Age-related differences in pre-movement antagonist muscle co-activation and reaction-time performance.

Ivan Bautmans; Stijn Vantieghem; Ellen Gorus; Yuri-Reva Grazzini; Yves Fierens; Annelies Pool-Goudzwaard; Tony Mets

Age-related differences in pre-movement antagonist muscle co-activation and reaction-time performance.

Ivan Bautmans, Stijn Vantieghem, Ellen Gorus, Yuri-Reva Grazzini, Yves Fierens, Annelies Pool-Goudzwaard, Tony Mets

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

Multiple causes contribute to the prolonged reaction-times (RT) observed in elderly persons. The involvement of antagonist muscle co-activation remains unclear. Here the Mm. Biceps and Triceps Brachii activation in 64 apparently healthy elderly (80±6 years) and 60 young (26±3 years) subjects were studied during a simple RT-test (moving a finger using standardized elbow-extension from one pushbutton to another following a visual stimulus). RT was divided in pre-movement-time (PMT, time for stimulus processing) and movement-time (MT, time for motor response completion). RT-performance was significantly worse in elderly compared to young; the slowing was more pronounced for MT than PMT (respectively 101±10ms and 41±6ms slower, p

Original language	English
Pages (from-to)	637-642
Number of pages	6
Journal	Experimental Gerontology
Volume	46
Issue number	8
Publication status	Published - 16 Mar 2011

Keywords

Antagonist Co-contraction
Electromyography
Ageing
Reaction Time
Skeletal Muscle

Cite this

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title = "Age-related differences in pre-movement antagonist muscle co-activation and reaction-time performance.",

abstract = "Multiple causes contribute to the prolonged reaction-times (RT) observed in elderly persons. The involvement of antagonist muscle co-activation remains unclear. Here the Mm. Biceps and Triceps Brachii activation in 64 apparently healthy elderly (80±6 years) and 60 young (26±3 years) subjects were studied during a simple RT-test (moving a finger using standardized elbow-extension from one pushbutton to another following a visual stimulus). RT was divided in pre-movement-time (PMT, time for stimulus processing) and movement-time (MT, time for motor response completion). RT-performance was significantly worse in elderly compared to young; the slowing was more pronounced for MT than PMT (respectively 101±10ms and 41±6ms slower, p",

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AU - Bautmans, Ivan

AU - Vantieghem, Stijn

AU - Gorus, Ellen

AU - Grazzini, Yuri-Reva

AU - Fierens, Yves

AU - Pool-Goudzwaard, Annelies

AU - Mets, Tony

PY - 2011/3/16

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N2 - Multiple causes contribute to the prolonged reaction-times (RT) observed in elderly persons. The involvement of antagonist muscle co-activation remains unclear. Here the Mm. Biceps and Triceps Brachii activation in 64 apparently healthy elderly (80±6 years) and 60 young (26±3 years) subjects were studied during a simple RT-test (moving a finger using standardized elbow-extension from one pushbutton to another following a visual stimulus). RT was divided in pre-movement-time (PMT, time for stimulus processing) and movement-time (MT, time for motor response completion). RT-performance was significantly worse in elderly compared to young; the slowing was more pronounced for MT than PMT (respectively 101±10ms and 41±6ms slower, p

AB - Multiple causes contribute to the prolonged reaction-times (RT) observed in elderly persons. The involvement of antagonist muscle co-activation remains unclear. Here the Mm. Biceps and Triceps Brachii activation in 64 apparently healthy elderly (80±6 years) and 60 young (26±3 years) subjects were studied during a simple RT-test (moving a finger using standardized elbow-extension from one pushbutton to another following a visual stimulus). RT was divided in pre-movement-time (PMT, time for stimulus processing) and movement-time (MT, time for motor response completion). RT-performance was significantly worse in elderly compared to young; the slowing was more pronounced for MT than PMT (respectively 101±10ms and 41±6ms slower, p

KW - Antagonist Co-contraction

KW - Electromyography

KW - Ageing

KW - Reaction Time

KW - Skeletal Muscle

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EP - 642

JO - Experimental Gerontology

JF - Experimental Gerontology

SN - 0531-5565

IS - 8

ER -

Age-related differences in pre-movement antagonist muscle co-activation and reaction-time performance.

Abstract

Keywords

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