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Aerobic interval exercise with an eccentric contraction induces muscular hypertrophy and augmentation of muscular strength in rats
[Purpose] The purpose of this study was to examine whether an aerobic interval exercise using an eccentric contraction would result in skeletal muscular hypertrophy and augmentation of muscular strength in rats. [Subjects and Methods] Twenty-one female Wistar rats were used in this study. The rats w...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Society of Physical Therapy Science
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4433983/ https://www.ncbi.nlm.nih.gov/pubmed/25995562 http://dx.doi.org/10.1589/jpts.27.1083 |
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author | Tsumiyama, Wakako Oki, Sadaaki Takamiya, Naomi Umei, Namiko Shimizu, Michele Eisemann Ono, Takeya Otsuka, Akira |
author_facet | Tsumiyama, Wakako Oki, Sadaaki Takamiya, Naomi Umei, Namiko Shimizu, Michele Eisemann Ono, Takeya Otsuka, Akira |
author_sort | Tsumiyama, Wakako |
collection | PubMed |
description | [Purpose] The purpose of this study was to examine whether an aerobic interval exercise using an eccentric contraction would result in skeletal muscular hypertrophy and augmentation of muscular strength in rats. [Subjects and Methods] Twenty-one female Wistar rats were used in this study. The rats were randomly divided into three groups. The control group performed no exercise. The aerobic endurance exercise group ran for 90 min. The aerobic interval exercise group ran for a total of 90 minutes in 5 minute bouts separated by 2 minute rest periods. The exercise groups ran on a downhill treadmill incline, once every three days, for a total of twenty sessions. [Results] The muscle wet weights, the muscle fiber cross-section minor axes, and the tetanus tension results of the aerobic endurance and aerobic interval exercise groups were significantly larger than those of the control group. [Conclusion] These results indicate that aerobic interval exercise may be an effective method of inducing hypertrophy and augmenting muscular strength in skeletal muscle. |
format | Online Article Text |
id | pubmed-4433983 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | The Society of Physical Therapy Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-44339832015-05-20 Aerobic interval exercise with an eccentric contraction induces muscular hypertrophy and augmentation of muscular strength in rats Tsumiyama, Wakako Oki, Sadaaki Takamiya, Naomi Umei, Namiko Shimizu, Michele Eisemann Ono, Takeya Otsuka, Akira J Phys Ther Sci Original Article [Purpose] The purpose of this study was to examine whether an aerobic interval exercise using an eccentric contraction would result in skeletal muscular hypertrophy and augmentation of muscular strength in rats. [Subjects and Methods] Twenty-one female Wistar rats were used in this study. The rats were randomly divided into three groups. The control group performed no exercise. The aerobic endurance exercise group ran for 90 min. The aerobic interval exercise group ran for a total of 90 minutes in 5 minute bouts separated by 2 minute rest periods. The exercise groups ran on a downhill treadmill incline, once every three days, for a total of twenty sessions. [Results] The muscle wet weights, the muscle fiber cross-section minor axes, and the tetanus tension results of the aerobic endurance and aerobic interval exercise groups were significantly larger than those of the control group. [Conclusion] These results indicate that aerobic interval exercise may be an effective method of inducing hypertrophy and augmenting muscular strength in skeletal muscle. The Society of Physical Therapy Science 2015-04-30 2015-04 /pmc/articles/PMC4433983/ /pubmed/25995562 http://dx.doi.org/10.1589/jpts.27.1083 Text en 2015©by the Society of Physical Therapy Science. Published by IPEC Inc. http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. |
spellingShingle | Original Article Tsumiyama, Wakako Oki, Sadaaki Takamiya, Naomi Umei, Namiko Shimizu, Michele Eisemann Ono, Takeya Otsuka, Akira Aerobic interval exercise with an eccentric contraction induces muscular hypertrophy and augmentation of muscular strength in rats |
title | Aerobic interval exercise with an eccentric contraction induces muscular
hypertrophy and augmentation of muscular strength in rats |
title_full | Aerobic interval exercise with an eccentric contraction induces muscular
hypertrophy and augmentation of muscular strength in rats |
title_fullStr | Aerobic interval exercise with an eccentric contraction induces muscular
hypertrophy and augmentation of muscular strength in rats |
title_full_unstemmed | Aerobic interval exercise with an eccentric contraction induces muscular
hypertrophy and augmentation of muscular strength in rats |
title_short | Aerobic interval exercise with an eccentric contraction induces muscular
hypertrophy and augmentation of muscular strength in rats |
title_sort | aerobic interval exercise with an eccentric contraction induces muscular
hypertrophy and augmentation of muscular strength in rats |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4433983/ https://www.ncbi.nlm.nih.gov/pubmed/25995562 http://dx.doi.org/10.1589/jpts.27.1083 |
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