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APS » Journals » Phys. Rev. E » Volume 65 » Issue 5
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Phys. Rev. E 65, 051923 (2002) [9 pages]

Model for cardiorespiratory synchronization in humans

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Kiyoshi Kotani1, Kiyoshi Takamasu1, Yosef Ashkenazy2, H. Eugene Stanley2, and Yoshiharu Yamamoto3,*
1Department of Precision Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
2Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215
3Educational Physiology Laboratory, Graduate School of Education, University of Tokyo, Tokyo 113-0033, Japan

Received 20 November 2001; published 21 May 2002

Recent experimental studies suggest that there is evidence for a synchronization between human heartbeat and respiration. We develop a physiologically plausible model for this cardiorespiratory synchronization, and numerically show that the model can exhibit stable synchronization against given perturbations. In our model, in addition to the well-known influence of respiration on heartbeat, the influence of heartbeat (and hence blood pressure) on respiration is also important for cardiorespiratory synchronization.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.65.051923
DOI:
10.1103/PhysRevE.65.051923
PACS:
87.19.Hh, 87.80.Vt, 05.45.Xt

*Electronic address: yamamoto@p.u-tokyo.ac.jp

 
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