Table 2.

Clinical measurement results at baseline and after 4 weeks and 12 weeks of ESWT

	RETT measurements				CP measurements				Comparison of two groups
Variables (Mean ± SEM)	1 (Baseline)	2 (4 weeks)	3 (12 weeks)	pa	1 (Baseline)	2 (4 weeks)	3 (12 weeks)	pa	pb	pc
MAS of lower extremity flexor
	4.00 ± 0.26	3.50 ± 0.43	3.33 ± 0.49	0.061	2.20 ± 0.30§	1.63 ± 0.31	1.50 ± 0.28§	0.011*	0.003**	0.930
Ankle PROM (º)
	57.08 ± 3.68	58.33 ± 3.07	58.33 ± 3.07	0.135	47.50 ± 3.88	55.00 ± 2.20	55.50 ± 2.07	0.002**	0.177	0.020*
GMFM-88 Variables Score (%)
Lying and Rolling	68.30 ± 11.63	68.63 ± 11.49	68.95 ± 11.36	0.368	66.93 ± 8.94	67.45 ± 8.83	68.24 ± 8.70	0.305	0.936	0.586
Sitting	53.33 ± 11.46	53.33 ± 11.46	53.33 ± 11.46	1.000	46.33 ± 10.81	49.44 ± 10.76	49.00 ± 10.71	0.079	0.410	0.091
Crawling and Kneeling	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	1.000	29.21 ± 11.08	30.16 ± 11.11	30.16 ± 11.11	0.135	0.079	0.153
Standing	20.94 ± 13.08	21.79 ± 13.53	22.22 ± 13.93	0.156	29.40 ± 9.70	31.11 ± 9.90	31.79 ± 10.04	0.076	0.866	0.440
Walking/Running/Jumping	16.67 ± 11.08	16.90 ± 11.31	17.36 ± 11.51	0.156	23.70 ± 8.69	25.46 ± 9.05	27.69 ± 9.44	0.003**	0.968	0.083
Total	31.85 ± 8.93	32.13 ± 9.04	32.37 ± 9.13	0.030*	39.11 ± 8.86§	40.73 ± 8.93	41.37 ± 9.06§	0.000***	0.938	0.030*

p value: *< 0.05, **< 0.01, ***< 0.001

p^a: Comparison between three assessing time points, Friedman's two-way analysis of variance

p^b: Comparison between the group of Rett syndrome and CP at baseline, Mann–Whitney Test

p^c: Comparison of the alteration from baseline to 12 weeks between the group of Rett syndrome and CP, GEE

^§: Comparison between baseline and 12th week, p value: < 0.05, multiple comparison of Friedman's two-way analysis of variance

CP Cerebral palsy, RETT Rett syndrome, SEM standard error of the mean, MAS Modified Ashworth Scale, PROM Passive range of motion, GMFM Gross motor function measure