Quantitative and qualitative gait assessments in Parkinson’s disease patients
Background/Aim. Postural impairments and gait disorders in Parkinson's disease (PD) affect limits of stability, impaire postural adjustment, and evoke poor responses to perturbation. In the later stage of the disease, some patients can suffer from episodic features such as freezing of...
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| Format: | Article |
| Language: | English |
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Ministry of Defence of the Republic of Serbia, University of Defence, Belgrade
2014-01-01
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| Series: | Vojnosanitetski Pregled |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/0042-8450/2014/0042-84501400012D.pdf |
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| author | Đurić-Jovičić Milica D. Jovičić Nenad S. Radovanović Saša M. Kresojević Nikola D. Kostić Vladimir S. Popović Mirjana B. |
| author_facet | Đurić-Jovičić Milica D. Jovičić Nenad S. Radovanović Saša M. Kresojević Nikola D. Kostić Vladimir S. Popović Mirjana B. |
| author_sort | Đurić-Jovičić Milica D. |
| collection | DOAJ |
| description | Background/Aim. Postural impairments and gait disorders in Parkinson's
disease (PD) affect limits of stability, impaire postural adjustment, and
evoke poor responses to perturbation. In the later stage of the disease, some
patients can suffer from episodic features such as freezing of gait (FOG).
Objective gait assessment and monitoring progress of the disease can give
clinicians and therapist important information about changes in gait pattern
and potential gait deviations, in order to prevent concomitant falls. The aim
of this study was to propose a method for identification of freezing episodes
and gait disturbances in patients with PD. A wireless inertial sensor system
can be used to provide follow-up of the treatment effects or progress of the
disease. Methods. The system is simple for mounting a subject, comfortable,
simple for installing and recording, reliable and provides high-quality
sensor data. A total of 12 patients were recorded and tested. Software
calculates various gait parameters that could be estimated. User friendly
visual tool provides information about changes in gait characteristics,
either in a form of spectrogram or by observing spatiotemporal parameters.
Based on these parameters, the algorithm performs classification of strides
and identification of FOG types. Results. The described stride classification
was merged with an algorithm for stride reconstruction resulting in a useful
graphical tool that allows clinicians to inspect and analyze subject’s
movements. Conclusion. The described gait assessment system can be used for
detection and categorization of gait disturbances by applying rule-based
classification based on stride length, stride time, and frequency of the
shank segment movements. The method provides an valuable graphical interface
which is easy to interpret and provides clinicians and therapists with
valuable information regarding the temporal changes in gait. [Projekat
Ministarstva nauke Republike Srbije, br. 175016 i br. 175090] |
| format | Article |
| id | doaj-art-81006f4aac8945f3beda4bdfc0a3f6e2 |
| institution | OA Journals |
| issn | 0042-8450 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Ministry of Defence of the Republic of Serbia, University of Defence, Belgrade |
| record_format | Article |
| series | Vojnosanitetski Pregled |
| spelling | doaj-art-81006f4aac8945f3beda4bdfc0a3f6e22025-08-20T02:08:53ZengMinistry of Defence of the Republic of Serbia, University of Defence, BelgradeVojnosanitetski Pregled0042-84502014-01-0171980981610.2298/VSP130422012D0042-84501400012DQuantitative and qualitative gait assessments in Parkinson’s disease patientsĐurić-Jovičić Milica D.0Jovičić Nenad S.1Radovanović Saša M.2Kresojević Nikola D.3Kostić Vladimir S.4Popović Mirjana B.5Faculty of Electrical Engineering, Innovation Center, Belgrade + Faculty of Electrical Engineering, BelgradeFaculty of Electrical Engineering, BelgradeInstitute for Medical Research, BelgradeFaculty of Medicine, Clinic for Neurology, BelgradeFaculty of Medicine, Clinic for Neurology, BelgradeFaculty of Electrical Engineering, BelgradeBackground/Aim. Postural impairments and gait disorders in Parkinson's disease (PD) affect limits of stability, impaire postural adjustment, and evoke poor responses to perturbation. In the later stage of the disease, some patients can suffer from episodic features such as freezing of gait (FOG). Objective gait assessment and monitoring progress of the disease can give clinicians and therapist important information about changes in gait pattern and potential gait deviations, in order to prevent concomitant falls. The aim of this study was to propose a method for identification of freezing episodes and gait disturbances in patients with PD. A wireless inertial sensor system can be used to provide follow-up of the treatment effects or progress of the disease. Methods. The system is simple for mounting a subject, comfortable, simple for installing and recording, reliable and provides high-quality sensor data. A total of 12 patients were recorded and tested. Software calculates various gait parameters that could be estimated. User friendly visual tool provides information about changes in gait characteristics, either in a form of spectrogram or by observing spatiotemporal parameters. Based on these parameters, the algorithm performs classification of strides and identification of FOG types. Results. The described stride classification was merged with an algorithm for stride reconstruction resulting in a useful graphical tool that allows clinicians to inspect and analyze subject’s movements. Conclusion. The described gait assessment system can be used for detection and categorization of gait disturbances by applying rule-based classification based on stride length, stride time, and frequency of the shank segment movements. The method provides an valuable graphical interface which is easy to interpret and provides clinicians and therapists with valuable information regarding the temporal changes in gait. [Projekat Ministarstva nauke Republike Srbije, br. 175016 i br. 175090]http://www.doiserbia.nb.rs/img/doi/0042-8450/2014/0042-84501400012D.pdfParkinson diseasegait, disorders, neurologic disease progressionbiomedical engineering |
| spellingShingle | Đurić-Jovičić Milica D. Jovičić Nenad S. Radovanović Saša M. Kresojević Nikola D. Kostić Vladimir S. Popović Mirjana B. Quantitative and qualitative gait assessments in Parkinson’s disease patients Vojnosanitetski Pregled Parkinson disease gait, disorders, neurologic disease progression biomedical engineering |
| title | Quantitative and qualitative gait assessments in Parkinson’s disease patients |
| title_full | Quantitative and qualitative gait assessments in Parkinson’s disease patients |
| title_fullStr | Quantitative and qualitative gait assessments in Parkinson’s disease patients |
| title_full_unstemmed | Quantitative and qualitative gait assessments in Parkinson’s disease patients |
| title_short | Quantitative and qualitative gait assessments in Parkinson’s disease patients |
| title_sort | quantitative and qualitative gait assessments in parkinson s disease patients |
| topic | Parkinson disease gait, disorders, neurologic disease progression biomedical engineering |
| url | http://www.doiserbia.nb.rs/img/doi/0042-8450/2014/0042-84501400012D.pdf |
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