Stabilization of Old and New Postural Patterns in Standing Humans

  • Benoît G. Bardy
  • Elise Faugloire
  • Paul Fourcade
  • Thomas A. Stoffregen


In human stance, rotations around the hips and ankles typically exhibit a relative phase close to 20°, or close to 180°. In this article, we propose a model of stance that captures these postural states and the changes between them. We also describe the results of a recent study in which participants learned a novel pattern of hip and ankle coordination (a relative phase of 135°). Participants learned this novel pattern rapidly. At the same time, learning led to a robust destabilization of pre-existing patterns of hip-ankle coordination. The rate and type of destabilization depended upon the initial stability of the pre-existing patterns. We discuss similarities and differences between the learning of postural and bimanual coordination modes.


Relative Phase Retention Test Tracking Task Coordination Pattern Bimanual Coordination 
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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Benoît G. Bardy
    • 1
    • 2
  • Elise Faugloire
    • 3
  • Paul Fourcade
    • 4
  • Thomas A. Stoffregen
    • 3
  1. 1.University of Montpellier-1France
  2. 2.Institut Universitaire de FranceFrance
  3. 3.School of KinesiologyUniversity of MinnesotaUSA
  4. 4.University of Paris 11OrsayFrance

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