Group III/IV locomotor muscle afferents alter motor cortical and corticospinal excitability and promote central fatigue during cycling exercise

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• 作者：Simranjit K. Sidhu^a ; ^e ; ^{simran.sidhu@adelaide.edu.au} ; Joshua C. Weavil^b ; Tyler S. Mangum^b ; Jacob E. Jessop^c ; Russell S. Richardson^a ; ^b ; ^d ; David E. Morgan^c ; Markus Amann^a ; ^b ; ^c ; ^d
• 关键词：CMEP ; cervicomedullary evoked potential ; CMS ; cervicomedullary stimulation ; CNS ; central nervous system ; cSP ; cortical silent period ; CTRL ; control ; EMG ; electromyogram ; FENT ; fentanyl ; MEP ; motor evoked potential ; Mmax ; maximal M-wave ; MNS ; motor nerve stimulation ; MVC ; maximal voluntary contraction ; RT ; resting twitch ; SIT ; superimposed twitch ; TMS ; transcranial magnetic stimulation ; VA ; voluntary activation ; VL ; vastus lateralis ; Wpeak ; peak power output
• 刊名：Clinical Neurophysiology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：128
• 期：1
• 页码：44-55
• 全文大小：913 K
• 卷排序：128

文摘

In the absence of fatigue: Group III/IV muscle afferents facilitate motor cortex. In presence of fatigue: Group III/IV muscle afferents disfacilitate motor cortex. Group III/IV muscle afferents promote central fatigue during endurance exercise.