The purpose of this study was to investigate adaptive responses of proximal and distal regions along the longitudinal axis in the rat plantaris muscle. Cross-sectional areas (CSA) and succinate dehydrogenase (SDH) activities of each typed fiber in individual regions were determined after 8 weeks endurance training. CSA of each typed fiber in both regions were increased by endurance training. However the CSA of fibers in distal region were greater than in proximal region of trained muscle. SDH activities of each typed fiber were increased by the training, but that of type. I fiber was not increased in the distal region. These results indicate that recruitment of motor units is dependent on the compartment region and that the adaptive responses of different regions in the plantaris muscle are not uniform.
雑誌名
愛知教育大学研究報告. 芸術・保健体育・家政・技術科学・創作編
巻
56
ページ
31 - 34
発行年
2007-03-01
出版者
愛知教育大学
ISSN
1346-1818
書誌情報
愛知教育大学研究報告, 芸術・保健体育・家政・技術科学・創作編. 2007, 56, p. 31-34.
ラット足底筋における異なる部位での持久性トレーニングに対する適応変化
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