Calculation and Analysis of Microstate Related to Variation in Executed and Imagined Movement of Force of Hand Clenching

Table 2

The 4 statistical parameters of 3 kinds of microstates with different grip forces.

Microstate parameters			Duration (ms)			Occurrence			Time coverage (%)			Mean amplitude (µV)
			A	B	C	A	B	C	A	B	C	A	B	C
Executed	Force_4 kg	M	496.72	2008.03	995.25	20	47	55	14.19	57.37	28.44	1.43	2.15	3.33
		SD	3.8	6.31	5.78	0.43	1.12	0.84	1.01	3.61	2.06	0.83	1.21	1.04
	Force_10 kg	M	516.39	1542.62	1440.99	21	48	59	14.75	44.07	41.18	1.57	2.38	3.68
		SD	2.67	7.42	6.12	0.52	0.81	1.24	0.93	2.19	1.51	0.51	1.14	0.94
	Force_16 kg	M	488.52	1254.10	1757.38	23	47	65	13.96	35.83	50.21	1.88	2.95	4.18
		SD	2.2	5.76	4.1	1.01	0.63	0.95	0.9	3.11	2.23	0.67	0.96	0.42
Imagined	Force_4 kg	M	519.51	2219.67	760.82	21	35	33	14.84	63.42	21.74	0.75	1.72	2.33
		SD	5.26	12.53	9.86	0.63	1.06	0.84	0.96	6.37	8.2	0.64	1.03	0.85
	Force_10 kg	M	526.23	1762.29	1211.48	18	36	42	15.06	50.35	34.59	1.03	2.16	2.96
		SD	4.68	10.84	10.32	0.58	0.94	1.31	0.8	9.05	10.31	0.31	0.89	1.06
	Force_16 kg	M	501.64	1562.30	1496.72	20	33	52	14.33	44.64	41.03	1.25	2.54	3.47
		SD	6.4	9.35	8.4	0.31	0.73	0.91	0.74	4.46	9.16	0.68	0.61	0.31