Quantitative measurement of quadriceps femoris with MRI - Morphological change of contraction phase and relaxation phase

Naoko Samejima*, Toru Fukubayashi, Yutaka Miyanaga, Shinya Kuno, Mamoru Niitsu, Kenichi Oomori, Yoshiyuki Daimon

*この研究の対応する著者

研究成果: Article査読

抄録

The purpose of this study was to investigate the mechanism of the dynamic morphological change of the femoral extensor evoked by contraction. In this study, the morphological changes during contraction and relaxation of the femoral extensor were analysed using MRI. and, the centers of gravity of the entire extensor group and of each extensor component were calculated using a pattern analyzer. The subjects were 10 female college basketball players, aged 18 to 22 years, with no history of knee injuries. The results were as follows : 1. The shift of the center of gravity of each component was very characteristic. 2. The greatest dynamic morphological change was observed in the middle of the femoral extensors when the most muscle volume was involved, and the muscles were at their maximal volume. 3. During muscle contraction, obvious anterior protrusion of the muscle belly of each component of the quadriceps femoris was observed. The muscular force may be transferred effectively into the patellar tendon insertion.

本文言語English
ページ(範囲)111-118
ページ数8
ジャーナルJapanese Journal of Physical Fitness and Sports Medicine
45
1
出版ステータスPublished - 1996 2月
外部発表はい

ASJC Scopus subject areas

  • 生理学
  • 整形外科およびスポーツ医学
  • 公衆衛生学、環境および労働衛生
  • 理学療法、スポーツ療法とリハビリテーション

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