Standard Correction of Vision Worsens EMG Activity of Pericranial Muscles in Chronic TMD Subjects

Table 4

EMG values with eyes closed and with glasses on.

Muscle group		CE			CEWG
		N	Mean	SD	N	Mean	SD	t value	value
TMD group	LTA	20	2.65	0.5	20	2.55	0.6	0.573	0.570
	RTA	20	2.78	0.8	20	2.69	0.6	0.402	0.690
	LMM	20	2.02	0.6	20	2.12	0.5	0.573	0.570
	RMM	20	2.21	0.5	20	2.31	1.1	0.370	0.713
	LSM	20	2.36	0.8	20	2.45	0.6	0.402	0.690
	RSM	20	2.87	0.6	20	2.77	1.1	0.357	0.723
	LDA	20	2.01	0.5	20	2.1	1.1	0.333	0.741
	RDA	20	1.98	0.4	20	1.48	0.8	2.500	0.017
Healthy group	LTA	20	1.54	0.5	20	1.54	0.6	0.000	1.000
	RTA	20	1.63	0.4	20	1.69	0.9	0.272	0.787
	LMM	20	1.78	0.4	20	1.71	1.1	0.267	0.791
	RMM	20	1.81	0.6	20	1.56	0.5	1.431	0.160
	LSM	20	1.95	0.8	20	1.89	1	0.210	0.835
	RSM	20	1.85	0.3	20	1.85	0.8	0.000	1.000
	LDA	20	1.13	0.3	20	1.12	0.6	0.067	0.947
	RDA	20	1.15	0.2	20	1.17	0.5	0.166	0.869