Locally and globally coupled oscillators in muscle

Katsuhiko Sato*, Yoshiki Kuramoto, Masako Ohtaki, Yuta Shimamoto, Shin'Ichi Ishiwata

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    26 Citations (Scopus)


    At an intermediate activation level, striated muscle exhibits autonomous oscillations called SPOC, in which the basic contractile units, sarcomeres, oscillate in length, and various oscillatory patterns such as traveling waves and their disrupted forms appear in a myofibril. Here we show that these patterns are reproduced by mechanically connecting in series the unit model that explains characteristics of SPOC at the single-sarcomere level. We further reduce the connected model to phase equations, revealing that the combination of local and global couplings is crucial to the emergence of these patterns.

    Original languageEnglish
    Article number108104
    JournalPhysical Review Letters
    Issue number10
    Publication statusPublished - 2013 Sept 5

    ASJC Scopus subject areas

    • General Physics and Astronomy


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