
Maria Laura Ferster Sinziana Mazilu Gerhard Tröster Gait Parameters Change Prior to Freezing in Parkinson's Disease: A Data-Driven Study with Wearable Inertial Units EAI Endorsed Transactions on Ambient Systems prediction wearable sensors freezing of gait parkinson's disease gait parameters motor impairment analysis |
author_facet |
Maria Laura Ferster Sinziana Mazilu Gerhard Tröster |
author_sort |
Maria Laura Ferster |
title |
Gait Parameters Change Prior to Freezing in Parkinson's Disease: A Data-Driven Study with Wearable Inertial Units |
title_short |
Gait Parameters Change Prior to Freezing in Parkinson's Disease: A Data-Driven Study with Wearable Inertial Units |
title_full |
Gait Parameters Change Prior to Freezing in Parkinson's Disease: A Data-Driven Study with Wearable Inertial Units |
title_fullStr |
Gait Parameters Change Prior to Freezing in Parkinson's Disease: A Data-Driven Study with Wearable Inertial Units |
title_full_unstemmed |
Gait Parameters Change Prior to Freezing in Parkinson's Disease: A Data-Driven Study with Wearable Inertial Units |
title_sort |
gait parameters change prior to freezing in parkinson's disease: a data-driven study with wearable inertial units |
publisher |
European Alliance for Innovation (EAI) |
series |
EAI Endorsed Transactions on Ambient Systems |
issn |
2032-927X |
publishDate |
2015-12-01 |
description |
Freezing of gait (FoG) is a motor impairment among patients with advanced Parkinson's disease which is associated with falls and has a negative impact on a patient's quality of life. Wearable systems have been developed to detect FoG and to help patients resume walking by means of rhythmical cueing. A step further is to predict the FoG and start cueing a few seconds before it happens, which might help patients avoid the gait freeze entirely. We characterize the gait parameters continuously with up to 10-12 seconds prior to FoG, observe if and how they change before subjects enter FoG, and compare them with the gait before turns. Moreover, we introduce and discuss new frequency-based features to describe gait and motor anomalies prior to FoG. Using inertial units mounted on the ankles of 5 subjects, we show specific changes in the stride duration and length with up to four seconds prior to FoG on all subjects, compared with turns. Moreover, the dominant frequency migrates towards [3, 8] Hz band with up to six seconds prior to FoG on 3 subjects. These findings open the path to real-time prediction of FoG from inertial measurement units. |
topic |
prediction wearable sensors freezing of gait parkinson's disease gait parameters motor impairment analysis |
url |
http://eudl.eu/doi/10.4108/eai.28-9-2015.2261411 |
work_keys_str_mv |
AT marialauraferster gaitparameterschangepriortofreezinginparkinsonsdiseaseadatadrivenstudywithwearableinertialunits AT sinzianamazilu gaitparameterschangepriortofreezinginparkinsonsdiseaseadatadrivenstudywithwearableinertialunits AT gerhardtroster gaitparameterschangepriortofreezinginparkinsonsdiseaseadatadrivenstudywithwearableinertialunits |
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