Development of a kinematic coordination pattern in toddler locomotion: planar covariation.

Development of a kinematic coordination pattern in toddler locomotion: planar covariation. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Development of a kinematic coordination pattern in toddler locomotion: planar covariation. Abstract Text:

G Cheron,E Bouillot,B Dan,A Bengoetxea,J P Draye,F Lacquaniti,

The purpose of this study is to analyze the coordination patterns of the elevation angles of lower limb segments following the onset of unsupported walking in children and to look for the existence of a planar covariation rule as previously described in adult human locomotion. The kinematic patterns of locomotion were recorded in 21 children (11-144 months of age) and 19 adults. In 4 children we monitored the very first unsupported steps. The extent to which the covariation of thigh, shank, and foot angles was constrained on a plane in 3D space was assessed by means of orthogonal regression and statistically quantified by means of principal component analysis. The orientation of the covariation plane of the children was compared with the mean value of the adults' plane. Trunk stability with respect to the vertical was assessed in both the frontal (roll) and sagittal (pitch) planes. The evolution with walking experience of the plane orientation and trunk oscillations demonstrated biexponential profiles with a relatively fast time constant (< 6 months after the onset of unsupported locomotion) followed by a much slower progression toward adult values. The initial fast changes of these walking parameters did not parallel the slow, monotonic maturation of anthropometric parameters. The early emergence of the covariation plane orientation and its correlation with trunk vertical stability reflect the dynamic integration of postural equilibrium and forward propulsion in a gravity-centered frame. The results support the view that the planar covariation reflects a coordinated, centrally controlled behavior, in addition to biomechanical constraints. The refinement of the planar covariation while morphological variables drastically change as the child grows implies a continuous update of the neural command.

Development of a kinematic coordination pattern in toddler locomotion: planar covariation. Publishing Authors By Initials

G Cheron,E Bouillot,B Dan,A Bengoetxea,JP Draye,F Lacquaniti,

For similar body regions: thorax research abstracts see: body regions: thorax research

PUBMED ID PMID:

MEDLINE DATE:

Development of a kinematic coordination pattern in toddler locomotion: planar covariation. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Experimental brain research. Experimentelle Hirnfo

VOLUME: 137

Page Numbers: 455-66

Journal Abbreviation:

ISSN: 0014-4819

DAY: 15

MONTH: Apr

YEAR: 2001

Development of a kinematic coordination pattern in toddler locomotion: planar covariation. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 43312

Development of a kinematic coordination pattern in toddler locomotion: planar covariation. Keywords Mesh Terms:

KEYWORDS: Thorax

MESH TERMS: physiology

Chemical & Substance for Abstract: Development of a kinematic coordination pattern in toddler locomotion: planar covariation. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Development of a kinematic coordination pattern in toddler locomotion: planar covariation.

AFFILIATION: Laboratory of Movement Biomechanics, ISEPK, Université Libre de Bruxelles, Avenue P. Héger, CP168, Brussels 1050, Belgium. gcheron@ulb.ac.be

Country: Germany

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Exp Brain Res

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Development of a kinematic coordination pattern in toddler locomotion: planar covariation Related Publications

• An assessment of the existence of muscle synergies during load perturbations and intentional movements of the human arm.
• Basal ganglia and gait control: apomorphine administration and internal pallidum stimulation in Parkinson's disease.
• Cognitive allocentric representations of visual space shape pointing errors.
• Development of a kinematic coordination pattern in toddler locomotion: planar covariation.
• Internal models and prediction of visual gravitational motion.
• Modulation of phasic and tonic muscle synergies with reaching direction and speed.
• On the origin of planar covariation of elevation angles during human locomotion.
• Recovery of forward stepping in spinal cord injured patients does not transfer to untrained backward stepping.
• Spatiotemporal organization of alpha-motoneuron activity in the human spinal cord during different gaits and gait transitions.
• Vestibular nuclei and cerebellum put visual gravitational motion in context.
• Viewer-centered and body-centered frames of reference in direct visuomotor transformations.