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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1998-10-27
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pubmed:abstractText |
Central motor conduction time, a useful measure for studying central motor pathways, is calculated by determining the difference between the latency of motor-evoked potentials and peripheral conduction time. The intraindividual trial-to-trial variability of central motor conduction time and the discomfort associated with three methods of measuring peripheral motor conduction time (F-wave latency, cervical magnetic stimulation, and cervical needle stimulation) were studied in 5 healthy subjects with the use of transcranial magnetic stimulation to elicit motor-evoked potentials. Central motor conduction time was calculated by using measurements, made on 3 separate days, from the same three muscles on each hand. A visual analog pain scale was used to determine the level of discomfort for each method. Intraindividual trial-to-trial variability of central motor conduction time was similar for all methods, with coefficients of variation of 13% for the F-wave latency, 15% for cervical magnetic stimulation, and 11% for cervical needle stimulation. The last method was significantly more painful than the other two methods; there was no significant difference in discomfort between the F-wave method and cervical magnetic stimulation. To assess peripheral motor conduction time, when determining central motor conduction time, either the F-wave method or cervical magnetic stimulation is preferable to cervical needle stimulation.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0148-639X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
21
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1445-50
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:9771668-Adult,
pubmed-meshheading:9771668-Electric Stimulation,
pubmed-meshheading:9771668-Electrophysiology,
pubmed-meshheading:9771668-Evoked Potentials, Motor,
pubmed-meshheading:9771668-Female,
pubmed-meshheading:9771668-Humans,
pubmed-meshheading:9771668-Magnetics,
pubmed-meshheading:9771668-Male,
pubmed-meshheading:9771668-Middle Aged,
pubmed-meshheading:9771668-Motor Neurons,
pubmed-meshheading:9771668-Needles,
pubmed-meshheading:9771668-Neural Conduction,
pubmed-meshheading:9771668-Neurophysiology,
pubmed-meshheading:9771668-Pain,
pubmed-meshheading:9771668-Pain Measurement,
pubmed-meshheading:9771668-Patient Satisfaction,
pubmed-meshheading:9771668-Reproducibility of Results
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pubmed:year |
1998
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pubmed:articleTitle |
Central motor conduction time: reproducibility and discomfort of different methods.
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pubmed:affiliation |
Human Motor Control Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892-1428, USA.
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pubmed:publicationType |
Journal Article
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