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Wyświetlanie 1-2 z 2
Tytuł:
The use of the Gait Variability Index for the evaluation of individuals after a stroke
Autorzy:
Guzik, A.
Drużbicki, M.
Przysada, G.
Szczepanik, M.
Bazarnik-Mucha, K.
Kwolek, A.
Powiązania:
https://bibliotekanauki.pl/articles/307461.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
udar
analiza chodu
indeks zmienności chodu
parametry czasoprzestrzenne
stroke
gait analysis
Gait Variability Index
spatiotemporal parameters
Opis:
The Gait Variability Index (GVI) summarizes overall gait quality, taking into account spatiotemporal parameters from a 3-dimensional gait analysis. However, there are no studies evaluating changes in gait patterns after stroke, based on the GVI. The study was designed to assess usefulness of the GVI for evaluation of gait pathology in subjects with stroke, compared to healthy individuals. Methods: Spatiotemporal gait parameters were examined in a group of 50 subjects at a chronic stage post-stroke and in 50 healthy controls. The GVI was calculated based on the 9 spatiotemporal data. Results: The findings show statistically significant differences between the values of the GVI for paretic and non-paretic limbs ( p < 0.001). Higher values of the index were identified in the case of non-paretic limb: 80.74 vs. 76.32. The GVI scores were decreased for both paretic and non-paretic limbs, compared to the controls – p < 0.001. Conclusions: The GDI score seems to be a viable tool for quantifying changes in gait pattern during evaluation of subjects with chronic post-stroke hemiparesis. Further studies should be conducted to validate the use of GVI in the post-stroke population.
Źródło:
Acta of Bioengineering and Biomechanics; 2018, 20, 2; 171-177
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurements of electrical impedance of biomedical objects
Autorzy:
Frączek, M.
Kręcicki, T.
Moroń, Z.
Krzywaźnia, A.
Ociepka, J.
Rucki, Z.
Szczepanik, Z.
Powiązania:
https://bibliotekanauki.pl/articles/307125.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
bioimpedancja
spektroskopia
charakterystyka częstotliwościowa
bioimpedance
bioimpedance spectroscopy
frequency characteristics
Opis:
Some basic problems related to measurements of electrical impedance of biological objects (bioimpedance) have been presented in this paper. Particularly problems arising from impedance occurring at the sensor–tissue interface (interfacial impedances) in contact measuring methods have been discussed. The influence of finite values of impedances of the current source and voltage measuring device has also been taken into consideration. A model of the impedance sensor for the four-electrode measurement method containing the interfacial, source and measuring device impedances has been given and its frequency characteristics obtained by the computer simulation have been presented. The influence of these impedances on the shape of frequency characteristic of the sensor model has been discussed. Measurements of bioimpedance of healthy and anomalous soft tissues have been described. Some experimental results, particularly the frequency characteristics of bioimpedance, have been shown. The presented results of measurement show that bioimpedance can be a valuable source of information about the tissues, so measurement of bioimpedance can be a useful supplement to other medical diagnostic methods.
Źródło:
Acta of Bioengineering and Biomechanics; 2016, 18, 1; 11-17
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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