Transcranial Magnetic Stimulation with the Maximum Voluntary Muscle Contraction Facilitates Motor Neuron Excitability and Muscle Force

Table 1

MEP sizes and pinching muscle force before TMS with MVC under each condition.

		MEP amplitudes (mV)		MEP areas (mV × ms)		Pinching muscle force (V)
		FDI	TH	FDI	TH
Conditions	Test 1	3.88 ± 0.85	2.31± 0.36	11.64 ± 3.85	6.69 ± 1.45	13.2 ± 2.0
	Test 2	3.74 ± 0.90	3.13 ± 0.72	7.59 ± 1.21	8.62 ± 2.26	14.5 ± 2.2
	Placebo	4.37 ± 0.67	3.64 ± 0.82	12.40 ± 2.84	10.77 ± 2.91	18.3 ± 2.6

Data are shown as mean ± S.E. There were 8 data sets except for pinching muscle force under the test 1 and test 2 conditions (𝑛=6). MEP: motor evoked potentials, TMS: transcranial magnetic stimulation, MVC: the maximum voluntary muscle contraction, FDI: the digital interossei muscle, TH: the thenar muscle.