2005 Fiscal Year Final Research Report Summary
Dose the endurance run training performed at the young age influences the adaptive response to retraining?
| Project/Area Number |
14580025
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
体育学
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| Research Institution | Kurume University (2005)
Aichi University of Education (2002-2004) |
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Principal Investigator |
TSUJIMOTO Hisaya Kurume University, Institute of Health and Sports Science, AP, 健康・スポーツ科学センター, 助教授 (70299519)
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Hideki Aichi university of Education, AP, 教育学部, 助教授 (40235990)
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| Project Period (FY) |
2002 – 2005
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| Keywords | Endurance Training / Skeletal muscle / Metabolic properties / Detraining / Rat / Protein concentration |
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| Research Abstract |
The purpose of this study is to clarify whether the endurance run training performed at the young age influences the adaptive response to re-training. The endurance run training was examined using the laboratory animals (rats). The effects of the endurance run training were observed at the young age. The effects of the endurance run training were dependent on the compartment part of medial gastrocnemius (MG) muscle. The atrophy of the muscle fiber was not seen following short-term de-training. However, the decrease in the oxidative enzyme activity of the distal compartment in MG muscle was observed following short-term de-training. The hypertrophy and increase of oxidative enzyme activity in muscle fibers were observed by re-training. The amount of the glycogen in the MG muscle and the activities of lipolysis in adipose tissues reverted to the initial values without training following long-term (1 year) de-training. The protein concentration of lateral gastrocnemius (LG) was not affected by the training and the long-term de-training (one year). The increase of the protein content in LG muscle was observed by training. However, the protein content of LG muscle reverted to the initial values without training following long-term de-training.
These results indicate that the training performed at the young age did not influence adaptive response re-training in rat gastrocnemius muscle.
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