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Hydrodynamic Properties of Water in Contractile System

  • Michihiko Ogata
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 453)

Abstract

When muscle fragments are compressed, intracellular water leaks out. Unexpectedly, y-intercepts of regression lines in resting and active states become negative, implying “negative compression”. It seems that in resting state there is a kind of mechanical equilibrium between proteins and water. This protein-water complex in muscle behaves like a synthesized elastomer under moderate extension, (less than 10%). Employing the data presented by Richie & Wilkie (1958), validity of elastomer model is examined.

Compression study also shows that in active state a frictional drag of intracellular water decreases markedly. It leads to the assumption that the negative mechanical resistance may play a role in regenerative activation.

Keywords

Moderate Extension Relaxation Oscillation Mechanical Equilibrium Intracellular Water Frictional Drag 
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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References

  1. Hatta, I., Sugi, H. & Tamura, Y. J. Physiol. Lond. 403, 193–209 (1988).PubMedGoogle Scholar
  2. Ogata, M. Proc. Japan Acad. B72, 137–141 (1996).CrossRefGoogle Scholar
  3. Richie, J.M., & Wilkie, D.R. J. Physiol. Lond. 143, 104–113 (1958).Google Scholar

Copyright information

© Plenum Press, New York 1998

Authors and Affiliations

  • Michihiko Ogata
    • 1
  1. 1.Institute of Health ScienceKyushu UniversityFukuoka 816Japan

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