Postural Coordination Dynamics in Standing Humans

  • Benoît G. Bardy
Part of the Understanding Complex Systems book series (UCS)


Human stance requires the coordination of multiple joints. This article examines the dynamics of postural coordination modes involving the torso and legs in the control of stance and stance-related activities. Based on data obtained in various experiments using the same postural tracking task, we provide evidence that postural modes (i) emerge out of the coalescence of multiple constraints, (ii) exhibit persistence and changes that are characteristic of self-organized systems, (iii) are modulated by the actor’s intention, and (iv) can be learned by modifying the intrinsic dynamics of the postural system. Similarities between postural phase transitions in humans or non-biological phenomena suggest the existence of general and common principles governing pattern formation and flexibility in complex systems, and circumscribe the generality of neurophysiologically-based theories of postural behavior.


Postural Coordination Coordination Dynamics Interlimb Coordination Target Amplitude Critical Fluctuation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Benoît G. Bardy
    • 1
  1. 1.Research Center in Sport SciencesUniversity of Paris Sud XIOrsayFrance

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