Difference in fascicle behaviors between superficial and deep quadriceps muscles during isometric contractions

Ryosuke Ando*, Kazunori Nosaka, Takayuki Inami, Aya Tomita, Kohei Watanabe, Anthony J. Blazevich, Hiroshi Akima

*この研究の対応する著者

研究成果: Article査読

18 被引用数 (Scopus)

抄録

Introduction: In this study we examined changes in fascicle length and pennation of vastus intermedius (VI) and vastus lateralis (VL) from rest to isometric contraction. Methods: Fourteen healthy men performed submaximal (30% and 50% of maximal voluntary contraction; MVC) isometric knee extensions at 60° and 110° knee flexion (0°=full extension). Panoramic images of VL and VI were obtained at rest and during contractions to measure fascicle length and pennation using extended field-of-view ultrasonography, after confirmation that the technique could be used reliably during sustained submaximal isometric contractions. Results: The relative change in fascicle length from rest to 50% MVC was greater in VI than VL at 110° (P

本文言語English
ジャーナルMuscle and Nerve
DOI
出版ステータスAccepted/In press - 2016
外部発表はい

ASJC Scopus subject areas

  • 臨床神経学
  • 細胞および分子神経科学
  • 生理学(医学)
  • 生理学

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