Table 3.

The comparison of EMG for evaluable patients

Group	Items	T0	T1	T2
Intervention group (n = 30)	Pre-mean, μv	5.35 ± 0.67	4.66 ± 0.62	3.40 ± 0.45*
	Flick-max, μv	20.53 ± 1.36	25.62 ± 1.32*	38.92 ± 1.41*
	Tonic-mean, μv	16.62 ± 1.21	19.59 ± 1.11	33.31 ± 1.00*
	Variation of tonic-mean	0.26 ± 0.02	0.23 ± 0.02	0.24 ± 0.03
	Post-mean, μv	3.73 ± 0.64	3.50 ± 0.50	4.41 ± 0.50
Control group (n = 30)	Pre-mean, μv	6.88 ± 0.43	4.48 ± 0.62*	2.63 ± 0.29*
	Flick-max, μv	21.73 ± 1.57	25.90 ± 2.35	30.42 ± 1.73*
	Tonic-mean, μv	18.41 ± 1.16	19.14 ± 1.53	23.02 ± 1.22*
	Variation of tonic-mean	0.23 ± 0.10	0.23 ± 0.01	0.22 ± 0.01
	Post-mean, μv	4.56 ± 0.69	3.73 ± 0.57	3.37 ± 0.39

EMG electromyogram, flick-max max value of fast contractions, post-mean mean value of final rest, pre-mean mean value of initial rest, tonic-mean mean value of 10-s sustained contractions, T0 pre-intervention (2 months after surgery), T1 3 months after surgery, T2 6 months after surgery

*Compared with T0, p < 0.05