Department of Sport, Exercise and Rehabilitation, Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, United Kingdom.
School of Sport, Exercise and Health Sciences, Loughborough University, Leicestershire, United Kingdom.
J Appl Physiol (1985). 2022 Sep 1;133(3):689-696. doi: 10.1152/japplphysiol.00264.2021. Epub 2022 Jul 14.
Resistance training increases volitional force-producing capacity, and it is widely accepted that such an increase is partly underpinned by adaptations in the central nervous system, particularly in the early phases of training. Despite this, the neural substrate(s) responsible for mediating adaptation remains largely unknown. Most studies have focused on the corticospinal tract, the main descending pathway controlling movement in humans, with equivocal findings. It is possible that neural adaptation to resistance training is mediated by other structures; one such candidate is the reticulospinal tract. The aim of this narrative mini-review is to articulate the potential of the reticulospinal tract to underpin adaptations in muscle strength. Specifically, we ) discuss why the structure and function of the reticulospinal tract implicate it as a potential site for adaptation; ) review the animal and human literature that supports the idea of the reticulospinal tract as an important neural substrate underpinning adaptation to resistance training; and ) examine the potential methodological options to assess the reticulospinal tract in humans.
抗阻训练会增加意志性的力量产生能力，人们普遍认为，这种增加部分是由中枢神经系统的适应所支撑的，尤其是在训练的早期阶段。尽管如此，负责介导适应的神经基质仍然知之甚少。大多数研究都集中在皮质脊髓束上，这是控制人类运动的主要下行通路，其发现结果存在争议。神经适应抗阻训练可能是由其他结构介导的；其中一个候选结构是网状脊髓束。本叙述性迷你综述的目的是阐明网状脊髓束在肌肉力量适应中的潜在作用。具体来说，我们）讨论了为什么网状脊髓束的结构和功能使其成为适应的潜在部位；）综述了支持网状脊髓束作为抗阻训练适应重要神经基质的动物和人类文献；和）检查了评估人类网状脊髓束的潜在方法学选择。
