Table 1.

Rectified and integrated EMG activities recorded during simple imagined movements

Subjects	IM (↑)	IM (↓)	IM (↑) slow	IM (↓) slow
1	2.74	1.39	2.95	1.75
2	2.04	0.07	2.32	0.00
3	0.36	0.01	0.38	0.00
4	0.96	0.27	2.56	0.54
5	0.03	0.03	0.01	0.03
6	0.63	2.14	3.31	0.22
7	0.69	0.04	1.18	0.03
8	0.96	0.00	1.41	0.04
9	0.20	0.03	0.00	0.00
10	0.02	0.02	0.10	0.01
11	0.00	0.00	0.00	0.00
12	0.98	2.65	1.13	0.34
Mean	0.80	0.55	1.28	0.25
SDs	0.84	0.91	1.18	0.48

From left to right, each column corresponds to an imagined movement in a given direction with two different velocities [hand extension, IM (↑); hand flexion, IM (↓); slow hand extension, IM (↑) slow; and slow hand flexion, IM (↓) slow]. Lines 1–12 give the individual rectified and integrated EMG activities expressed as a percentage of each subject's MVC. The last two lines give the mean EMG values and the corresponding SDs.