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The Dependence on the Distance of Shortening of the Energy Output from Frog Skeletal Muscle Shortening at Velocities of Vmax, 1/2Vmax and 1/4Vmax

  • Takenori Yamada
  • Earl Homsher
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 37)

Abstract

Shortening heat and work were measured, during and after the shortening, in contractions in which muscles shortened various distances (all ending at 2.05 micron of sarcomere length) at various velocities. Shortening heat and work were produced as a non-linear function of the distance shortened at velocities > 1/2Vmax, which was probably caused by a redistribution of the crossbridge population to different state(s) during the approach to the steady state.

Keywords

Work Production Sarcomere Length Solid Symbol Unit Distance Extra Energy 
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. Hill, A.V. (1938). The heat of shortening and the dynamic constants of muscle. Proc. Roy. Soc, B126: 136–195.CrossRefGoogle Scholar
  2. Hill, A.V. (1964). The effect of load on the heat of shortening muscle. Proc. Roy. Soc. B159: 297–318.CrossRefGoogle Scholar
  3. Irving, M. and Woledge, R.C. (1981). The dependence on extent of shortening of the extra energy liberated by rapidly shortening frog skeletal muscle. J. Physiol. 321: 411–422.PubMedGoogle Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • Takenori Yamada
    • 1
  • Earl Homsher
    • 1
  1. 1.Department of Physiology, School of MedicineUniversity of California at Los AngelesLos AngelesUSA

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