Abstract:
:The objective of this study was to apply a novel multidimensional motor unit number index (MD-MUNIX) technique to examine hand muscles in patients with incomplete cervical spinal cord injury (SCI). The MD-MUNIX was estimated from the compound muscle action potential (CMAP) and different levels of surface interference pattern electromyogram (EMG) at multiple directions of voluntary isometric muscle contraction. The MD-MUNIX was applied in the first dorsal interosseous (FDI), thenar and hypothenar muscles of SCI (n = 12) and healthy control (n = 12) subjects. The results showed that the SCI subjects had significantly smaller CMAP and MD-MUNIX in all the three examined muscles, compared to those derived from the healthy control subjects. The multidimensional motor unit size index (MD-MUSIX) demonstrated significantly larger values for the FDI and hypothenar muscles in SCI subjects than those from healthy control subjects, whereas the MD-MUSIX enlargement was marginally significant for the thenar muscles. The findings from the MD-MUNIX analyses provide an evidence of motor unit loss in hand muscles of cervical SCI patients, contributing to hand function deterioration.
journal_name
Front Hum Neuroscijournal_title
Frontiers in human neuroscienceauthors
Li L,Li X,Liu J,Zhou Pdoi
10.3389/fnhum.2015.00238subject
Has Abstractpub_date
2015-05-08 00:00:00pages
238issn
1662-5161journal_volume
9pub_type
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章,评审
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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journal_title:Frontiers in human neuroscience
pub_type: 已发布勘误
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pub_type: 杂志文章,评审
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章,评审
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2010.00169
更新日期:2010-10-14 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2017.00011
更新日期:2017-01-30 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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更新日期:2013-11-11 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2011.00126
更新日期:2011-11-24 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2016.00383
更新日期:2016-07-27 00:00:00
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pub_type: 杂志文章
doi:10.3389/fnhum.2017.00313
更新日期:2017-06-16 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2013.00908
更新日期:2013-12-25 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2012.00296
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2014.00279
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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