Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain.
Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain; Departamento de Psicología Experimental, Facultad de Psicología, Universidad de Sevilla, Seville, Spain.
Neurosci Biobehav Rev. 2023 Sep;152:105289. doi: 10.1016/j.neubiorev.2023.105289. Epub 2023 Jun 21.
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.
神经适应抗阻训练（RT）及其与肌肉力量的相关性仍部分未知。我们进行了系统综述和多元荟萃分析，以研究节拍器 paced（MP）、自我 paced（SP）和等长（IM）训练对 M1 和皮质脊髓通路活动的影响。在 MP RT 之后，观察到皮质脊髓兴奋性显著增加，与力量增加相关。相反，在 SP 或 IM 训练后没有发现显著的相关性。RT 还降低了皮质静息期的持续时间，但这种变化与力量变化无关，也不是任何训练模式所特有的。短程皮质内抑制没有显著影响。我们的研究结果表明，皮质脊髓兴奋性的变化可能有助于 RT 后的力量增长。此外，这些适应性与力量之间的关系似乎取决于所进行的训练类型。
