The Functional and Anatomical Impacts of Healthy Muscle Ageing
Even “healthy” muscle ageing is often associated with substantial changes in muscle form and function and can lead to increased injury risks and significant negative impacts on quality of life. However, the impacts of healthy muscle ageing on the fibre architecture and microstructure of different mu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Biology |
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| Online Access: | https://www.mdpi.com/2079-7737/12/10/1357 |
| _version_ | 1797574694908461056 |
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| author | James P. Charles Karl T. Bates |
| author_facet | James P. Charles Karl T. Bates |
| author_sort | James P. Charles |
| collection | DOAJ |
| description | Even “healthy” muscle ageing is often associated with substantial changes in muscle form and function and can lead to increased injury risks and significant negative impacts on quality of life. However, the impacts of healthy muscle ageing on the fibre architecture and microstructure of different muscles and muscle groups throughout the lower limb, and how these are related to their functional capabilities, are not fully understood. Here, a previously established framework of magnetic resonance and diffusion tensor imaging was used to measure the muscle volumes, intramuscular fat, fibre lengths and physiological cross-sectional areas of 12 lower limb muscles in a cohort of healthily aged individuals, which were compared to the same data from a young population. Maximum muscle forces were also measured from an isokinetic dynamometer. The more substantial interpopulation differences in architecture and functional performance were located within the knee extensor muscles, while the aged muscles were also more heterogeneous in muscle fibre type and atrophy. The relationships between architecture and muscle strength were also more significant in the knee extensors compared to other functional groups. These data highlight the importance of the knee extensors as a potential focus for interventions to negate the impacts of muscle ageing. |
| first_indexed | 2024-03-10T21:25:57Z |
| format | Article |
| id | doaj.art-e25e280fc5ed4a189e9145fb2b179dee |
| institution | Directory Open Access Journal |
| issn | 2079-7737 |
| language | English |
| last_indexed | 2024-03-10T21:25:57Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biology |
| spelling | doaj.art-e25e280fc5ed4a189e9145fb2b179dee2023-11-19T15:44:11ZengMDPI AGBiology2079-77372023-10-011210135710.3390/biology12101357The Functional and Anatomical Impacts of Healthy Muscle AgeingJames P. Charles0Karl T. Bates1Department of Musculoskeletal & Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, UKDepartment of Musculoskeletal & Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, UKEven “healthy” muscle ageing is often associated with substantial changes in muscle form and function and can lead to increased injury risks and significant negative impacts on quality of life. However, the impacts of healthy muscle ageing on the fibre architecture and microstructure of different muscles and muscle groups throughout the lower limb, and how these are related to their functional capabilities, are not fully understood. Here, a previously established framework of magnetic resonance and diffusion tensor imaging was used to measure the muscle volumes, intramuscular fat, fibre lengths and physiological cross-sectional areas of 12 lower limb muscles in a cohort of healthily aged individuals, which were compared to the same data from a young population. Maximum muscle forces were also measured from an isokinetic dynamometer. The more substantial interpopulation differences in architecture and functional performance were located within the knee extensor muscles, while the aged muscles were also more heterogeneous in muscle fibre type and atrophy. The relationships between architecture and muscle strength were also more significant in the knee extensors compared to other functional groups. These data highlight the importance of the knee extensors as a potential focus for interventions to negate the impacts of muscle ageing.https://www.mdpi.com/2079-7737/12/10/1357diffusion tensor imagingmagnetic resonance imagingmuscle architecture |
| spellingShingle | James P. Charles Karl T. Bates The Functional and Anatomical Impacts of Healthy Muscle Ageing Biology diffusion tensor imaging magnetic resonance imaging muscle architecture |
| title | The Functional and Anatomical Impacts of Healthy Muscle Ageing |
| title_full | The Functional and Anatomical Impacts of Healthy Muscle Ageing |
| title_fullStr | The Functional and Anatomical Impacts of Healthy Muscle Ageing |
| title_full_unstemmed | The Functional and Anatomical Impacts of Healthy Muscle Ageing |
| title_short | The Functional and Anatomical Impacts of Healthy Muscle Ageing |
| title_sort | functional and anatomical impacts of healthy muscle ageing |
| topic | diffusion tensor imaging magnetic resonance imaging muscle architecture |
| url | https://www.mdpi.com/2079-7737/12/10/1357 |
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