Low alcohol doses reduce common 10-15 hz input to bilateral leg muscles during quiet standing

T.W. Boonstra; M. Roerdink; A. Daffertshofer; B. Vugt; G. van Werven; P.J. Beek

doi:10.1152/jn.90474.2008

Low alcohol doses reduce common 10-15 hz input to bilateral leg muscles during quiet standing

T.W. Boonstra, M. Roerdink, A. Daffertshofer, B. Vugt, G. van Werven, P.J. Beek

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

The effects of low doses of alcohol on neural synchronization in muscular activity were investigated in ten participants during quiet standing with eyes open or closed. We focused on changes in common input to bilateral motor unit pools as evident in surface electromyographic (EMG) recordings of lower leg extensor and flexor muscles. The extensor muscles exhibited bilateral synchronization in two distinct frequency bands (i.e., 0-5 and 10-15 Hz), whereas synchronization between flexor muscles was minimal. As expected, alcohol ingestion affected postural sway, yielding increased sway at higher blood-alcohol levels. Whereas vision affected bilateral synchronization only at 0-5 Hz, alcohol ingestion resulted in a progressive decrease of synchronization at 10-15 Hz between the EMG activities of the extensor muscles. The decrease in common bilateral input is most likely related to reduced reticulospinal activity with alcohol ingestion. Copyright © 2008 The American Physiological Society.

Original language	English
Pages (from-to)	2158-2164
Journal	Journal of Neurophysiology
Volume	100
Issue number	4
DOIs	https://doi.org/10.1152/jn.90474.2008
Publication status	Published - 2008

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title = "Low alcohol doses reduce common 10-15 hz input to bilateral leg muscles during quiet standing",

abstract = "The effects of low doses of alcohol on neural synchronization in muscular activity were investigated in ten participants during quiet standing with eyes open or closed. We focused on changes in common input to bilateral motor unit pools as evident in surface electromyographic (EMG) recordings of lower leg extensor and flexor muscles. The extensor muscles exhibited bilateral synchronization in two distinct frequency bands (i.e., 0-5 and 10-15 Hz), whereas synchronization between flexor muscles was minimal. As expected, alcohol ingestion affected postural sway, yielding increased sway at higher blood-alcohol levels. Whereas vision affected bilateral synchronization only at 0-5 Hz, alcohol ingestion resulted in a progressive decrease of synchronization at 10-15 Hz between the EMG activities of the extensor muscles. The decrease in common bilateral input is most likely related to reduced reticulospinal activity with alcohol ingestion. Copyright {\textcopyright} 2008 The American Physiological Society.",

author = "T.W. Boonstra and M. Roerdink and A. Daffertshofer and B. Vugt and {van Werven}, G. and P.J. Beek",

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T1 - Low alcohol doses reduce common 10-15 hz input to bilateral leg muscles during quiet standing

AU - Boonstra, T.W.

AU - Roerdink, M.

AU - Daffertshofer, A.

AU - Vugt, B.

AU - van Werven, G.

AU - Beek, P.J.

PY - 2008

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N2 - The effects of low doses of alcohol on neural synchronization in muscular activity were investigated in ten participants during quiet standing with eyes open or closed. We focused on changes in common input to bilateral motor unit pools as evident in surface electromyographic (EMG) recordings of lower leg extensor and flexor muscles. The extensor muscles exhibited bilateral synchronization in two distinct frequency bands (i.e., 0-5 and 10-15 Hz), whereas synchronization between flexor muscles was minimal. As expected, alcohol ingestion affected postural sway, yielding increased sway at higher blood-alcohol levels. Whereas vision affected bilateral synchronization only at 0-5 Hz, alcohol ingestion resulted in a progressive decrease of synchronization at 10-15 Hz between the EMG activities of the extensor muscles. The decrease in common bilateral input is most likely related to reduced reticulospinal activity with alcohol ingestion. Copyright © 2008 The American Physiological Society.

AB - The effects of low doses of alcohol on neural synchronization in muscular activity were investigated in ten participants during quiet standing with eyes open or closed. We focused on changes in common input to bilateral motor unit pools as evident in surface electromyographic (EMG) recordings of lower leg extensor and flexor muscles. The extensor muscles exhibited bilateral synchronization in two distinct frequency bands (i.e., 0-5 and 10-15 Hz), whereas synchronization between flexor muscles was minimal. As expected, alcohol ingestion affected postural sway, yielding increased sway at higher blood-alcohol levels. Whereas vision affected bilateral synchronization only at 0-5 Hz, alcohol ingestion resulted in a progressive decrease of synchronization at 10-15 Hz between the EMG activities of the extensor muscles. The decrease in common bilateral input is most likely related to reduced reticulospinal activity with alcohol ingestion. Copyright © 2008 The American Physiological Society.

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DO - 10.1152/jn.90474.2008

M3 - Article

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JO - Journal of neurophysiology

JF - Journal of neurophysiology

IS - 4

ER -

Low alcohol doses reduce common 10-15 hz input to bilateral leg muscles during quiet standing

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