Differentiating patients with radiculopathy from chronic low back pain patients by single surface EMG parameter

Autor: S. Ostojić, S. Peharec, V. Srhoj-Egekher, M. Cifrek
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Automatika, Vol 59, Iss 3-4, Pp 400-407 (2018)
Druh dokumentu: article
ISSN: 0005-1144
1848-3380
00051144
DOI: 10.1080/00051144.2018.1553669
Popis: The classification potential of surface electromyographic (EMG) parameters needs to be explored beyond classification of subjects onto low back pain subjects and control subjects. In this paper, a classification model based on surface EMG parameter is introduced to differentiate low back pain patients with radiculopathy from chronic low back pain (CLBP) patients and control subjects. A variant of the Roman chair was used to perform static contractions, where subject's own upper body weight was used to induce muscle fatigue in low back muscles. Surface EMG signals were recorded over the paraspinal muscles at L1–L2 and L4–L5 interspace level. As a descriptor of spectral changes, the median frequency of the power spectrum (MDF) was estimated by use of Hilbert–Huang transform. Student's t-test detected that regression line slope of the median frequency is significantly different (p
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