[足部负荷感受器的传入输入对空中踏步条件下脊髓α运动神经元兴奋性的影响]
[The influence of afferent inputs from the foot load receptors onto spinal alpha-motoneurons excitability in air-stepping condition].
作者信息
Selionov V A, Solopova I A
出版信息
Fiziol Cheloveka. 2011 Mar-Apr;37(2):133-7.
PMID:21542329
Abstract
We investigated excitability of alpha-motoneurons during voluntary and passive locomotor-like movements under air-stepping conditions during the imitation of foot loading. Limb loading notably inhibited the H-reflex during both static condition and active or passive stepping. Thus, load-related afferent inputs play an essentially role in phase-dependence H-reflex modulation. The excitability of alpha-motoneurons in the most degree is influenced by afferent inflow from foot receptors.
摘要
我们研究了在模拟足部负重的空气踏步条件下，主动和被动类似运动时α运动神经元的兴奋性。在静态、主动或被动踏步过程中，肢体负重均显著抑制H反射。因此，与负重相关的传入输入在相位依赖性H反射调制中起重要作用。α运动神经元的兴奋性在很大程度上受来自足部感受器的传入神经冲动的影响。
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