Analyses of joint variance related to voluntary whole-body movements performed in standing.

Journal of Neuroscience Methods
Sandra Maria Sbeghen Ferreira FreitasMark L Latash

Abstract

This article investigates two methodological issues resulting from a recent study of center of mass positional stability during performance of whole-body targeting tasks (Freitas et al., 2006): (1) Can identical results be obtained with uncontrolled manifold (UCM) variance analysis when it is based on estimating the Jacobian using multiple linear regression (MLR) analysis compared to that using typical analytic formal geometric model? (2) Are kinematic synergies more related to stabilization of the instantaneous anterior-posterior position of the center of mass (COM(AP)) or the center of pressure (COP(AP))? UCM analysis was used to partition the variance of the joint configuration into 'bad' variance, leading to COM(AP) or COP(AP) variability, and 'good' variance, reflecting the use of motor abundance. Findings indicated (1) nearly identical UCM results for both methods of Jacobian estimation; and (2) more 'good' and less 'bad' joint variance related to stability of COP(AP) than to COM(AP) position. The first result requires further investigation with more degrees of freedom, but suggests that when a formal geometric model is unavailable or overly complex, UCM analysis may be possible by estimating the Jacobian using MLR. Corre...Continue Reading

References

Jun 26, 1999·Experimental Brain Research·J P Scholz, G Schöner
Jan 22, 2002·Exercise and Sport Sciences Reviews·Mark L LatashGregor Schöner
Aug 9, 2003·Experimental Brain Research·Vijaya KrishnamoorthyVladimir M Zatsiorsky
Feb 11, 2004·Journal of Experimental Psychology. Human Perception and Performance·Hermann Müller, Dagmar Sternad
Feb 27, 2004·Experimental Brain Research·Vijaya KrishnamoorthyVladimir M Zatsiorsky
Jan 6, 2007·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Vijaya KrishnamoorthyMark L Latash

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Citations

May 24, 2012·Age·Wei-Li HsuMarjorie Woollacott
Jun 17, 2011·Journal of Neurophysiology·D J S MattosJ P Scholz
Nov 19, 2013·European Journal of Applied Physiology·Wei-Li HsuChih-Hsiu Cheng
Feb 22, 2012·Neuroscience Letters·Min Joo KimJae Kun Shim
Apr 26, 2011·Journal of Neuroscience Methods·Julius Verrel
Nov 20, 2009·Journal of Biomechanics·Sandra Maria Sbeghen Ferreira de Freitas, John Peter Scholz
Oct 4, 2011·Gait & Posture·Sandra Maria Sbeghen Ferreira Freitas, Marcos Duarte
Jul 28, 2016·Frontiers in Computational Neuroscience·Shunta TogoYoji Uno

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