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Nonuniformity of Contraction and Relaxation of Mammalian Cardiac Muscle

  • Philippe R. Housmans
  • Leonard H. S. Chuck
  • Victor A. Claes
  • Dirk L. Brutsaert
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 37)

Abstract

Nonuniformity of contraction and relaxation in cardiac muscle results from relaxation asynchronies between segments in the central region and their interaction with the prevailing loading conditions, and this may reflect regional differences in activation or force potential at a given time during a twitch.

Keywords

Segment Length Muscle Length Sarcomere Length Force Potential Force Generate Capacity 
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. Edman, K.A.P. (1982) Length-tension-velocity relationships studied in short consecutive segments of intact muscle fibres of the frog. (This volume).Google Scholar
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  3. Krueger, J.W. and Pollack, G.H. (1975). Myocardial sarcomere dynamics during isometric contractions. J. Physiol. 251: 627–643.PubMedGoogle Scholar
  4. Nassar, R., Manring, A. and Johnson, E.A. (1974). Light diffraction of cardiac muscle: sar-comere motion during contraction. In: The Physiological Basis of Starling’s Law of theHeart, edited by the Ciba Foundation, Elsevier, Excerpta Medica, Amsterdam, pp. 57–82.Google Scholar
  5. Stienen, G.J.M. and Blangé, T. (1981). Local movement in stimulated frog sartorius muscle. J. Gen. Physiol. 78: 151–170.PubMedCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • Philippe R. Housmans
    • 1
  • Leonard H. S. Chuck
    • 2
  • Victor A. Claes
    • 1
  • Dirk L. Brutsaert
    • 1
  1. 1.The Department of PharmacologyMayo FoundationRochesterUSA
  2. 2.Alberta Heritage FoundationUniversity of CalgaryCanada

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