Functional and Morphological Changes in the Deep Lumbar Multifidus Using Electromyography and Ultrasound

Abstract Surface electromyography (sEMG) studies have indicated that chronic low back pain (cLBP) involves altered electromyographic activity and morphological structure of the lumbar multifidus (LM) beyond pain perception; however, most studies have evaluated the superficial lumbar multifidus. It i...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Shanshan Zhang, Yi Xu, Xiulan Han, Wen Wu, Yan Tang, Chuhuai Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cd2339d0fe05481fbc972f2a43009f33
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:cd2339d0fe05481fbc972f2a43009f33
record_format	dspace
spelling	oai:doaj.org-article:cd2339d0fe05481fbc972f2a43009f332021-12-02T15:07:52ZFunctional and Morphological Changes in the Deep Lumbar Multifidus Using Electromyography and Ultrasound10.1038/s41598-018-24550-52045-2322https://doaj.org/article/cd2339d0fe05481fbc972f2a43009f332018-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-24550-5https://doaj.org/toc/2045-2322Abstract Surface electromyography (sEMG) studies have indicated that chronic low back pain (cLBP) involves altered electromyographic activity and morphological structure of the lumbar multifidus (LM) beyond pain perception; however, most studies have evaluated the superficial lumbar multifidus. It is difficult to record electromyography (EMG) signals from the deep multifidus (DM) to determine the neuromuscular activation patterns, making it difficult to determine the relationship between functional and structural changes in cLBP. We developed a novel method to record intramuscular EMG signals in the DM based on the sEMG system and fine-wire electrodes. We measured EMG signals of the DM in 24 cLBP patients and 26 pain-free healthy controls to identify changes in neuromuscular activation. We also used ultrasound to measure DM muscle thickness, cross-sectional area, and contraction activity to identify potential relationships between EMG activity and structural damage. cLBP patients had decreased average EMG and root mean square, but increased median frequency and mean power frequency. Average EMG was positively correlated with contractile activity, but not statistically correlated with noncontractile anatomical abnormalities. Our results suggest that cLBP alters the neuromuscular activation patterns and morphological structure of the contractile activity of the DM, providing insights into the mechanisms underlying pain perception.Shanshan ZhangYi XuXiulan HanWen WuYan TangChuhuai WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shanshan Zhang Yi Xu Xiulan Han Wen Wu Yan Tang Chuhuai Wang Functional and Morphological Changes in the Deep Lumbar Multifidus Using Electromyography and Ultrasound
description	Abstract Surface electromyography (sEMG) studies have indicated that chronic low back pain (cLBP) involves altered electromyographic activity and morphological structure of the lumbar multifidus (LM) beyond pain perception; however, most studies have evaluated the superficial lumbar multifidus. It is difficult to record electromyography (EMG) signals from the deep multifidus (DM) to determine the neuromuscular activation patterns, making it difficult to determine the relationship between functional and structural changes in cLBP. We developed a novel method to record intramuscular EMG signals in the DM based on the sEMG system and fine-wire electrodes. We measured EMG signals of the DM in 24 cLBP patients and 26 pain-free healthy controls to identify changes in neuromuscular activation. We also used ultrasound to measure DM muscle thickness, cross-sectional area, and contraction activity to identify potential relationships between EMG activity and structural damage. cLBP patients had decreased average EMG and root mean square, but increased median frequency and mean power frequency. Average EMG was positively correlated with contractile activity, but not statistically correlated with noncontractile anatomical abnormalities. Our results suggest that cLBP alters the neuromuscular activation patterns and morphological structure of the contractile activity of the DM, providing insights into the mechanisms underlying pain perception.
format	article
author	Shanshan Zhang Yi Xu Xiulan Han Wen Wu Yan Tang Chuhuai Wang
author_facet	Shanshan Zhang Yi Xu Xiulan Han Wen Wu Yan Tang Chuhuai Wang
author_sort	Shanshan Zhang
title	Functional and Morphological Changes in the Deep Lumbar Multifidus Using Electromyography and Ultrasound
title_short	Functional and Morphological Changes in the Deep Lumbar Multifidus Using Electromyography and Ultrasound
title_full	Functional and Morphological Changes in the Deep Lumbar Multifidus Using Electromyography and Ultrasound
title_fullStr	Functional and Morphological Changes in the Deep Lumbar Multifidus Using Electromyography and Ultrasound
title_full_unstemmed	Functional and Morphological Changes in the Deep Lumbar Multifidus Using Electromyography and Ultrasound
title_sort	functional and morphological changes in the deep lumbar multifidus using electromyography and ultrasound
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/cd2339d0fe05481fbc972f2a43009f33
work_keys_str_mv	AT shanshanzhang functionalandmorphologicalchangesinthedeeplumbarmultifidususingelectromyographyandultrasound AT yixu functionalandmorphologicalchangesinthedeeplumbarmultifidususingelectromyographyandultrasound AT xiulanhan functionalandmorphologicalchangesinthedeeplumbarmultifidususingelectromyographyandultrasound AT wenwu functionalandmorphologicalchangesinthedeeplumbarmultifidususingelectromyographyandultrasound AT yantang functionalandmorphologicalchangesinthedeeplumbarmultifidususingelectromyographyandultrasound AT chuhuaiwang functionalandmorphologicalchangesinthedeeplumbarmultifidususingelectromyographyandultrasound
_version_	1718388417397522432

Functional and Morphological Changes in the Deep Lumbar Multifidus Using Electromyography and Ultrasound

Ejemplares similares