Table 4.

Comparison of gastrocnemius muscle thickness between the two groups (cm)

Time point	Control group (n=24)	Observation group (n=24)	t	P
Before injection	1.85±0.35	1.86±0.30	0.1063	0.9158
2 weeks after injection	1.69±0.19*	1.59±0.15*	2.0237	0.0488
4 weeks after injection	1.55±0.21*	1.44±0.16*	2.0411	0.0470
12 weeks after injection	1.49±0.19*	1.40±0.10*	2.0535	0.0457
24 weeks after injection	1.67±0.22*	1.60±0.15*	1.2879	0.2042

^*P<0.05 vs. before injection in same group.