ArticleJournal of cachexia, sarcopenia and muscle2024
No ageing-related increase in fibre type grouping in sprint-trained masters runners: A 10-year follow-up study.
Article in Journal of cachexia, sarcopenia and muscle, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed, 4 citations in OpenAlex.
- Article
- A 10-Year Longitudinal Study of Muscle Morphology and Performance in Masters Sprinters.Journal of cachexia, sarcopenia and muscle · 2025Article
- Obesity-driven musculotendinous remodeling impairs tissue resilience to mechanical damage.Cell and tissue research · 2025Article
- No ageing-related increase in fibre type grouping in sprint-trained masters runners: A 10-year follow-up study.Journal of cachexia, sarcopenia and muscle · 2024Article
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 4 countries.
Funding
Abstract
backgroundPrevious research suggests that an ageing-associated remodelling and loss of motor units due to motor neuron death contributes significantly to muscle weakness in old age. In histological sections, motor unit remodelling is reflected by increased fibre type grouping. While regular exercise may not attenuate the loss of motor units during ageing, it has been suggested to facilitate reinnervation resulting in larger motor units, and a higher number and larger fibre type groups in histological sections of muscles from aged individuals.
methodsIn a 10-year follow-up study, we assessed changes in the prevalence and size of fibre type groups in the vastus lateralis muscle from 34 male masters sprinters (40-85 years at start).
resultsOver the 10 years, there was an ageing-related reduction in performance in the 60-m sprint (P < 0.001) without significant changes in fibre type composition and fibre cross-sectional area. Neither the number of fibre type groups, defined as a fibre surrounded exclusively by fibres of the same type, nor the group size changed significantly in the 10-year period.
conclusionsThese histological data show that there is limited to no significant fibre type grouping over a 10-year period in masters athletes who continued sprint run training. This observation challenges the paradigm that ageing, at least in systematically trained sprinters, is associated with motor unit remodelling.
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Registered trials
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