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    The effect of ageing on skeletal muscle as assessed by quantitative MR imaging: an association with frailty and muscle strength

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    Publication date
    2020-02
    Author
    Farrow, Matthew
    Biglands, J.
    Tanner, S.F.
    Clegg, A.
    Brown, L.
    Hensor, E.M.A.
    O'Connor, P.
    Emery, P.
    Tan, A.L.
    Keyword
    Muscle
    Frailty
    T2
    MRI
    Sarcopenia
    Ageing
    Rights
    © The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/
    Peer-Reviewed
    Yes
    Open Access status
    Gold
    
    Metadata
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    Abstract
    Background: Skeletal muscles undergo changes with ageing which can cause sarcopenia that can result in frailty. Quantitative MRI may detect the muscle-deficit component of frailty which could help improve the understanding of ageing muscles. Aims: To investigate whether quantitative MRI measures of T2, fat fraction (FF), diffusion tensor imaging and muscle volume can detect differences within the muscles between three age groups, and to assess how these measures compare with frailty index, gait speed and muscle power. Methods: 18 ‘young’ (18–30 years), 18 ‘middle-aged’ (31–68 years) and 18 ‘older’ (> 69 years) healthy participants were recruited. Participants had an MRI of their dominant thigh. Knee extension and flexion power and handgrip strength were measured. Frailty (English Longitudinal Study of Ageing frailty index) and gait speed were measured in the older participants. Results: Young participants had a lower muscle MRI T2, FF and mean diffusivity than middle-aged and older participants; middle-aged participants had lower values than older participants. Young participants had greater muscle flexion and extension power, muscle volume and stronger hand grip than middle-aged and older participants; middle-aged participants had greater values than the older participants. Quantitative MRI measurements correlated with frailty index, gait speed, grip strength and muscle power. Discussion: Quantitative MRI and strength measurements can detect muscle differences due to ageing. Older participants had raised T2, FF and mean diffusivity and lower muscle volume, grip strength and muscle power. Conclusions: Quantitative MRI measurements correlate with frailty and muscle function and could be used for identifying differences across age groups within muscle.
    URI
    http://hdl.handle.net/10454/18473
    Version
    Published version
    Citation
    Farrow M, Biglands J, Tanner SF et al (2021) The effect of ageing on skeletal muscle as assessed by quantitative MR imaging: an association with frailty and muscle strength. Aging Clinical and Experimental Research. 33: 291-301.
    Link to publisher’s version
    https://doi.org/10.1007/s40520-020-01530-2
    Type
    Article
    Collections
    Life Sciences Publications

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