Table II. —Change in outcomes each group from baseline (T0) to the end of the intervention period (T1).

Outcomes	Groups	T0	T1	Difference within groups	Difference between groups
				P value a	P value b, c
AHI (mm)	rPMS	12.4±4.0 (10.5)	11.6±4.6 (9.8)	0.200	0.023* b
	Control	11.6±3.6 (11.1)	13.5±4.0 (13.1)	0.004**
NRS for shoulder pain at rest	rPMS	0.9±2.7 (0)	0.3±1.3 (0)	0.109	0.232 c
	Control	0.6±1.9 (0)	0.7±1.9 (0)	0.854
NRS for shoulder pain at movement	rPMS	3.9±4.2 (1.5)	3.8±3.4 (3.5)	0.719	0.991 c
	Control	3.3±3.4 (3.0)	2.9±3.6 (1.5)	0.218
MAS of shoulder adductors	rPMS	0.8±0.9 (1)	0.8±1.1 (0)	1.000	0.746 c
	Control	0.6±0.9 (0)	0.5±0.8 (0)	0.480
MAS of elbow flexors	rPMS	1.0±0.9 (1)	1.0±1.1 (1)	0.564	0.559 c
	Control	0.8±1.1 (0.5)	0.8±0.9 (1)	0.527
FMA-UE total score	rPMS	24.9±23.7 (10)	31.2±25.5 (20)	<0.001**	0.680 c
	Control	30.2±23.1 (23)	39.8±22.9 (47.5)	<0.001**
A, shoulder / elbow / forearm	rPMS	14.9±12.5 (8)	18.6±13.2 (16)	0.001**	0.972 c
	Control	19.0±12.2 (19)	23.4±11.8 (28.5)	0.001**
B, wrist	rPMS	3.1±4.1 (0)	3.9±4.2 (2)	0.180	0.250 c
	Control	3.7±4.1 (1.5)	5.3±4.3 (6.5)	0.010*
C, hand	rPMS	5.5±6.0 (3)	6.8±6.3 (4)	0.006*	0.106 c
	Control	6.0±5.7 (3.5)	8.8±5.3 (10)	<0.001**
D, coordination / speed	rPMS	1.4±2.2 (0)	2.0±2.6 (0)	0.066	0.272 c
	Control	1.6±2.1 (0)	2.3±2.2 (3)	0.006*
A-ROM of shoulder abduction (degree)	rPMS	61.1±72.8 (15)	72.3±69.6 (70)	0.074	0.430 c
	Control	81.3±73.0 (65)	106.7±73.7 (125)	0.004**

Data are described as mean±SD (median). AHI: acromio-humeral interval; NRS: Numerical Rating Scale; MAS: Modified Ashworth scale; FMA-UE: Fugl-Meyer Assessment scale (upper extremity); A-ROM: active range of motion. ^a Wilcoxon signed-rank test; ^b unpaired t-test; ^c Mann-Whitney U Test; *P<0.05, **P<0.01.