Linked Life Data

10951435

Source:http://linkedlifedata.com/resource/pubmed/id/10951435

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2000-9-20
pubmed:abstractText
We tested whether a preceding muscle contraction changes reciprocal inhibition (RI) between forearm antagonists. RI was studied in 14 healthy subjects by assessing changes in the H reflex (evoked by median-nerve stimulation) in forearm flexor muscles after conditioning radial-nerve stimulation at 0- and 20-ms intervals. The maximum sizes of the M wave (M(max)) and H reflex (H(max)) were also measured. After a long-lasting maximum voluntary handgrip contraction (mean +/- SEM: 3.9 +/- 0.6 min) of ipsilateral forearm muscles, M(max) and H(max) were unchanged but RI was diminished. After contraction of the contralateral homologous muscles and after contraction elicited by ipsilateral muscle stimulation, RI remained unchanged. These results show that a preceding maximum voluntary contraction (lasting 30 s or more) reduces the activity of the spinal inhibitory interneurons mediating RI. This finding may imply the need to reinterpret results from RI studies in normal subjects and in patients with movement disorders.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0148-639X
pubmed:author
pubmed:copyrightInfo
Copyright 2000 John Wiley & Sons, Inc.
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1335-43
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Postcontraction depression of reciprocal inhibition in human forearm muscles.
pubmed:affiliation
Laboratorio di Neurofisiologia, Istituto di Clinica Neurologica, Università di Milano, Istituto di Ricovero e Cura a Carattere Scientifico Ospedale Maggiore di Milano, Italy. alberto.priori@unimi.it
pubmed:publicationType
Journal Article