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Development of the maximum isometric force at short sarcomere lengths in calcium-activated muscle myofibrils

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Summary

Studies on the sarcomere length-force relation in Ca++-activated vertebrate muscle myofibrils indicate that the maximum isometric force can be generated even at sarcomere lengths around 1 μm, indicating that the ascending limb of the sarcomere length-force relation is virtually absent.

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Authors and Affiliations

  1. Department of Physiology, School of Medicine, Teikyo University, Itabashi-ku, 173, Tokyo, Japan

    H. Sugi, T. Ohta & T. Tameyasu

Authors
  1. H. Sugi
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  2. T. Ohta
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  3. T. Tameyasu
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Additional information

We thank Miss S. Gomi for her technical assistance. This work was supported by the grant (No. 587028) form the Ministry of Education, Science and Culture of Japan.

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Sugi, H., Ohta, T. & Tameyasu, T. Development of the maximum isometric force at short sarcomere lengths in calcium-activated muscle myofibrils. Experientia 39, 147–148 (1983). https://doi.org/10.1007/BF01958866

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  • DOI: https://doi.org/10.1007/BF01958866

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