PMID: 9533394Apr 9, 1998Paper

Are human anticipatory postural adjustments affected by a modification of the initial position of the center of gravity?

Neuroscience Letters
M L Mille, L Mouchnino

Abstract

During a lateral leg raising task, the position of the center of gravity (CG) in the horizontal plane shifts towards the supporting leg prior to the movement onset. The aim of this study was to explore whether the anticipatory postural adjustments were calibrated as a function of the initial horizontal location of the CG. Experiments were performed on 8 healthy subjects, with three initial positions of the CG (close to the supporting leg, between the two legs, close to the moving leg). Simultaneous kinematic, kinetic and electromyographic (EMG) data were recorded with the ELITE. system. The results show that the duration of the kinetic variables and EMG pattern are scaled as a function of the distance covered by the CG and constitute the means of modulating the CG shift. They suggest that the evaluation of the support conditions is necessary to calibrate the CG shift, this is done during the early phase of the postural adjustments.

Citations

Jun 9, 2005·Experimental Brain Research·Lucinda K Hughey, Joyce Fung
Jun 4, 2013·Experimental Brain Research·Yun-Ju Lee, Alexander S Aruin
Jul 23, 2013·Archives of Physical Medicine and Rehabilitation·Katherine M MartinezMark W Rogers
May 20, 2000·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·A Le Pellec, B Maton
Jul 22, 2009·Journal of Strength and Conditioning Research·Gonzalo J MarquezMiguel Fernandez-del-Olmo
Jul 11, 2008·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Xiaoyan Li, Alexander S Aruin
Nov 14, 2015·Neurophysiologie clinique = Clinical neurophysiology·A H Saradjian
Jun 16, 2004·Neuroscience Letters·Shuman LiMark Bishop
Sep 19, 2014·Journal of Neurophysiology·Marie-Laure MilleMark W Rogers
Apr 12, 2017·Frontiers in Human Neuroscience·Teddy CaderbyGeorges Dalleau
Sep 13, 2017·Sports Biomechanics·Yann Le MansecMarc Jubeau

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