Correlation between K complex, periodic leg movements (PLM), and myoclonus during sleep in paraplegic adults before and after an acute physical activity

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dc.contributor.author Mello, Marco Tulio de [UNIFESP]
dc.contributor.author Silva, Antônio Carlos [UNIFESP]
dc.contributor.author Rueda, A. D.
dc.contributor.author Poyares, Dalva [UNIFESP]
dc.contributor.author Tufik, Sergio [UNIFESP]
dc.date.accessioned 2016-01-24T12:30:19Z
dc.date.available 2016-01-24T12:30:19Z
dc.date.issued 1997-04-01
dc.identifier http://dx.doi.org/10.1038/sj.sc.3100408
dc.identifier.citation Spinal Cord. Basingstoke: Stockton Press, v. 35, n. 4, p. 248-252, 1997.
dc.identifier.issn 1362-4393
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/25707
dc.description.abstract K complex is the characteristic wave of stage II of sleep. the relationship between periodic limb movements (PLM) and the restless legs syndrome (RLS), and the incidence of K complexes and alpha activity has been previously described. the aim of the present study was to evaluate the effect of an acute physical activity upon K complex, PLM, and myoclonus during sleep in individuals who were paraplegic. We evaluated 84 polysomnograms from 28 volunteers with a spinal cord injury at the level of T7-T12, obtained during three consecutive nights. On day 3, the volunteers were submitted to a test of maximum effort (manual cycloergometer, with the equipment Cybex Met 300, with a progressive load increase of 12.5 w, every 2 min). the analysis of the polysomnographic recordings showed a positive correlation between the incidence of K complex and limb movements on nights 1, 2 and 3. Similarly, a correlation between the incidence of K complex and myoclonus was observed on nights 1, 2 and 3. An increased incidence of the total K complex was seen on night 3, 36 h after the test of maximum effort. Both total K complex and K complex/h were reduced on night 2, compared to basal recording (night 1). There was a reduction of sleep latency on night 2, whereas total sleeping time increased progressively on night 3, as well as REM phase on nights 2 and 3. These findings indicate that physical activity can affect or modulate the incidence of K complex and suggest that a positive correlation between PLM and K complex may occur in those who are paraplegic from a spinal cord injury. in conclusion, sleep can be consolidated after physical activity. en
dc.format.extent 248-252
dc.language.iso eng
dc.publisher Stockton Press
dc.relation.ispartof Spinal Cord
dc.rights Acesso aberto
dc.subject sleep en
dc.subject K complex en
dc.subject periodic leg movements en
dc.subject myoclonus paraplegic en
dc.subject physical activity en
dc.title Correlation between K complex, periodic leg movements (PLM), and myoclonus during sleep in paraplegic adults before and after an acute physical activity en
dc.type Artigo
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.description.affiliation Universidade Federal de São Paulo,DEPT PSYCHOBIOL,São Paulo,BRAZIL
dc.description.affiliation Universidade Federal de São Paulo,DEPT PHYSIOL,São Paulo,BRAZIL
dc.description.affiliationUnifesp Universidade Federal de São Paulo,DEPT PSYCHOBIOL,São Paulo,BRAZIL
dc.description.affiliationUnifesp Universidade Federal de São Paulo,DEPT PHYSIOL,São Paulo,BRAZIL
dc.identifier.doi 10.1038/sj.sc.3100408
dc.description.source Web of Science
dc.identifier.wos WOS:A1997WR95300011



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