Comparison of the relative muscle volume of triceps surae among sprinters, runners, and untrained participants
Abstract Muscle hypertrophy is considered more prominent in fast‐twitch than in slow‐twitch muscles. This leads to the hypothesis that the relative muscle volume of the medial gastrocnemius (MG) and lateral gastrocnemius (LG) becomes larger than that of the soleus (SOL) in highly trained participant...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-10-01
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| Series: | Physiological Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.14814/phy2.14588 |
| _version_ | 1819204327900708864 |
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| author | Atsuki Fukutani Yume Tsuruhara Yuto Miyake Kenji Takao Hiromasa Ueno Mitsuo Otsuka Tadashi Suga Masafumi Terada Akinori Nagano Tadao Isaka |
| author_facet | Atsuki Fukutani Yume Tsuruhara Yuto Miyake Kenji Takao Hiromasa Ueno Mitsuo Otsuka Tadashi Suga Masafumi Terada Akinori Nagano Tadao Isaka |
| author_sort | Atsuki Fukutani |
| collection | DOAJ |
| description | Abstract Muscle hypertrophy is considered more prominent in fast‐twitch than in slow‐twitch muscles. This leads to the hypothesis that the relative muscle volume of the medial gastrocnemius (MG) and lateral gastrocnemius (LG) becomes larger than that of the soleus (SOL) in highly trained participants because MG and LG include more fast‐twitch muscles than SOL. Thus, we compared relative muscle volume among highly trained sprinters, long‐distance runners, and untrained participants to examine whether the above hypothesis is correct. Magnetic resonance imaging was used to calculate the muscle volume of MG, LG, and SOL from 126 participants. The total muscle volume of the three muscles and the relative muscle volume of each muscle with respect to the total muscle volume were calculated. The total muscle volume was significantly larger in the sprinters than in the long‐distance runners and untrained participants. The relative muscle volume of MG was significantly larger in the sprinters than in the long‐distance runners and untrained participants and that of SOL was significantly smaller in the sprinters than in the long‐distance runners and untrained participants. These results indicate that the relative muscle volume can vary among participants, possibly due to fiber type‐dependent muscle hypertrophy. |
| first_indexed | 2024-12-23T04:34:03Z |
| format | Article |
| id | doaj.art-d5b40e6980d249f5bc5c8623ca11c9e3 |
| institution | Directory Open Access Journal |
| issn | 2051-817X |
| language | English |
| last_indexed | 2024-12-23T04:34:03Z |
| publishDate | 2020-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Physiological Reports |
| spelling | doaj.art-d5b40e6980d249f5bc5c8623ca11c9e32022-12-21T17:59:56ZengWileyPhysiological Reports2051-817X2020-10-01819n/an/a10.14814/phy2.14588Comparison of the relative muscle volume of triceps surae among sprinters, runners, and untrained participantsAtsuki Fukutani0Yume Tsuruhara1Yuto Miyake2Kenji Takao3Hiromasa Ueno4Mitsuo Otsuka5Tadashi Suga6Masafumi Terada7Akinori Nagano8Tadao Isaka9Faculty of Sport and Health Science Ritsumeikan University Kusatsu Shiga JapanCollege of Sport and Health Science Ritsumeikan University Kusatsu Shiga JapanGraduate School of Sport and Health Science Ritsumeikan University Kusatsu Shiga JapanGraduate School of Sport and Health Science Ritsumeikan University Kusatsu Shiga JapanGraduate School of Health and Sport Science Nippon Sport Science University Setagaya Tokyo JapanFaculty of Sport and Health Science Ritsumeikan University Kusatsu Shiga JapanFaculty of Sport and Health Science Ritsumeikan University Kusatsu Shiga JapanFaculty of Sport and Health Science Ritsumeikan University Kusatsu Shiga JapanFaculty of Sport and Health Science Ritsumeikan University Kusatsu Shiga JapanFaculty of Sport and Health Science Ritsumeikan University Kusatsu Shiga JapanAbstract Muscle hypertrophy is considered more prominent in fast‐twitch than in slow‐twitch muscles. This leads to the hypothesis that the relative muscle volume of the medial gastrocnemius (MG) and lateral gastrocnemius (LG) becomes larger than that of the soleus (SOL) in highly trained participants because MG and LG include more fast‐twitch muscles than SOL. Thus, we compared relative muscle volume among highly trained sprinters, long‐distance runners, and untrained participants to examine whether the above hypothesis is correct. Magnetic resonance imaging was used to calculate the muscle volume of MG, LG, and SOL from 126 participants. The total muscle volume of the three muscles and the relative muscle volume of each muscle with respect to the total muscle volume were calculated. The total muscle volume was significantly larger in the sprinters than in the long‐distance runners and untrained participants. The relative muscle volume of MG was significantly larger in the sprinters than in the long‐distance runners and untrained participants and that of SOL was significantly smaller in the sprinters than in the long‐distance runners and untrained participants. These results indicate that the relative muscle volume can vary among participants, possibly due to fiber type‐dependent muscle hypertrophy.https://doi.org/10.14814/phy2.14588lateral gastrocnemiusmagnetic resonance imagingmedial gastrocnemiusplantar flexorssoleus |
| spellingShingle | Atsuki Fukutani Yume Tsuruhara Yuto Miyake Kenji Takao Hiromasa Ueno Mitsuo Otsuka Tadashi Suga Masafumi Terada Akinori Nagano Tadao Isaka Comparison of the relative muscle volume of triceps surae among sprinters, runners, and untrained participants Physiological Reports lateral gastrocnemius magnetic resonance imaging medial gastrocnemius plantar flexors soleus |
| title | Comparison of the relative muscle volume of triceps surae among sprinters, runners, and untrained participants |
| title_full | Comparison of the relative muscle volume of triceps surae among sprinters, runners, and untrained participants |
| title_fullStr | Comparison of the relative muscle volume of triceps surae among sprinters, runners, and untrained participants |
| title_full_unstemmed | Comparison of the relative muscle volume of triceps surae among sprinters, runners, and untrained participants |
| title_short | Comparison of the relative muscle volume of triceps surae among sprinters, runners, and untrained participants |
| title_sort | comparison of the relative muscle volume of triceps surae among sprinters runners and untrained participants |
| topic | lateral gastrocnemius magnetic resonance imaging medial gastrocnemius plantar flexors soleus |
| url | https://doi.org/10.14814/phy2.14588 |
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