Effects of detection system parameters on cross-correlations between MUAPs generated from parallel and inclined muscle fibres

• Autorzy: Messaoudi Noureddine , Bekka Raïs El’hadi , Belkacem Samia

Identyfikatory

DOI

10.2478/pjmpe-2021-0011

• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to investigate the effects of inter-electrode distance (IED), electrode radius (ER) and electrodes configurations on cross-correlation coefficient (CC) between motor unit action potentials (MUAPs) generated in a motor unit (MU) of parallel fibres and in a MU of inclined fibres with respect to the detection system. The fibres inclination angle (FIA) varied from 0° to 180° by a step of 5°. Six spatial filters (the longitudinal single differential (LSD), longitudinal double differential (LDD), bi-transversal double differential (BiTDD), normal double differential (NDD), an inverse binomial filter of order two (IB2) and maximum kurtosis filter (MKF)), three values of IED and three values of ER were considered. A cylindrical multilayer volume conductor constituted by bone, muscle, fat and skin layers was used to simulate the MUAPs. The cross-correlation coefficient analysis showed that with the increase of the FIA, the pairs of MUAPs detected by the IB2 system were more correlated than those detected by the five other systems. For each FIA, the findings also showed that the MUAPs pairs detected by BiTDD, NDD, IB2 and MKF systems were more correlated with smaller IEDs than with larger ones, while inverse results were found with the LSD and LDD systems. In addition, the pairs of MUAPs detected by the LDD, BiTDD, IB2 and MKF systems were more correlated with large ERs than with smaller ones. However, inverse results were found with the LSD and NDD systems.

Słowa kluczowe

EN

cross-correlation; electrodes; electromyography; fibres; inclination

• Wydawca: Polskie Towarzystwo Fizyki Medycznej ; De Gruyter
• Czasopismo: Polish Journal of Medical Physics and Engineering
• Rocznik: 2021
• Tom: Vol. 27, Iss. 1
• Strony: 87--97
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Messaoudi Noureddine

• Université de Boumerdes, Faculty of Technology, Department Engineering of Electrical Systems, 35000 Boumerdes, Algeria
• Université de Sétif 1, Faculty of Technology, Department of Electronics, LIS Laboratory,19000 Sétif, Algeria

autor

Bekka Raïs El’hadi

• Université de Sétif 1, Faculty of Technology, Department of Electronics, LIS Laboratory,19000 Sétif, Algeria

autor

Belkacem Samia

• Université de Boumerdes, Faculty of Technology, Department Engineering of Electrical Systems, 35000 Boumerdes, Algeria

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).