NDLI: Models of Postural Control: Shared Variance in Joint and COM Motions

Content Provider	PubMed Central
Author	Kilby, Melissa C. Molenaar, Peter C. M. Newell, Karl M.
Editor	Haddad, Jeffrey M.
Copyright Year	2015
Abstract	This paper investigated the organization of the postural control system in human upright stance. To this aim the shared variance between joint and 3D total body center of mass (COM) motions was analyzed using multivariate canonical correlation analysis (CCA). The CCA was performed as a function of established models of postural control that varied in their joint degrees of freedom (DOF), namely, an inverted pendulum ankle model (2DOF), ankle-hip model (4DOF), ankle-knee-hip model (5DOF), and ankle-knee-hip-neck model (7DOF). Healthy young adults performed various postural tasks (two-leg and one-leg quiet stances, voluntary AP and ML sway) on a foam and rigid surface of support. Based on CCA model selection procedures, the amount of shared variance between joint and 3D COM motions and the cross-loading patterns we provide direct evidence of the contribution of multi-DOF postural control mechanisms to human balance. The direct model fitting of CCA showed that incrementing the DOFs in the model through to 7DOF was associated with progressively enhanced shared variance with COM motion. In the 7DOF model, the first canonical function revealed more active involvement of all joints during more challenging one leg stances and dynamic posture tasks. Furthermore, the shared variance was enhanced during the dynamic posture conditions, consistent with a reduction of dimension. This set of outcomes shows directly the degeneracy of multivariate joint regulation in postural control that is influenced by stance and surface of support conditions.
Related Links	http://dx.doi.org/10.1371/journal.pone.0126379
Starting Page	126379
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	5
Volume Number	10
Language	English
Publisher	Public Library of Science
Publisher Date	2015-05-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effects of Four Days Hiking on Postural Control

Adaptive Visual Re-Weighting in Children’s Postural Control

Joint Bayesian Inference Reveals Model Properties Shared between Multiple Experimental Conditions

The Effect of Training on Postural Control in Dyslexic Children

Does Observation of Postural Imbalance Induce a Postural Reaction?

Aging Worsens the Effects of Sleep Deprivation on Postural Control

Saccades Improve Postural Control: A Developmental Study in Normal Children

Correction: Does Observation of Postural Imbalance Induce a Postural Reaction?

Vertical Heterophoria and Postural Control in Nonspecific Chronic Low Back Pain

Models of Postural Control: Shared Variance in Joint and COM Motions

Similar Documents

Effects of Four Days Hiking on Postural Control

Adaptive Visual Re-Weighting in Children’s Postural Control

Joint Bayesian Inference Reveals Model Properties Shared between Multiple Experimental Conditions

The Effect of Training on Postural Control in Dyslexic Children

Does Observation of Postural Imbalance Induce a Postural Reaction?

Aging Worsens the Effects of Sleep Deprivation on Postural Control

Saccades Improve Postural Control: A Developmental Study in Normal Children

Correction: Does Observation of Postural Imbalance Induce a Postural Reaction?

Vertical Heterophoria and Postural Control in Nonspecific Chronic Low Back Pain

Models of Postural Control: Shared Variance in Joint and COM Motions