Origins of Common Neural Inputs to Different Compartments of the Extensor Digitorum Communis Muscle

Abstract The extensor digitorum communis (EDC) is a multi-compartment muscle that allows dexterous extension of the four digits. However, the level of common input shared across different compartments of this muscle is not well understood. We seek to systematically characterize the common and indepe...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Chenyun Dai, Henry Shin, Bradley Davis, Xiaogang Hu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d5959712e1034d34883b63b13257beb4
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d5959712e1034d34883b63b13257beb4
record_format	dspace
spelling	oai:doaj.org-article:d5959712e1034d34883b63b13257beb42021-12-02T11:53:03ZOrigins of Common Neural Inputs to Different Compartments of the Extensor Digitorum Communis Muscle10.1038/s41598-017-14555-x2045-2322https://doaj.org/article/d5959712e1034d34883b63b13257beb42017-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-14555-xhttps://doaj.org/toc/2045-2322Abstract The extensor digitorum communis (EDC) is a multi-compartment muscle that allows dexterous extension of the four digits. However, the level of common input shared across different compartments of this muscle is not well understood. We seek to systematically characterize the common and independent neural input, originated from different levels of the central nervous system, to the different compartments. A motor unit (MU) coherence analysis was used to capture the different sources of common and independent input, by quantifying the coherence of MU discharge between different compartments. The MU activities were obtained from decomposition of surface electromyogram recordings. Our results showed that the MU coherence across different muscle compartments accounted for only a small proportion (<20%) of the total input in the alpha (5–12 Hz) and beta (15–30 Hz) bands, but was a major driver (>60%) in the delta (1–4 Hz) band. Additionally, cross-compartment coherence between the middle and ring-little fingers tended to be higher as compared with other finger combinations. Overall, the common input shared across different fingers are found to be at low to moderate levels, in comparison with the total input, which allows dexterous control of individual digits with some degree of coordinated control of multiple digits.Chenyun DaiHenry ShinBradley DavisXiaogang HuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chenyun Dai Henry Shin Bradley Davis Xiaogang Hu Origins of Common Neural Inputs to Different Compartments of the Extensor Digitorum Communis Muscle
description	Abstract The extensor digitorum communis (EDC) is a multi-compartment muscle that allows dexterous extension of the four digits. However, the level of common input shared across different compartments of this muscle is not well understood. We seek to systematically characterize the common and independent neural input, originated from different levels of the central nervous system, to the different compartments. A motor unit (MU) coherence analysis was used to capture the different sources of common and independent input, by quantifying the coherence of MU discharge between different compartments. The MU activities were obtained from decomposition of surface electromyogram recordings. Our results showed that the MU coherence across different muscle compartments accounted for only a small proportion (<20%) of the total input in the alpha (5–12 Hz) and beta (15–30 Hz) bands, but was a major driver (>60%) in the delta (1–4 Hz) band. Additionally, cross-compartment coherence between the middle and ring-little fingers tended to be higher as compared with other finger combinations. Overall, the common input shared across different fingers are found to be at low to moderate levels, in comparison with the total input, which allows dexterous control of individual digits with some degree of coordinated control of multiple digits.
format	article
author	Chenyun Dai Henry Shin Bradley Davis Xiaogang Hu
author_facet	Chenyun Dai Henry Shin Bradley Davis Xiaogang Hu
author_sort	Chenyun Dai
title	Origins of Common Neural Inputs to Different Compartments of the Extensor Digitorum Communis Muscle
title_short	Origins of Common Neural Inputs to Different Compartments of the Extensor Digitorum Communis Muscle
title_full	Origins of Common Neural Inputs to Different Compartments of the Extensor Digitorum Communis Muscle
title_fullStr	Origins of Common Neural Inputs to Different Compartments of the Extensor Digitorum Communis Muscle
title_full_unstemmed	Origins of Common Neural Inputs to Different Compartments of the Extensor Digitorum Communis Muscle
title_sort	origins of common neural inputs to different compartments of the extensor digitorum communis muscle
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d5959712e1034d34883b63b13257beb4
work_keys_str_mv	AT chenyundai originsofcommonneuralinputstodifferentcompartmentsoftheextensordigitorumcommunismuscle AT henryshin originsofcommonneuralinputstodifferentcompartmentsoftheextensordigitorumcommunismuscle AT bradleydavis originsofcommonneuralinputstodifferentcompartmentsoftheextensordigitorumcommunismuscle AT xiaoganghu originsofcommonneuralinputstodifferentcompartmentsoftheextensordigitorumcommunismuscle
_version_	1718394896834887680

Origins of Common Neural Inputs to Different Compartments of the Extensor Digitorum Communis Muscle

Ejemplares similares