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ID 26276
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Changes in myoproteins follwing long-term with high intensity endurance training in rats
creator
Katsuta, Shigeru
NDC
Sports and physical training
abstract
Effects of long-term with high intensity endurance training upon histochemically assessed myofibrillar actomyosin ATPase, myosin composition and creatine kinase content were analyzed in muscles from rats which were trained to run up to 240min/day at 40m/min. Following 16 weeks of the training, in M. soleus, proportions of slow-twitch oxidative (SO) fibers and slow type myosin light chains were increased ; no changes in myosin light chain were significantly observed. Furthermore, a decrease in creatine kinase was found in this muscle, indicating that SO fibers might have acquired slower properties. On the other hand, in M. extensor digitorum longus, there was only a transformation between fast-twitch fiber subgroups, with a decrease in LC3f by which fast myosin constructed was characterized by the highest myofibrillar ATPase activities. These data suggest that fiber type transformation may be brought about not only from fast-twitch glycolytic (FG) fibers to fast-twitch oxdative glycolytic (FOG) fibers but also from FOG fibers to SO fibers by long-term with high intensity endurance training.
description
Masanobu Wada and Shigeru Katsuta, "Changes in myoproteins following long-term with high intensity endurance training in rats", Jap. J. Phys. Educ., 32-4 : 221-29, March, 1988
journal title
体育學研究
volume
Volume 32
issue
Issue 4
start page
221
end page
229
date of issued
1988-03-01
publisher
日本体育学会
issn
0484-6710
ncid
language
jpn
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 1988 日本体育学会
この論文の著作権は(社)日本体育学会に帰属します
department
Graduate School of Integrated Arts and Sciences