Škarabot2021_Article_TheKnownsAndUnknownsOfNeuralAd.pdf (1.31 MB)
The knowns and unknowns of neural adaptations to resistance training
journal contribution
posted on 2021-01-07, 10:05 authored by Jakob SkarabotJakob Skarabot, Callum George Brownstein, Andrea Casolo, Alessandro Del Vecchio, Paul AnsdellThe initial increases in force production with resistance training are thought to be primarily underpinned by neural adaptations.
This notion is irmly supported by evidence displaying motor unit adaptations following resistance training; however,
the precise locus of neural adaptation remains elusive. The purpose of this review is to clarify and critically discuss the
literature concerning the site(s) of putative neural adaptations to short-term resistance training. The proliferation of studies
employing non-invasive stimulation techniques to investigate evoked responses have yielded variable results, but generally
support the notion that resistance training alters intracortical inhibition. Nevertheless, methodological inconsistencies and the
limitations of techniques, e.g., limited relation to behavioural outcomes and the inability to measure volitional muscle activity,
preclude irm conclusions. Much of the literature has focused on the corticospinal tract; however, preliminary research in
non-human primates suggests reticulospinal tract is a potential substrate for neural adaptations to resistance training, though
human data is lacking due to methodological constraints. Recent advances in technology have provided substantial evidence
of adaptations within a large motor unit population following resistance training. However, their activity represents the transformation
of aferent and eferent inputs, making it challenging to establish the source of adaptation. Whilst much has been
learned about the nature of neural adaptations to resistance training, the puzzle remains to be solved. Additional analyses
of motoneuron iring during diferent training regimes or coupling with other methodologies (e.g., electroencephalography)
may facilitate the estimation of the site(s) of neural adaptations to resistance training in the future.
History
School
- Sport, Exercise and Health Sciences
Published in
European Journal of Applied PhysiologyVolume
121Issue
3Pages
675 - 685Publisher
Springer VerlagVersion
- VoR (Version of Record)
Rights holder
© The authorsPublisher statement
This is an Open Access Article. It is published by Springer under the Creative Commons Attribution 4.0 International Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/Acceptance date
2020-11-18Publication date
2020-12-23Copyright date
2020ISSN
1439-6319eISSN
1439-6327Publisher version
Language
- en
Depositor
Dr Jakob Skarabot. Deposit date: 15 December 2020Usage metrics
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