Possibility for Visualizing the Muscle Microstructure by q-Space Imaging Technique
In the human body, skeletal muscle microstructures have been evaluated only by biopsy. Noninvasive examination of the microstructure of muscles would be useful for research and clinical practice in sports and musculoskeletal areas. The study is aimed at determining if q-space imaging (QSI) can revea...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Applied Bionics and Biomechanics |
| Online Access: | http://dx.doi.org/10.1155/2022/7929589 |
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| author | Yasushi Sera Daisuke Nakashima Junichi Hata Hirotaka James Okano Kazuki Sato Masaya Nakamura Takeo Nagura |
| author_facet | Yasushi Sera Daisuke Nakashima Junichi Hata Hirotaka James Okano Kazuki Sato Masaya Nakamura Takeo Nagura |
| author_sort | Yasushi Sera |
| collection | DOAJ |
| description | In the human body, skeletal muscle microstructures have been evaluated only by biopsy. Noninvasive examination of the microstructure of muscles would be useful for research and clinical practice in sports and musculoskeletal areas. The study is aimed at determining if q-space imaging (QSI) can reveal the microstructure of muscles in humans. Forty-three Japanese subjects (controls, distance runners, powerlifting athletes, and teenage runners) were included in this cross-sectional study. Magnetic resonance imaging of the lower leg was performed. On each leg muscle, full width at half maximum (FWHM) which indicated the muscle cell diameters and pennation angle (PA) were measured and compared. FWHM showed significant positive correlations with PA, which is related to muscle strength. In addition, FWHM was higher for powerlifting, control, distance running, and teenager, in that order, suggesting that it may be directing the diameter of each muscle cell. Type 1 and type 2 fibers are enlarged by growth, so the fact that the FWHM of the control group was larger than that of the teenagers in this study may indicate that the muscle fibers were enlarged by growth. Also, FWHM has the possibility to increase with increased muscle fibers caused by training. We showed that QSI had the possibility to depict noninvasively the microstructure like muscle fiber type and subtle changes caused by growth and sports characteristics, which previously could only be assessed by biopsy. |
| format | Article |
| id | doaj-art-6e6a82d9cac548efba11a53a6886ac14 |
| institution | Kabale University |
| issn | 1754-2103 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied Bionics and Biomechanics |
| spelling | doaj-art-6e6a82d9cac548efba11a53a6886ac142025-02-03T01:22:51ZengWileyApplied Bionics and Biomechanics1754-21032022-01-01202210.1155/2022/7929589Possibility for Visualizing the Muscle Microstructure by q-Space Imaging TechniqueYasushi Sera0Daisuke Nakashima1Junichi Hata2Hirotaka James Okano3Kazuki Sato4Masaya Nakamura5Takeo Nagura6Institute for Integrated Sports MedicineDepartment of Orthopaedic SurgeryDivision of Regenerative MedicineDivision of Regenerative MedicineInstitute for Integrated Sports MedicineDepartment of Orthopaedic SurgeryDepartment of Orthopaedic SurgeryIn the human body, skeletal muscle microstructures have been evaluated only by biopsy. Noninvasive examination of the microstructure of muscles would be useful for research and clinical practice in sports and musculoskeletal areas. The study is aimed at determining if q-space imaging (QSI) can reveal the microstructure of muscles in humans. Forty-three Japanese subjects (controls, distance runners, powerlifting athletes, and teenage runners) were included in this cross-sectional study. Magnetic resonance imaging of the lower leg was performed. On each leg muscle, full width at half maximum (FWHM) which indicated the muscle cell diameters and pennation angle (PA) were measured and compared. FWHM showed significant positive correlations with PA, which is related to muscle strength. In addition, FWHM was higher for powerlifting, control, distance running, and teenager, in that order, suggesting that it may be directing the diameter of each muscle cell. Type 1 and type 2 fibers are enlarged by growth, so the fact that the FWHM of the control group was larger than that of the teenagers in this study may indicate that the muscle fibers were enlarged by growth. Also, FWHM has the possibility to increase with increased muscle fibers caused by training. We showed that QSI had the possibility to depict noninvasively the microstructure like muscle fiber type and subtle changes caused by growth and sports characteristics, which previously could only be assessed by biopsy.http://dx.doi.org/10.1155/2022/7929589 |
| spellingShingle | Yasushi Sera Daisuke Nakashima Junichi Hata Hirotaka James Okano Kazuki Sato Masaya Nakamura Takeo Nagura Possibility for Visualizing the Muscle Microstructure by q-Space Imaging Technique Applied Bionics and Biomechanics |
| title | Possibility for Visualizing the Muscle Microstructure by q-Space Imaging Technique |
| title_full | Possibility for Visualizing the Muscle Microstructure by q-Space Imaging Technique |
| title_fullStr | Possibility for Visualizing the Muscle Microstructure by q-Space Imaging Technique |
| title_full_unstemmed | Possibility for Visualizing the Muscle Microstructure by q-Space Imaging Technique |
| title_short | Possibility for Visualizing the Muscle Microstructure by q-Space Imaging Technique |
| title_sort | possibility for visualizing the muscle microstructure by q space imaging technique |
| url | http://dx.doi.org/10.1155/2022/7929589 |
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