作者
Chandramouli Krishnan, Rajiv Ranganathan, Shailesh S Kantak, Yasin Y Dhaher, William Z Rymer
发表日期
2014/5/1
期刊
Brain stimulation
卷号
7
期号
3
页码范围
443-450
出版商
Elsevier
简介
Background
Transcranial direct current stimulation (tDCS) is known to reliably alter motor cortical excitability in a polarity dependent fashion such that anodal stimulation increases cortical excitability and cathodal stimulation inhibits cortical excitability. However, the effect of tDCS on agonist and antagonist volitional muscle activation is currently not known.
Objective
This study investigated the effect of motor cortical anodal tDCS on EMG/force relationships of biceps brachii (agonist) and triceps brachii (antagonist) using surface electromyography (EMG).
Methods
Eighteen neurologically intact adults (9 tDCS and 9 controls) participated in this study. EMG/force relationships were established by having subjects perform submaximal isometric contractions at several force levels (12.5%, 25%, 37.5%, and 50% of maximum).
Results
Results showed that anodal tDCS significantly affected the EMG/force relationship of the …
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C Krishnan, R Ranganathan, SS Kantak, YY Dhaher… - Brain stimulation, 2014