Speeding up gait initiation and gait-pattern with a startling stimulus

Gait & Posture
Ana QueraltJuan M Castellote

Abstract

Human gait involves a repetitive leg motor pattern that emerges after gait initiation. While the automatic maintenance of the gait-pattern may be under the control of subcortical motor centres, gait initiation requires the voluntary launching of a different motor program. In this study, we sought to examine how the two motor programmes respond to an experimental manipulation of the timing of gait initiation. Subjects were instructed to start walking as soon as possible at the perception of an imperative signal (IS) that, in some interspersed trials was accompanied by a startling auditory stimulus (SAS). This method is known to shorten the latency for execution of the motor task under preparation. We reasoned that, if the two motor programmes were launched together, the gait-pattern sequence would respond to SAS in the same way as gait initiation. We recorded the gait phases and the electromyographic (EMG) activity of four muscles from the leg that initiates gait. In trials with SAS, latency of all gait initiation-related events showed a significant shortening and the bursts of EMG activity had higher amplitude and shorter duration than in trials without SAS. The events related to gait-pattern were also advanced but otherwise un...Continue Reading

References

Jun 1, 1991·The Journal of Physiology·P Crenna, C Frigo
Jan 1, 1966·Acta Anatomica·S Carlsöö
Aug 4, 1995·Neuroscience Letters·J Valls-SoléE S Tolosa
Dec 1, 1995·Electroencephalography and Clinical Neurophysiology·B Schepens, P J Delwaide
Feb 3, 1999·Annals of the New York Academy of Sciences·H BarbeauM Ladouceur
Apr 14, 1999·Gait & Posture·J Duysens, Van de Crommert HW
Apr 14, 1999·The Journal of Physiology·J Valls-SoléE Muñoz
May 10, 2000·Gait & Posture·F Malouin, C L Richards
Jul 19, 2000·Journal of Neurophysiology·P H NieuwenhuijzenJ Duysens
Jan 11, 2002·Physical Therapy·Marilyn MacKay-Lyons
Jul 21, 2004·Journal of Motor Behavior·Anthony N CarlsenIan M Franks
Oct 14, 2004·Experimental Brain Research·Anthony N CarlsenIan M Franks
Mar 15, 2006·Neurophysiologie clinique = Clinical neurophysiology·A DelvalL Defebvre
Aug 15, 2006·Neuroscience·J R Tresilian, A M Plooy
Apr 27, 2007·Journal of Neurophysiology·Colum D MacKinnonMark W Rogers
Jul 28, 2007·The Journal of Physiology·Raymond F Reynolds, Brian L Day
Oct 9, 2007·Brain Research Reviews·François Clarac
Nov 9, 2007·Experimental Brain Research·Ana QueraltJuan M Castellote
Jul 22, 2008·Nature Reviews. Neuroscience·Trinity B Crapse, Marc A Sommer
Jul 26, 2008·The Journal of Physiology·Ana QueraltJacques Duysens

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Citations

Mar 11, 2015·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·J M Castellote, J Valls-Solé
Oct 10, 2013·BioMed Research International·J M CastelloteJ Valls-Solé
Aug 25, 2012·Gait & Posture·E C WentinkP H Veltink
Sep 20, 2016·Frontiers in Human Neuroscience·Jean-Louis HoneineManh-Cuong Do
May 27, 2011·Journal of Neurophysiology·Dana MaslovatIan M Franks
Feb 14, 2020·Brain Sciences·Arnaud DelvalKathy Dujardin
May 1, 2015·Journal of Neurophysiology·Tatsunori WatanabeIppei Nojima
Mar 17, 2017·BioMed Research International·Juan M CastelloteLeopold Saltuari
Aug 17, 2012·Journal of Neurophysiology·Juan M CastelloteJosep Valls-Solé
Jul 26, 2019·JMIR Rehabilitation and Assistive Technologies·Chad SwankSattam Almutairi
Dec 22, 2020·Psychophysiology·Josep Valls-SoléMichela Campolo

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