Document Detail

A dynamic pattern analysis of coordination between breathing and rhythmic arm movements in humans.
MedLine Citation:
PMID:  12183039     Owner:  NLM     Status:  MEDLINE    
We investigated the behavioral dynamics of human breathing-wrist movement coordination in a 1:1 frequency locking task. A pronation-supination wrist movement and a short trial duration were chosen to limit both mechanical and metabolic constraints on the respiratory system. Subjects voluntarily controlled their breathing rhythm to follow the metronome. We found that pronation-expiration and pronation-inspiration patterns coexisted as the (sole) stable fixed-point attractors of the coordination system. The pronation-expiration pattern was more stable than the pronation-inspiration pattern. Depending on the oscillation frequency, this differential stability gave rise to both absolute and relative coordination. These results show that simple behavioral laws of coordination encapsulate neural coupling dynamics evidenced from experimental research in human beings and animals. They challenge the classical view that such a coupling is not present for all imposed movement frequencies. Rather, relative coordination emerges as a result of the modification of coupling strength with frequency. These results can be accommodated by the asymmetric version of the HKB model of coordination dynamics. Thus, our data suggest that the principles and models of coordination dynamics may be taken as a reference to study the coupling of the motor and physiological subsystems involved in breathing-movement coordination.
J J Temprado; L Milliex; L Grélot; T Coyle; S Calvin; M Laurent
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neuroscience letters     Volume:  329     ISSN:  0304-3940     ISO Abbreviation:  Neurosci. Lett.     Publication Date:  2002 Sep 
Date Detail:
Created Date:  2002-08-16     Completed Date:  2002-10-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  314-8     Citation Subset:  IM    
UMR Mouvement et Perception, CNRS et Université de la Méditerranée, Faculté des Sciences du Sport, Marseille, France.
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MeSH Terms
Arm / physiology*
Models, Neurological
Movement / physiology*
Nonlinear Dynamics
Respiratory Mechanics / physiology*

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