Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
15
pubmed:dateCreated
1996-3-19
pubmed:abstractText
Corticospinal motor output was studied during a 1.5 min maximum isometric voluntary contraction of the first dorsal interosseous muscle in five healthy subjects. Compound muscle action potentials (CMAPs) evoked by suprathreshold magnetic cortical stimuli and by supramaximal ulnar nerve stimuli were compared. On average, force fell to 25% of its initial value, CMAPs from nerve stimuli declined to 58% of initial, but CMAPs from cortical stimuli showed no significant change in amplitude after the first 5 s. It is concluded that there is no marked net change in corticospinal output during fatigue. It is postulated that cortical stimuli engage a subgroup of low threshold, fatigue-resistant motor units which remain active throughout the contraction.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0959-4965
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1966-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Human muscle fatigue investigated by transcranial magnetic stimulation.
pubmed:affiliation
University Department of Clinical Neurology, Radcliffe Infirmary, Oxford, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't