Role of muscle afferents in the inhibition of motoneurons during fatigue.
Role of muscle afferents in the inhibition of motoneurons during fatigue.
复制标题
肌肉传入在疲劳期间抑制运动神经元中的作用。
DOI：
10.1007/978-1-4899-1016-5_21
复制
发表时间：
1995
影响因子：
--
通讯作者：
Kaufman,MP
中科院分区：
文献类型：
--
作者：
Garland,SJ;Kaufman,MP
在有意识的人类中，令人疲劳的肌肉收缩伴随着α运动神经元放电率的降低。 α运动神经元放电率与骨骼肌产生力之间的关联被称为“肌肉智慧”（Marsden 等，1983）。据信，其目的是确保疲劳的骨骼肌的中枢神经驱动与产生所需力量所需的驱动相匹配。此外，肌肉智慧可能是一种可以减少或推迟中枢神经疲劳的机制（Enoka & Stuart，1992）。 Bigland-Ritchie 及其同事（1986）提出，疲劳的骨骼肌产生的反射至少在一定程度上是肌肉智慧的原因。本章有两个目的。第一个是评估由疲劳的骨骼肌引起的反射导致肌肉智慧的证据，第二个是检查肌肉传入的放电特性，以确定哪些肌肉传入最有可能引发这种现象的反射。
In conscious humans, fatiguing muscular contractions are accompanied by a decrease in the discharge rate of alpha motoneurons. The association between alpha motoneuron discharge rate and the generation of force by skeletal muscle has been called “muscle wisdom” (Marsden et al., 1983). Its purpose is believed to ensure that central neural drive to skeletal muscle, which is fatigued, matches that needed to generate the required force. In addition, muscle wisdom may be one mechanism that functions either to decrease or to postpone central neural fatigue (Enoka & Stuart, 1992). Bigland-Ritchie and colleagues (1986) have suggested that a reflex arising from fatigued skeletal muscle is responsible, at least in part, for muscle wisdom. This chapter has two purposes. The first is to evaluate the evidence that a reflex arising from fatigued skeletal muscle causes muscle wisdom, and the second is to examine the discharge properties of muscle afferents to determine which ones are most likely to initiate reflexly this phenomenon.