Table 4.

Normality tests of all variables.

Group	Variable	Test Statistic W	p-Value
1	EMG I(P)	0.96100	0.32840
1	EMG I(L)	0.96796	0.48497
1	EMG II(P)	0.94409	0.11721
1	EMG II(L)	0.96608	0.43811
2	EMG I(P)	0.94729	0.14295
2	EMG I(L)	0.95238	0.19573
2	EMG II(P)	0.93287	0.05855
2	EMG II(L)	0.96379	0.38573