In vivo behavior of muscle fascicles and tendinous tissues of human gastrocnemius and soleus muscles during twitch contraction

Toshiaki Oda, Hiroaki Kanehisa, Kentaro Chino, Toshiyuki Kurihara, Toshihiko Nagayoshi, Tetsuo Fukunaga, Yasuo Kawakami

研究成果: Article

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The present study investigated the differences between the human medial gastrocnemius (MG) and soleus (SOL) muscles in length changes of muscle fascicles and tendinous tissues during twitch contraction induced by an electrical nerve stimulus. Also, the time-course characteristics of twitch torque were related with changes in the length of muscle fascicles and tendinous tissues. No significant difference was observed between MG and SOL in contraction and half relaxation times of the changes in lengths and velocities of both muscle fascicles and tendinous tissues. The time-course of changes in twitch torque was nearly identical to that of the length of muscle fascicles and tendinous tissues. It was suggested that the behavior of MG and SOL during twitch contraction is practically similar in spite of their known physiological and architectural differences, and that the time-course of twitch torque is greatly influenced by the changes in the length of muscle fascicles and tendinous tissues.

元の言語English
ページ(範囲)587-595
ページ数9
ジャーナルJournal of Electromyography and Kinesiology
17
発行部数5
DOI
出版物ステータスPublished - 2007 10 1

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ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Biophysics
  • Clinical Neurology

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