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European Journal of Applied Physiology

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30.05.2021 | Invited Review

Chronic resistance training: is it time to rethink the time course of neural contributions to strength gain?

verfasst von: G. E. P. Pearcey, S. Alizedah, K. E. Power, D. C. Button

Erschienen in: European Journal of Applied Physiology | Ausgabe 9/2021

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Abstract

Resistance training enhances muscular force due to a combination of neural plasticity and muscle hypertrophy. It has been well documented that the increase in strength over the first few weeks of resistance training (i.e. acute) has a strong underlying neural component and further enhancement in strength with long-term (i.e. chronic) resistance training is due to muscle hypertrophy. For obvious reasons, collecting long-term data on how chronic-resistance training affects the nervous system not feasible. As a result, the effect of chronic-resistance training on neural plasticity is less understood and has not received systematic exploration. Thus, the aim of this review is to provide rationale for investigating neural plasticity beyond acute-resistance training. We use cross-sectional work to highlight neural plasticity that occurs with chronic-resistance training at sites from the brain to spinal cord. Specifically, intra-cortical circuitry and the spinal motoneuron seem to be key sites for this plasticity. We then urge the need to further investigate the differential effects of acute versus chronic-resistance training on neural plasticity, and the role of this plasticity in increased strength. Such investigations may help in providing a clearer definition of the continuum of acute and chronic-resistance training, how the nervous system is altered during this continuum and the causative role of neural plasticity in changes in strength over the continuum of resistance training.

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Titel: Chronic resistance training: is it time to rethink the time course of neural contributions to strength gain?
verfasst von: G. E. P. Pearcey
S. Alizedah
K. E. Power
D. C. Button
Publikationsdatum: 30.05.2021
Verlag: Springer Berlin Heidelberg
Erschienen in: European Journal of Applied Physiology / Ausgabe 9/2021
Print ISSN: 1439-6319
Elektronische ISSN: 1439-6327
DOI: https://doi.org/10.1007/s00421-021-04730-4

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