Corticospinal adaptations following resistance training and its relationship with strength: A systematic review and multivariate meta-analysis

Description

Neural adaptations to resistance training (RT) and their correlation with muscle strength remain partially understood. We conducted a systematic review and multivariate meta-analysis to examine the effects of metronome-paced (MP), self-paced (SP), and isometric (IM) training on M1 and corticospinal pathway activity. Following MP RT, a significant increase in corticospinal excitability was observed, correlating with increased strength. Conversely, no significant relationship was found after SP or IM training. RT also reduced the duration of the cortical silent period, but this change did not predict strength changes and was not specific to any training modality. No significant effects were found for short-interval intracortical inhibition. Our findings suggest that changes in corticospinal excitability may contribute to strength gains after RT. Furthermore, the relationship between these adaptations and strength appears dependent on the type of training performed.

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Ministerio de Ciencia e Innovación RTC2019-007150-1

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Instituto de Salud Carlos III PI14/01823

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Instituto de Salud Carlos III PI16/01575

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Instituto de Salud Carlos III PI18/01898

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Instituto de Salud Carlos III PI19/01576

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Instituto de Salud Carlos III PI21/01875

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Instituto de Salud Carlos III PI22/01704

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Fondo Europero de Desarrollo Regional PI14/01823

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Fondo Europero de Desarrollo Regional PI16/01575

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Fondo Europero de Desarrollo Regional PI18/01898

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Fondo Europero de Desarrollo Regional PI19/01576

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Fondo Europero de Desarrollo Regional PI21/01875

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Fondo Europero de Desarrollo Regional PI22/01704

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Consejería de Economía, Innovación, Ciencia y Empleo CVI-02526

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Consejería de Economía, Innovación, Ciencia y Empleo CTS-7685

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Consejería de Salud y Bienestar Social PI-0471-2013

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Consejería de Salud y Bienestar Social PE-0210-2018

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Consejería de Salud y Bienestar Social PI-0459-2018

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Consejería de Salud y Bienestar Social PE-0186- 2019

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Consejería de Transformación Económica, Industria, Conocimiento y Universidades PY20_00896

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Ministerio de Ciencia e Innovación FPU16/03550

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Universidad de Sevilla USE-18817-A

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